Document:

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                                                                    EXHIBIT 10.7

                              TAX SHARING AGREEMENT

                                       BY

                            ICN PHARMACEUTICALS, INC.

                                       AND

                                 RIBAPHARM INC.
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                                TABLE OF CONTENTS

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                                                                            PAGE
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SECTION 1.  Definition of Terms

SECTION 2.  Allocation of Income Tax Liabilities

SECTION 3.  Preparation and Filing of Tax Returns

SECTION 4.  Refunds, Carrybacks and Tax Benefits

SECTION 5.  Tax Payments and Intercompany Billings

SECTION 6.  Assistance and Cooperation

SECTION 7.  Tax Records

SECTION 8.  Tax Contests

SECTION 9.  No Inconsistent Actions

SECTION 10. Survival of Obligations

SECTION 11. Employee Matters

SECTION 12. Treatment of Payments; Tax Gross Up

SECTION 13. Disagreements

SECTION 14. Late Payments

SECTION 15. Expenses

SECTION 16. General
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                              TAX SHARING AGREEMENT

      This Agreement is entered into as of [date] by ICN Pharmaceuticals, Inc.,
a Delaware corporation ("ICN"), and RIBAPHARM Inc., a Delaware corporation
("RIBAPHARM"). Capitalized terms used in this Agreement are defined herein.
Unless otherwise indicated, all "Section" references in this Agreement are to
sections of this Agreement.

                                    RECITALS

      WHEREAS, the board of directors of ICN has determined that it would be in
the best interests of ICN and its stockholders to completely separate the
Biotechnology Business from ICN;

      WHEREAS, ICN has caused RIBAPHARM to be incorporated in order to effect
such separation;

      WHEREAS, ICN has contributed and transferred to RIBAPHARM, and RIBAPHARM
has received and assumed, the assets and liabilities then associated with the
Biotechnology Business;

      WHEREAS, ICN and RIBAPHARM intend that the contribution of the assets and
liabilities associated with the Biotechnology Business qualified as a tax-free
transfer under Section 351 or 368(a)(1)(D) of the Code;

      WHEREAS, ICN currently owns all of the issued and outstanding RIBAPHARM
common stock;

      WHEREAS, ICN and RIBAPHARM currently contemplate that ICN will make an
initial public offering of an amount of its RIBAPHARM common stock that will
reduce ICN's ownership of stock in RIBAPHARM to not less than 80% of the
combined voting power and value of all outstanding RIBAPHARM stock;

      WHEREAS, ICN currently contemplates that, following such initial public
offering, and subject to the satisfaction of certain conditions, ICN will
distribute to the holders of its common stock on a pro rata basis all of the
shares of RIBAPHARM common stock owned by ICN;

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      WHEREAS, ICN and RIBAPHARM intend that the Distribution will be tax-free
to ICN and its stockholders under Section 355 of the Code;

      WHEREAS, as a result of the Distribution, RIBAPHARM will cease to be a
member of the affiliated group of which ICN is the common parent, effective as
of the Distribution Date; and

      WHEREAS, ICN and RIBAPHARM desire to provide for and agree upon the
allocation between the parties of liabilities for Taxes arising prior to, as a
result of, and subsequent to the Distribution, and to provide for and agree upon
other matters relating to Taxes;

      NOW, THEREFORE, in consideration of the premises and the representations,
warranties, covenants and agreements herein contained, and for other good and
valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, and intending to be legally bound hereby, the parties hereby agree
as follows:

SECTION 1. DEFINITION OF TERMS.

For purposes of this Agreement (including the recitals hereof), the following
terms have the following meanings:

      "ACCOUNTING CUTOFF DATE" means, with respect to RIBAPHARM, any date as of
the end of which there is a closing of its financial accounting records.

      "ADJUSTMENT REQUEST" means any formal or informal claim or request filed
with any Tax Authority, or with any administrative agency or court, for the
adjustment, refund, or credit of Taxes, including (a) any amended Tax Return
claiming adjustment to the Taxes as reported on the Tax Return, or if
applicable, as previously adjusted, or (b) any claim for refund or credit of
Taxes previously paid.

      "AFFILIATE" means any entity that directly or indirectly is "controlled"
by the person or entity in question. "Control" means the possession, directly or
indirectly, of the power to direct or cause the direction of the management and
policies of a person, whether through ownership of

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voting securities, by contract or otherwise. Except as otherwise provided
herein, the term Affiliate shall refer to Affiliates of a person as determined
immediately after the Distribution.

      "AFFILIATION AND DISTRIBUTION AGREEMENT" means the Affiliation and
Distribution Agreement between ICN and RIBAPHARM dated [date].

      "AGREEMENT" means this Tax Sharing Agreement.

      "APPLICATION FOR RULING" means the letter filed by ICN requesting a
private letter ruling from the Internal Revenue Service regarding the tax
consequences of the Distribution.

      "BIOTECHNOLOGY BUSINESS" means the biotechnology business conducted by
RIBAPHARM that previously was conducted as a division of ICN.

      "CARRYBACK" or "CARRYFORWARD" means any net operating loss, net capital
loss, excess tax credit, foreign tax credit or other similar Tax Item which may
or must be carried from one Tax Period to another Tax Period under the Code or
other applicable Tax Law.

      "CODE" means the U.S. Internal Revenue Code of 1986, as amended from time
to time, or any successor law.

      "COMPANY" means ICN or RIBAPHARM, as the context requires.

      "CONSOLIDATED INCOME TAX RETURN" OR "COMBINED INCOME TAX RETURN" means any
Tax Return relating to Income Tax which is computed by reference to the assets
and activities of members of the ICN Group (other than members of the RIBAPHARM
Group) and the RIBAPHARM Group.

      "CONSOLIDATED PERIOD" or "CONSOLIDATED PERIODS" means any taxable period
or periods between the Contribution Date and the Distribution Date, during which
time RIBAPHARM is a member of the ICN Group.

      "CONTRIBUTION" has the meaning set forth in the Affiliation and
Distribution Agreement.

      "CONTRIBUTION DATE" means the date of the Contribution;

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      "DISTRIBUTION" means the distribution of RIBAPHARM common stock by ICN in
one or more transactions occuring after the Initial Public Offering that
collectively have the effect that all shares of RIBAPHARM common stock held by
ICN are distributed to ICN stockholders.

      "DISTRIBUTION DATE" means any date or dates, as the case may be,
determined by ICN, in its sole and absolute discretion, to be a date on which
shares of RIBAPHARM common stock held by ICN are distributed in connection with
the Distribution.

      "FEDERAL INCOME TAX" means any Income Tax imposed by the United States
government.

      "FOREIGN INCOME TAX" means any Income Tax imposed by any foreign country
or any possession of the United States, or by any political subdivision of any
foreign country or United States possession, which is an income tax as defined
in Treasury Regulation Section 1.901-2.

      "GROUP" means the ICN Group or the RIBAPHARM Group, as the context
requires.

      "ICN AFFILIATE" has the meaning set forth in the Affiliation and
Distribution Agreement.

      "ICN FEDERAL CONSOLIDATED RETURN" means any United States federal
Consolidated Income Tax Return for the affiliated group (as that term is defined
in Code Section 1504) that includes ICN as the common parent and that includes,
during the Consolidated Periods, the RIBAPHARM Group.

      "ICN GROUP" means all corporations included in the ICN Federal
Consolidated Income Tax Return.

      "INCOME TAX" means all Taxes (i) based upon, measured by, or calculated
with respect to, net income or net receipts, proceeds or profits or (ii) based
upon, measured by, or calculated with respect to multiple bases (including, but
not limited to, corporate franchise and occupation Taxes) if such Tax may be
based upon, measured by, or calculated with respect to one or more bases
described in clause (i) above.

      "INITIAL PUBLIC OFFERING" has the meaning set forth in the Affiliation and
Distribution Agreement.

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      "INTERNAL REVENUE SERVICE" OR "IRS" means the United States Internal
Revenue Service or the United States Department of the Treasury, as the context
requires.

      "IRS PRIVATE LETTER RULING" means the private letter ruling issued by the
IRS in response to the Application for Ruling.

      "OTHER TAX" means any Tax that is not an Income Tax.

      "PAYMENT DATE" means (i) with respect to any ICN Federal Consolidated
Return, the due date for any required installment of estimated taxes determined
under Code Section 6655, the due date (determined without regard to extensions)
for filing the return determined under Code Section 6072, and the date the
return is filed, and (ii) with respect to any Consolidated or Combined State
Income Tax Return, the corresponding dates determined under the applicable Tax
Law.

      "POST-DISTRIBUTION PERIOD" means any Tax Period beginning after the
Distribution Date, and, in the case of any Straddle Period, the portion of such
Straddle Period beginning the day after the Distribution Date.

      "PRE-DISTRIBUTION PERIOD" means any Tax Period ending on or before the
Distribution Date, and, in the case of any Straddle Period, the portion of such
Straddle Period ending on the Distribution Date.

      "PRIME RATE" means the base rate on corporate loans charged by Citibank,
N.A., New York, New York from time to time, compounded on each March 31, June
30, September 30 and December 31.

      "RESPONSIBLE COMPANY" means, with respect to any Tax Return, the Company
having responsibility for preparing and filing such Tax Return under this
Agreement.

      "RESTRUCTURING TAX" means the Taxes described in clauses (ii) and (iii) of
Section 2.5(a).

      "RIBAPHARM GROUP" means RIBAPHARM and all corporations included in the
RIBAPHARM Federal Consolidated Return, or, during any Consolidated Period, that
would be

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included in such Return if RIBAPHARM were not included in the ICN Federal
Consolidated Return.

      "RIBAPHARM FEDERAL CONSOLIDATED RETURN" means any United States federal
Income Tax Return or Returns in respect of periods after the Consolidated Period
filed by RIBAPHARM alone or for the affiliated group (as that term is defined in
Code Section 1504) that includes RIBAPHARM as the common parent.

      "SEPARATE COMPANY TAX" means any Tax computed by reference solely to the
assets and activities of a member or members of a single Group.

      "STRADDLE PERIOD" means any Tax Period that begins on or before and ends
after the Distribution Date.

      "STATE INCOME TAX" means any Income Tax imposed by any State of the United
States or by any political subdivision of any such State.

      "TAINTING ACT" shall have the meaning provided in Section 9.

      "TAX" or "TAXES" means any income, gross income, gross receipts, profits,
capital stock, franchise, withholding, payroll, social security, workers
compensation, unemployment, disability, property, ad valorem, stamp, excise,
severance, occupation, service, sales, use, license, lease, transfer, import,
export, value added, alternative minimum, estimated or other similar tax
(including any fee, assessment, or other charge in the nature of or in lieu of
any tax) imposed by any governmental entity or political subdivision thereof,
and any interest, penalties, additions to tax, or additional amounts in respect
of the foregoing.

      "TAX AUTHORITY" means, with respect to any Tax, the governmental entity or
political subdivision thereof that imposes such Tax, and the agency (if any)
charged with the collection of such Tax for such entity or political
subdivision.

      "TAX BENEFIT" means any refund of, credit against, or other reduction in
otherwise required Tax payments (including any reduction in estimated tax
payments) and any interest in

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respect of the foregoing, net of the effect on otherwise required Tax payments
of any associated or corresponding item of income or gain, or other increase in
otherwise required Tax payments.

      "TAX CONTEST" means an audit, review, examination, or any other
administrative or judicial proceeding with the purpose or effect of
redetermining Taxes of any of the Companies or their Affiliates (including any
administrative or judicial review of any claim for refund).

      "TAX ITEM" means, with respect to any Income Tax, any item of income,
gain, loss, deduction, or credit or other item that has the effect of increasing
or decreasing the amount of any Income Tax payable.

      "TAX LAW" means the law of any governmental entity or political
subdivision thereof relating to any Tax.

      "TAX OPINION" means the opinion of counsel selected by ICN, in its sole
discretion, confirming in form and substance reasonably satisfactory to ICN,
that no income, gain or loss for U.S. federal income tax purposes will be
recognized by ICN, the stockholders or former stockholders of ICN, or any ICN
Affiliate with respect to the Distribution, and following the receipt of which
ICN may, pursuant to Section 3.1 of the Affiliation and Distribution Agreement,
complete the Distribution.

      "TAX OPINION SUBMISSION" means any and all information, including any
representation or material fact, submitted to counsel in connection with the Tax
Opinion.

      "TAX PERIOD" means, with respect to any Tax, the period for which the Tax
is reported as provided under the Code or other applicable Tax Law.

      "TAX RECORDS" means Tax Returns, Tax Return workpapers, documentation
relating to any Tax Contest, and any other books of account or records required
to be maintained under the Code or other applicable Tax Laws or under any record
retention agreement with any Tax Authority.

      "TAX RETURN" means any report of Taxes due (including any report of
estimated tax payments), any claims for refund of Taxes paid, any information
return with respect to Taxes, or

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any other similar report, statement, declaration, or document required to be
filed under the Code or other Tax Law, including any attachments, exhibits, or
other materials submitted with any of the foregoing, and including any
amendments or supplements to any of the foregoing.

      "TRANSACTIONS" means the transactions contemplated by the Affiliation and
Distribution Agreement, including the Contribution, the Initial Public Offering
and the Distribution.

      "TREASURY REGULATIONS" means the regulations promulgated from time to time
under the Code as in effect for the relevant Tax Period.

SECTION 2. ALLOCATION OF INCOME TAX LIABILITIES.

      2.1. General Rule

      (a) ICN Liability. ICN shall indemnify and hold harmless the RIBAPHARM
Group from and against any liability for Taxes for which ICN is liable under
this Section 2.

      (b) RIBAPHARM Liability. RIBAPHARM shall indemnify and hold harmless the
ICN Group other than members of the RIBAPHARM Group from and against any
liability for Taxes for which RIBAPHARM is liable under this Section 2.

      2.2 Federal Income Tax. Except as otherwise provided in this Agreement,
Federal Income Tax liability shall be allocated as follows:

            (a) Consolidated Period. For each Consolidated Period, RIBAPHARM
shall be liable for and pay to ICN an amount equal to the Federal Income Tax
determined under the "Stand Alone Method." Under this method RIBAPHARM's
liability for Tax for any Taxable Period is computed as if, since the
Contribution Date, RIBAPHARM had (i) never been part of the ICN Group and (ii)
filed a consolidated Federal Income Tax Return as parent of the RIBAPHARM Group
with each eligible member of that Group; provided, however, that the provisions
of Section 2.6(a) regarding special rules for application of the Stand Alone
Method shall apply. ICN shall be liable for all Federal Income Tax for the
Consolidated Period other than amounts for which RIBAPHARM is liable pursuant to
this Section 2.2(a).

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            (b) Non-Consolidated Periods. With respect to all periods which are
not Consolidated Periods, RIBAPHARM shall be responsible for all Federal Income
Tax imposed on members of the RIBAPHARM Group, and ICN shall be responsible for
all Federal Income Tax imposed on members of the ICN Group.

      2.3. State and Foreign Income Taxes. Except as otherwise provided in this
Agreement, State and Foreign Income Tax liability shall be allocated as follows:

            (a) Consolidated or Combined State and Foreign Income Taxes.
RIBAPHARM shall be liable for and pay to ICN any State or Foreign Income Tax
with respect to any Consolidated or Combined State or Foreign Income Tax Return
in an amount that is equal to the amount determined under the Stand Alone Method
for the period covered by such Tax Return; provided, however, that RIBAPHARM's
State Income Tax liability shall be calculated taking into account ICN's
worldwide apportionment schedule, where applicable. ICN shall be liable for and
pay any State or Foreign Income Tax with respect to any Consolidated or Combined
State or Foreign Income Tax Return other than the amount for which RIBAPHARM is
liable pursuant to this Section 2.3(a).

            (b) Separate Company Taxes. In the case of any State or Foreign
Income Tax which is a Separate Company Tax, RIBAPHARM shall be liable for and
shall pay any such Separate Company Tax imposed under Tax Law on any member of
the RIBAPHARM Group and ICN shall be liable for and shall pay any such Separate
Company Tax imposed on any member of the ICN Group other than a member of the
RIBAPHARM Group.

      2.4 Other Taxes. Except as otherwise provided in this Agreement, RIBAPHARM
shall be liable to and pay the applicable Tax Authority any Other Tax that is
imposed on any member of the RIBAPHARM Group and ICN shall be liable to and pay
the applicable Tax Authority any Other Tax that is imposed on any member of the
ICN Group other than a member of the RIBAPHARM Group.

      2.5. Transaction Taxes.

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            (a) General. Except as otherwise provided in this Section 2.5, ICN
shall be responsible for and pay, and shall indemnify and hold harmless the
RIBAPHARM Group from and against any liability for, any and all Taxes resulting
from the Transactions. This shall include but not be limited to (i) any sales
and use, gross receipts, or other transfer Taxes imposed on the transfers
occurring pursuant to the Transactions; (ii) any Tax resulting from any income
or gain recognized under Treasury Regulation Sections 1.1502-13 or 1.1502-19 (or
any corresponding provisions of other applicable Tax Laws) as a result of the
Transactions; and (iii) , except as otherwise provided in Section 2.5(b), any
Tax resulting from any income or gain recognized as a result of any of the
Transactions failing to qualify for tax-free treatment under Code Sections 332,
351, 355, 361, or other provisions of the Code (as contemplated in the IRS
Private Letter Ruling or the Tax Opinion) or corresponding provisions of other
applicable Tax Laws.

            (b) Inconsistent Acts and Events. Notwithstanding the provisions of
Section 2.5(a), RIBAPHARM shall be liable for, and shall indemnify and hold
harmless ICN from and against any liability for, any Restructuring Tax to the
extent arising from (i) any breach by RIBAPHARM of the representations or
covenants under Section 9, (ii) any Tainting Act performed by RIBAPHARM, (iii)
the inaccuracy of any factual statements or representations made by RIBAPHARM to
ICN or to the IRS in connection with the IRS Private Letter Ruling or the Tax
Opinion, but only to the extent such inaccuracy arises from facts in existence
prior to the Distribution Date or (iv) any Section 355(e) Event with respect to
RIBAPHARM. A Section 355(e) Event with respect to RIBAPHARM will occur if
Section 355(e) of the Code applies to the Distribution as a result of one or
more persons acquiring directly or indirectly stock of RIBAPHARM representing a
50% or greater interest in RIBAPHARM within the meaning of Section 355(e).

      2.6. Calculation of Tax Liability.

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            (a) Stand Alone Method. The following rules shall apply for purposes
of computing RIBAPHARM's liability under the Stand Alone Method: (i)
transactions during any Consolidated Period between a member of the RIBAPHARM
Group and a member of the ICN Group that is not a member of the RIBAPHARM Group
shall, for Federal Income Tax purposes, be accounted for pursuant to the
provisions of the regulations under IRC Section 1502 that govern intercompany
transactions (and to the extent appropriate for State or Foreign Income Tax
purposes, similar rules shall apply in the case of transactions between such
members which are included in State or Foreign Consolidated or Combined Income
Tax Returns); (ii) during Consolidated Periods all computations shall be made in
conformity with the positions, elections and accounting methods used by ICN in
preparing the consolidated returns of the ICN Group; (iii) the highest marginal
tax rate to which the RIBAPHARM Group could be subject under applicable Tax Law
shall be deemed to be the only Tax rate to which such group is subject under
such law; and (iv) subject to (i) through (iii) above, all computations and
other determinations shall be made in accordance with the the laws and
regulations applying to affiliated groups filing consolidated returns
(including, in the case of any company that becomes or ceases to be a member of
any Group, the laws and regulations applicable to a company that becomes or
ceases to be a member of a such Group), as well as all other relevant federal
Tax laws and regulations (and similar rules shall apply in the case of State or
Foreign Taxes in respect to Consolidated or Combined Returns for such Taxes).

            (b) The principles of Treasury Regulation Section 1.1502-76(b) as
reasonably interpreted, agreed and applied by the Companies shall apply in
determining whether a Tax Item is attributable to a Tax Period provided that (x)
no election shall be made under Treasury Regulation Section 1.1502-76(b)(2)(ii)
(relating to ratable allocation of a year's items) and (y) if the Distribution
Date is not an Accounting Cutoff Date, the provisions of Treasury Regulation
Section 1.1502-76(b)(2)(iii) will be applied to ratably allocate the items
(other than extraordinary items) for the month which includes the Distribution
Date.

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            (c) In determining the apportionment of Tax Items between
Pre-Distribution Periods and Post-Distribution Periods, any Tax Items relating
to the Transactions shall be treated as an extraordinary item described in
Treasury Regulation Section 1.1502-76(b)(2)(ii)(C) and shall be allocated to
Pre-Distribution Periods, and any Taxes related to such items shall be treated
under Treasury Regulation Section 1.1502-76(b)(2)(iv) as relating to such
extraordinary item and shall be allocated to Pre-Distribution Periods.

      2.7. Tax Payments and Intercompany Billings. Each Company shall pay the
Taxes allocated to it by this Section 2 either to the applicable Taxing
Authority or to the other Company in accordance with Section 5.

SECTION 3. PREPARATION AND FILING OF TAX RETURNS.

      3.1. General. Except as otherwise provided in this Section 3, Tax Returns
shall be prepared and filed when due (including extensions) by the person
obligated to file such Tax Returns under the Code or applicable Tax Law. The
Companies shall provide, and shall cause their Affiliates to provide, assistance
and shall cooperate with one another in accordance with Section 6 with respect
to the preparation and filing of Tax Returns, including providing information
required to be provided in Section 6.

      3.2. Pre-Distribution Period and Straddle Period Tax Returns. All Tax
Returns required to be filed for Pre-Distribution Periods or Straddle Periods,
shall be:

            (1) prepared and filed by ICN, in the case of any Consolidated or
Combined Income Tax Return; and

            (2) in all other cases, prepared and filed, or caused to be prepared
and filed, by the Company to which such Tax Return relates.

      RIBAPHARM shall, for each Tax Period or portion thereof for which
RIBAPHARM or a member of the RIBAPHARM Group is included in a Tax Return
described in clause (1) of the preceding sentence, provide ICN with (i) a true
and correct pro forma tax return for the

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RIBAPHARM Group together with an accompanying computation of Tax liability of
the Group prepared in accordance with the Stand Alone Method, (ii) separate pro
forma tax returns for each member of the RIBAPHARM Group together with
accompanying computations of the separate tax return Tax liabilities of each
member of the Group, and (iii) a reconciliation of book income to federal
taxable income for each member of the RIBAPHARM Group. RIBAPHARM hereby agrees
to use its best efforts to provide ICN with such returns and computations no
later than the first day of the sixth month following the end of the period to
which such returns and computations relate, but in any event shall provide such
returns and computations to ICN no later than the fifteenth day of the sixth
month following the end of the period to which such returns and computations
relate. RIBAPHARM, in preparing the above mentioned pro forma tax returns for
its Group, shall not consider or give effect to any (i) net operating loss
carryover or carryback, (ii) capital loss carryover or carryback, (iii) excess
charitable deduction carryover, (iv) excess tax carryover or carryback, or (v)
other similar carryback or carryback item.

      3.3. Post-Distribution Period Tax Returns. Except as otherwise provided in
Section 3.2 with respect to Straddle Period Tax Returns:

            (1) All Tax Returns related exclusively to RIBAPHARM or to a member
of the RIBAPHARM Group for Post-Distribution Periods shall be prepared and filed
(or caused to be prepared and filed) by RIBAPHARM,

            (2) All Tax Returns related exclusively to ICN or to a member of the
ICN Group, excluding for this purpose RIBAPHARM or members of the RIBAPHARM
Group, for Post-Distribution Periods shall be prepared and filed (or caused to
be prepared and filed) by ICN.

      3.4. Tax Accounting Practices.

            (a) General Rule. Except as otherwise provided in this Section 3.4,
any Tax Return for any Pre-Distribution Period or any Straddle Period, and any
Tax Return for any Post-Distribution Period to the extent items reported on such
Tax Return might reasonably affect items reported on any Tax Return for any
Pre-Distribution Period or any Straddle Period, shall be

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prepared in accordance with past Tax accounting practices used with respect to
the Tax Returns in question (unless such past practices are no longer
permissible under the Code or other applicable Tax Law), and to the extent any
items are not covered by past practices (or in the event such past practices are
not longer permissible under the Code or other applicable Tax Law), in
accordance with reasonable Tax accounting practice selected by the Responsible
Company.

            (b) Reporting of Transaction Tax Items. The tax treatment reported
on any Tax Return of Tax Items relating to the Transaction shall be consistent
with the treatment of such item in the IRS Private Letter Ruling or the Tax
Opinion. To the extent there is a Tax Item relating to the Transactions which is
not covered by the IRS Private Letter Ruling or the Tax Opinion, the tax
treatment of such Tax Items on a Tax Return shall be determined by the
Responsible Company with respect to such Tax Return, provided (i) there is
substantial authority for such tax treatment, and (ii) such tax treatment is not
inconsistent with the tax treatment contemplated in the IRS Private Letter
Ruling or the Tax Opinion. Such Tax Return shall be submitted for review
pursuant to Section 3.5(a), and any dispute regarding such proper tax treatment
shall be referred for resolution pursuant to Section 13 sufficiently in advance
of the filing date of such Tax Return (including extensions) to permit timely
filing of the return.

      3.5. Right to Review Tax Returns.

            (a) General. The Responsible Company with respect to any Tax Return
shall make such Tax Return and related Tax Records available for review by the
other Company, if requested, to the extent (i) such Tax Return relates to Taxes
for which the requesting party may be liable, (ii) such Tax Return relates to
Taxes for which the requesting party may be liable in whole or in part for any
additional Taxes owing as a result of adjustments to the amount of Taxes
reported on such Tax Return, (iii) such Tax Return relates to Taxes for which
the requesting party may have a claim for Tax Benefits under this Agreement, or
(iv) the requesting party reasonably determines that it must inspect such Tax
Return to confirm compliance with the terms

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of this Agreement. The Responsible Company shall use its reasonable best efforts
to make such Tax Return and Tax Records available for review as required under
this paragraph sufficiently in advance of the due date for filing such Tax
Returns to provide the requesting party with a meaningful opportunity to analyze
and comment on such Tax Returns and have such Tax Returns modified before
filing, taking into account the person responsible for payment of the Tax (if
any) reported on such Tax Return and the materiality of the amount of Tax
liability with respect to such Tax Return. The Companies shall attempt in good
faith to resolve any issues arising out of the review of such Tax Returns or Tax
Records.

            (b) Execution of Returns Prepared by Other Party. In the case of any
Tax Return which is required to be prepared and filed by one Company under this
Agreement and which is required by law to be signed by another Company (or by
its authorized representative), the Company that is legally required to sign
such Tax Return shall not be required to sign such Tax Return under this
Agreement if there is not substantial authority for the tax treatment of any
material items reported on the Tax Return. Any such Tax Return shall be supplied
by the Company responsible for its preparation and filing to the Company
responsible for its signing at least five days prior to the due date of such Tax
Return (including applicable extensions) and such signing Company shall deliver
an executed copy of such Tax Return to the filing Company at least two days
prior to the due date of such Tax Return (including applicable extensions).

SECTION 4. REFUNDS, CARRYBACKS AND TAX BENEFITS.

      4.1. Compensation for Use of RIBAPHARM Consolidated Period Tax Items. In
the event that (i) the ICN Group realizes an actual Tax Benefit during any
Consolidated Period as a result of the use by members of the ICN Group (other
than members of the RIBAPHARM Group) of Tax Items of the RIBAPHARM Group and
(ii) as a result of such use the Federal Income Tax liability of the RIBAPHARM
Group for any period which is not a Consolidated Period is greater than the
amount of such liability computed under the Stand Alone Method (but

                                                       ICN Tax Sharing Agreement

                                      -15-
<PAGE>
without regard to clauses (iii) and (iv) of Section 2.6(a)), then ICN will pay
to RIBAPHARM, in accordance with Section 5.7, an amount equal to the lesser of
(x) the excess of the Tax Benefit actually realized by ICN referred to in clause
(i) over the amount of any prior payments to RIBAPHARM pursuant to this Section
4.1 in respect of that Tax Benefit and (y) the excess referred to in clause (ii)
for such non-Consolidated Period.

      4.2. Claims for Refund, Carrybacks, and Self-Audit Adjustments
("Adjustment Requests").

            (a) Consent Required for Adjustment Requests Related to Consolidated
or Combined Income Tax Returns. Except as provided in paragraph (b) below, each
of the Companies hereby agrees that, unless the other Company consents in
writing, which consent shall not be unreasonably delayed or withheld, no
Adjustment Request shall be filed with respect to any Consolidated or Combined
Tax Return that included the RIBAPHARM Group for a Pre-Distribution Period and
affects the RIBAPHARM Group Tax liability. Any Adjustment Request which the
Companies consent to make under this Section 4.2 shall be prepared and filed by
the Responsible Company under Sections 3.2 and 3.3 for the Tax Return to be
adjusted. The Company requesting the Adjustment Request, if other than the
Responsible Company, shall provide to the Responsible Company all information
required for the preparation and filing of such Adjustment Request in such form
and detail as reasonably requested by the Responsible Company.

            (b) Exception for Adjustment Requests Related to Audit Adjustments.
Each Company shall be entitled, without the consent of the other Company, to
require ICN to file an Adjustment Request to take into account any net operating
loss, net capital loss, deduction, credit, or other adjustment attributable to
such Company or any member of its Group corresponding to any adjustment
resulting from any audit by the Internal Revenue Service or other Tax Authority
with respect to Consolidated or Combined Income Tax Returns for any
Pre-Distribution Period.

                                                       ICN Tax Sharing Agreement

                                      -16-
<PAGE>
            (c) Other Adjustment Requests Permitted. Nothing in this Section 4.2
shall prevent any Company or its Affiliates from filing any Adjustment Request
with respect to Tax Returns which are not Consolidated or Combined Income Tax
Returns or with respect to any Other Taxes; provided, however, that neither
Company shall file an amended Tax Return with respect to Separate Company or
Other Taxes for which the other Company is liable under this Agreement without
the written consent of such other Company (which consent shall not be
unreasonably withheld). If any refund or credit is obtained as a result of any
such Adjustment Request (or otherwise), the parties shall recalculate the
amounts that would have been paid under this Agreement based on the changes
resulting in such refund or credit, and shall make such payments between them as
necessary to place each in the position it would have been in had the payments
made under this Agreement originally been made based on such changes.

            (d) Payment of Refunds and other Tax Benefits. Except as set forth
in Section 4.2(e), any refunds or other Tax Benefits received by either Company
(or any of its Affiliates) as a result of any Adjustment Request which are for
the account of the other Company (or member of such other Company's Group) shall
be paid by the Company receiving (or whose Affiliate received) such refund or
Tax Benefit to such other Company in accordance with Section 5.

            (e) Ordering of and Payment for Carrybacks.

                  (i) In the event that a member of the ICN Group other than a
member of the RIBAPHARM Group, on the one hand, and a member of the RIBAPHARM
Group, on the other hand, are each entitled to carryback a Tax Item to a
Pre-Distribution Period, the respective Tax Items shall be used under the rules
of applicable Tax Law (which shall be, in the case of Carrybacks to such Tax
Periods of the affiliated group of which ICN is the common parent, the rules
contained in Treasury Regulation Section 1.1502-21).

                  (ii) Any Tax refund or other Tax Benefit resulting from the
Carryback of any member of one Group (the "Carryback Group") of any Tax Item
arising after the Distribution Date to a Pre-Distribution Period shall be for
the account of the Carryback Group

                                                       ICN Tax Sharing Agreement

                                      -17-
<PAGE>
(and in the event RIBAPHARM Group is the Carryback Group, then upon receipt of
the Tax refund or other Tax Benefit, ICN shall pay to RIBAPHARM the amount of
such Tax refund or other Tax Benefit); provided, however, that if at the time of
the use of the Carryback Items of a member of the Carryback Group, a member of
the other Group (the "Other Group") possesses Carryback Tax Items which, but for
the ordering rule set forth in (i) above, would have been available to be used
(the "Other Group Carryback") in lieu of the Carryback Group's Tax Items, then
(but only to the extent of the Other Group Carryback) the Carryback Group shall
not be entitled to payment of the amount of such Tax refund or Tax Benefit until
the earlier of (X) the date on which a member of the Other Group claims the
Other Group Carryback on a Tax Return or (Y) the date on which a member of the
Carryback Group would have been able to use the Carryback had it not been
claimed with respect to the Pre-Distribution Period Tax Return.

                  (iii) In the event the Carryback of Tax Items of a member of
the ICN Group other than a member of the RIBAPHARM Group, or a member of the
RIBAPHARM Group, as the case may be, does not result in a Tax refund, due to an
offsetting Tax adjustment to a member of the Other Group, then the Other Group
shall promptly pay the amount of any decrease in Tax liability resulting from
the Carryback claim, provided, however, that in the event the Other Group
possesses Carryback Items which, but for the ordering rules set forth in (i)
above would have been available to be used in lieu of the Carryback Group's
Items, then (but only to the extent of the Other Group Carryback), the Other
Group shall not be required to pay the amount of such decrease in Tax liability
to the Carryback Group until the earlier of (X) the date on which a member of
the Other Group claims the Other Group Carryback on a Tax Return or (Y) the date
on which a member of the Carryback Group would have been able to utilize the
Carryback had it not been claimed with respect to the Pre-Distribution Period
Tax Return.

         4.3. Adjustment of Tax Items. In the event that the Carryback of Tax
Items of one Group, or a Tax adjustment attributable to such Group under the
terms of this Agreement, results in the disallowance or limitation of Tax Items
claimed on the Tax Return as filed, the Carryback

                                     - 18 -            ICN Tax Sharing Agreement
<PAGE>
Group shall be responsible for any increase in Tax liability resulting from the
disallowance or limitation of Tax attributes; provided, however, that in the
event the disallowance or limitation of Tax attributes results in a Tax Benefit
resulting from the use of such Tax attributes in another Tax Period, such Tax
Benefit shall be deemed to be for the account of the Carryback Group for such
purposes of this Agreement.

         4.4. Adjustments on Audit. If, upon examination by any Tax Authority of
any Tax Return including a member of the ICN Group or RIBAPHARM Group for any
Tax Period, any item of deduction, credit or expense is disallowed for which ICN
is or may be liable for Taxes hereunder (or an item of income is required to be
recognized on a Tax Return which was not reported on such Tax Return), in either
such case resulting in a tax detriment suffered by the ICN Group, and such
disallowance (or recognition) results in a Tax Benefit to the RIBAPHARM Group
(with respect to that Tax Period or another Tax Period), then RIBAPHARM shall
pay to ICN the amount of such Tax Benefit that is realized in the form of an
actual reduction in Tax (which shall be computed by comparing the Tax which
would have been owed by RIBAPHARM but for the item giving rise to the Tax
Benefit with the Tax owed by RIBAPHARM taking such item into account) provided,
however, that in no case will the amount that RIBAPHARM is required to pay to
ICN with respect to such Tax Benefit exceed the corresponding tax detriment to
ICN (reduced by payments previously made by RIBAPHARM to ICN with respect to
such Tax Benefit). Any payment required to be made hereunder shall be made in
accordance with Section 5.10. The provisions of this Section 4.4 shall apply
mutatis mutandis where an item of deduction, credit or expense is disallowed for
which RIBAPHARM is or may be liable for Taxes hereunder (or any item of income
is required to be recognized on a Tax Return which was not reported on such Tax
Return), as they apply where the ICN Group suffers such a detriment. For
avoidance of doubt, any payment required to be made by ICN to the RIBAPHARM
Group under this Section 4.4 shall, to the extent applicable, be deemed as an
offset to amounts owing by RIBAPHARM to ICN under Section 2.2 hereof.

                                     - 19 -            ICN Tax Sharing Agreement
<PAGE>
SECTION 5.  TAX PAYMENTS AND INTERCOMPANY BILLINGS.

         5.1.     Payment of Taxes With Respect to ICN Federal Consolidated
                  Returns. In the case of any ICN Federal Consolidated Return -

                  (a) Computation and Payment of Tax Due. Unless otherwise
agreed to by the Companies, at least five business days prior to any Payment
Date, ICN shall compute the amount of Tax required to be paid to the Internal
Revenue Service (taking into account the requirements of Section 3.4 relating to
consistent accounting practices) with respect to such Tax Return on such Payment
Date and shall notify RIBAPHARM in writing of the amount of Tax required to be
paid on such Payment Date. ICN will pay such amount to the Internal Revenue
Service on or before such Payment Date.

                  (b) Computation and Payment of RIBAPHARM Liability With
Respect to Tax Due. Within 30 days following any Payment Date, RIBAPHARM will
pay to ICN the excess (if any) of

                           (i) the amount of liability determined as of such
Payment Date with respect to the applicable Tax Period allocable to RIBAPHARM in
a manner consistent with the provisions of Section 2.2, over

                           (ii) the amount equal to the cumulative net payments
with respect to such Tax Return prior to such Payment Date made by RIBAPHARM or
members of its Group. If the amount in clause (ii) above is greater than the
amount in clause (i) above as of any Payment Date, then ICN shall pay such
excess to RIBAPHARM within 30 days following the Payment Date.

                  (c) Interest on Intergroup Tax Allocation Payments. In the
case of any payments to ICN required under paragraph (b) of this Section 5.1,
RIBAPHARM shall also pay to ICN an amount of interest computed at the Prime Rate
on the amount of the payment required based on the number of days from the
applicable Payment Date until the date of RIBAPHARM's

                                     - 20 -            ICN Tax Sharing Agreement
<PAGE>
subsequent payment. In the case of any payments by ICN required under paragraph
(b) of this Section 5.1, ICN shall also pay to RIBAPHARM an amount of interest
computed at the Prime Rate on the amount of the payment required based on the
number of days from the applicable Payment Date until the date of ICN's
subsequent payment of such amount to RIBAPHARM.

         5.2. Payment of Federal Income Tax Related to Adjustments.

                  (a) Adjustments Resulting in Underpayments. ICN shall pay to
the Internal Revenue Service when due any additional Federal Income Tax required
to be paid as a result of any adjustment to the tax liability with respect to
any ICN Federal Consolidated Return. RIBAPHARM shall pay to ICN an amount that
is allocable to RIBAPHARM under Section 2.2 within 30 days from the later of (i)
the date the additional Tax was paid by ICN or (ii) the date of receipt by
RIBAPHARM of a written notice and demand from ICN for payment of the amount due,
accompanied by evidence of payment and a statement detailing the Taxes paid and
describing in reasonable detail the particulars relating thereto. Any payments
required under this Section 5.2 (a) shall include interest computed at the Prime
Rate based on the number of days from the date the additional Tax was paid by
ICN to the date of the payment under this Section 5.2(a).

                  (b) Adjustments Resulting in Overpayments. Within 30 days of
receipt by ICN of any Tax Benefit resulting from any adjustment to the tax
liability with respect to any ICN Federal Consolidated Return, ICN shall pay to
RIBAPHARM its share of any such Tax Benefit, as determined in accordance with
the principles of Sections 2.2 and 4. Any payments required under this Section
5.2(b) shall include interest computed at the Prime Rate based on the number of
days from the date the Tax Benefit was received by ICN to the date of payment to
RIBAPHARM under this Section 5.2(b).

         5.3. Payment of State Income Tax Relating to Pre-Distribution Periods.

                  (a) Computation and Payment of Tax Due. Unless otherwise
agreed to by the Companies, at least five business days prior to any Payment
Date for any Tax Return with

                                     - 21 -            ICN Tax Sharing Agreement
<PAGE>
respect to any State Income Tax relating to a Pre-Distribution Period, the
Responsible Company shall compute the amount of Tax required to be paid to the
applicable Tax Authority (taking into account the requirements of Section 3.4
relating to consistent accounting practices) with respect to such Tax Return on
such Payment Date and --

                           (i) If such Tax Return is with respect to a
Consolidated or Combined State Income Tax, the Responsible Company shall, if ICN
is not the Responsible Company with respect to such Tax Return, notify ICN in
writing of the amount of Tax required to be paid on such Payment Date. ICN will
pay such amount to such Tax Authority on or before such Payment Date.

                           (ii) If such Tax Return is with respect to a Separate
Company Tax, the Responsible Company shall, if it is not the Company liable for
the Tax reported on such Tax Return, notify the Company liable for such Tax in
writing of the amount of Tax required to be paid on such Payment Date. The
Company liable for such Tax will pay such amount to such Tax Authority on or
before such Payment Date.

                  (b) Computation and Payment of RIBAPHARM Liability With
Respect to Tax Due. Within 30 days following the due date (including extensions)
for filing any Tax Return for any Consolidated or Combined State Income Tax
(excluding any Tax Return with respect to payment of estimated Taxes or Taxes
due with a request for extension of time to file) relating to a Pre-Distribution
Period, RIBAPHARM shall pay to ICN the Tax liability allocable to RIBAPHARM as
determined by ICN under the provisions of Sections 2.3 and 4 (and following the
procedures described in Section 5.2(a)), plus interest computed at the Prime
Rate on the amount of the payment based on the number of days from the due date
(including extensions) to the date of payment by RIBAPHARM to ICN.

         5.4. Payment of State Income Taxes Related to Adjustments.

                  (a) Adjustments Resulting in Underpayments. ICN shall pay to
the applicable Tax Authority when due any additional State Income Tax required
to be paid as a result of any

                                     - 22 -            ICN Tax Sharing Agreement
<PAGE>
adjustment to the Tax liability with respect to any Tax Return for any
Consolidated or Combined State Income Tax for any Pre-Distribution Period.
RIBAPHARM shall pay to ICN its respective share of any such additional Tax
payment determined in accordance with Sections 2.3 and 4 within 30 days from the
later of (i) the date the additional Tax was paid by ICN or (ii) the date of
receipt by RIBAPHARM of a written notice and demand from ICN for payment of the
amount due, accompanied by evidence of payment and a statement detailing the
Taxes paid and describing in reasonable detail the particulars relating thereto.
RIBAPHARM shall also pay to ICN interest on its respective share of such Tax
computed at the Prime Rate based on the number of days from the date the
additional Tax was paid by ICN to the date of its payment to ICN under this
Section 5.4(a).

                  (b) Adjustments Resulting in Overpayments. Within 30 days of
receipt by ICN of any Tax Benefit resulting from any adjustment to the Tax
liability with respect to any Tax Return for any Consolidated or Combined State
Income Tax for any Pre-Distribution Period, ICN shall pay to RIBAPHARM its share
of any such Tax Benefit determined in accordance with the principles of Sections
2.3 and 4. Any payments required under this Section 5.4(b) shall include
interest computed at the Prime Rate based on the number of days from the date
the Tax Benefit was received by ICN to the date of payment under this Section
5.4(b).

         5.5. Payment of Separate Company Taxes and Other Taxes. Each Company
shall pay, or shall cause to be paid, to the applicable Tax Authority when due
all Separate Company Taxes and Other Taxes owed by such Company or a member of
such Company's Group.

         5.6. Indemnification Payments. If any Company (the "payor") is required
to pay to a Tax Authority a Tax that another Company (the "responsible party")
is required to pay to such Taxing Authority under this Agreement, the
responsible party shall reimburse the payor within 30 days of delivery by the
payor to the responsible party of an invoice for the amount due, accompanied by
evidence of payment and a statement detailing the Taxes paid and describing in
reasonable detail the particulars relating thereto. The reimbursement shall
include interest on the

                                     - 23 -            ICN Tax Sharing Agreement
<PAGE>
Tax payment computed at the Prime Rate based on the number of days from the date
of the payment to the Tax Authority to the date of reimbursement under this
Section 5.6.

         5.7. Compensation for use of RIBAPHARM Consolidated Period Tax Items.
In the event ICN is required to pay RIBAPHARM in accordance with Section 4.1,
RIBAPHARM shall deliver to ICN an invoice stating the amount due to RIBAPHARM,
accompanied by a reasonably detailed calculation of that amount, as prescribed
by section 4.1. ICN shall pay RIBAPHARM within 30 days from the due date
(including any extensions) for the Tax Return filed by RIBAPHARM with respect to
such amount, including interest computed at the Prime Rate based on the number
of days from such due date to the date ICN pays RIBAPHARM.

         5.8. Payment of Refunds and Other Tax Benefits.

                  (a) Except as otherwise provided in this Agreement, if a
member of one Group receives a Tax refund or other Tax Benefit with respect to
Taxes for which a member of the other Group is liable hereunder, the Company
receiving such Tax refund or other Tax Benefit shall make a payment to the
Company who is liable for such Taxes hereunder within 30 days following the
receipt of the Tax refund or other Tax Benefit in an amount equal to such Tax
refund or other Tax Benefit, plus interest on such amount computed at the Prime
Rate based on the number of days from the date of receipt of the Tax refund or
other Tax Benefit to the date of payment under this Section 5.8.

                  (b) In the event one Group is reimbursed for its payment of a
Tax liability of the other Group, the amount of such reimbursement shall be
computed net of any Tax Benefit realized by the reimbursed Group as the result
of payment of the other Group's Tax liability.

         5.9. Payment for Carrybacks. Each Company shall pay the other Company
for Carrybacks in accordance with Section 4.2(e). Any such payment shall include
interest at the Prime Rate based on the number of days from the date Company is
required to make the payment under Section 4.2(e) to the date the Company
actually makes the payment.

                                     - 24 -            ICN Tax Sharing Agreement
<PAGE>
         5.10. Payment for Adjustments on Audit. Any payment required under
Section 4.4 shall be made within 30 days of the due date (including any
extensions) of the Tax Return on which the Tax Benefit described in that section
is claimed. Such payment shall include interest computed at the Prime Rate based
on the number of days from such due date to the date the payment is made.

SECTION 6.  ASSISTANCE AND COOPERATION.

         6.1. General. Each of the Companies shall cooperate (and cause their
respective Affiliates to cooperate) with each other and with each other's
agents, including accounting firms and legal counsel, in connection with Tax
matters relating to the Companies and their Affiliates including (i) preparation
and filing of Tax Returns, (ii) determining the liability for and amount of any
Taxes due (including estimated Taxes) or the right to and amount of any refund
of Taxes, (iii) examinations of Tax Returns, and (iv) any administrative or
judicial proceeding in respect of Taxes assessed or proposed to be assessed.
Such cooperation shall include making all information and documents in their
possession relating to the other Companies and their Affiliates available to
such other Companies as provided in Section 7. Each of the Companies shall also
make available to each other, as reasonably requested and available, personnel
(including officers, directors, employees and agents of the Companies or their
respective Affiliates) responsible for preparing, maintaining, and interpreting
information and documents relevant to Taxes, and personnel reasonably required
as witnesses or for purposes of providing information or documents in connection
with any administrative or judicial proceedings relating to Taxes. Any
information or documents provided under this Section 6 shall be kept
confidential by the Company receiving the information or documents, except as
may otherwise be necessary in connection with the filing of Tax Returns or in
connection with any administrative or judicial proceedings relating to Taxes.

                                     - 25 -            ICN Tax Sharing Agreement
<PAGE>
         6.2. Income Tax Return Information. Each Company will provide to each
other Company information and documents relating to their respective Groups
required by the other Companies to prepare Tax Returns. The Responsible Company
shall determine a reasonable compliance schedule for such purpose in accordance
with past practices. Any additional information or documents the Responsible
Company requires to prepare such Tax Returns will be provided in accordance with
past practices, if any, or as the Responsible Company reasonably requests and in
sufficient time for the Responsible Company to file such Tax Returns timely.

SECTION 7.  TAX RECORDS.

         7.1. Retention of Tax Records. Except as provided in Section 7.2, each
Company shall preserve and keep all Tax Records exclusively relating to the
assets and activities of their respective Groups for Pre-Distribution Tax
Periods, and ICN shall preserve and keep all other Tax Records relating to Taxes
of the Groups for Pre-Distribution Tax Periods, for so long as the contents
thereof may become material in the administration of any matter under the Code
or other applicable Tax Law, but in any event until the later of (i) the
expiration of any applicable statutes of limitation, as extended, and (ii) seven
years after the Distribution Date. Prior to disposing of any Tax Records which
it is required to preserve and keep under this Section 7, a Company shall
provide 90-days written notice to the other Company. Such notice shall include a
list of the records to be disposed of describing in reasonable detail each file,
book, or other record accumulation being disposed of. The notified Company shall
have the opportunity, at its cost and expense, to copy or remove, within such
90-day period, all or any part of such Tax Records.

         7.2. State Income Tax Returns. Tax Returns with respect to State Income
Taxes and workpapers prepared in connection with preparing such Tax Returns
shall be preserved and kept, and disposed of, in accordance with the guidelines
of Section 7.1, by the Company responsible for preparing and filing the
applicable Tax Return.

                                     - 26 -            ICN Tax Sharing Agreement
<PAGE>
         7.3. Access to Tax Records. The Companies and their respective
Affiliates shall make available to each other for inspection and copying during
normal business hours upon reasonable notice all Tax Records in their possession
to the extent reasonably requested by the other Company in connection with the
preparation of Tax Returns, audits, litigation, or the resolution of items under
this Agreement.

SECTION 8.  TAX CONTESTS.

         8.1. Notice. Each of the parties shall provide prompt notice to the
other party of any pending or threatened Tax audit, assessment or proceeding or
other Tax Contest of which it becomes aware related to Taxes for Tax Periods for
which it is indemnified by the other party hereunder. Such notice shall contain
factual information (to the extent known) describing any asserted Tax liability
in reasonable detail and shall be accompanied by copies of any notice and other
documents received from any Tax Authority in respect of any such matters. If an
indemnified party has knowledge of an asserted Tax liability with respect to a
matter for which it is to be indemnified hereunder and such party fails to give
the indemnifying party prompt notice of such asserted Tax liability, then (i) if
the indemnifying party is precluded from contesting the asserted Tax liability
in any forum as a result of the failure to give prompt notice, the indemnifying
party shall have no obligation to indemnify the indemnified party for any Taxes
arising out of such asserted Tax liability, and (ii) if the indemnifying party
is not precluded from contesting the asserted Tax liability in any forum, but
such failure to give prompt notice results in a monetary detriment to the
indemnifying party, then any amount which the indemnifying party is otherwise
required to pay the indemnified party pursuant to this Agreement shall be
reduced by the amount of such detriment.

         8.2. Control of Tax Contests. Each Company shall have full
responsibility and discretion in handling, settling or contesting any Tax
Contest involving a Tax for which it is liable pursuant to Section 2 of this
Agreement; provided, however, ICN shall have full

                                     - 27 -            ICN Tax Sharing Agreement
<PAGE>
responsibility and discretion in handling, settling or contesting any Tax
Contest with respect to a Consolidated or Combined Income Tax Return of the ICN
Group. Furthermore, both Companies may participate in any Tax Contest with
respect to Restructuring Taxes regardless of whether it has liability or
indemnification obligations with respect to such Taxes under this Agreement.

SECTION 9.  NO INCONSISTENT ACTIONS.

                  (a) Each of the Companies covenants and agrees that it will
not take any action, and it will cause its Affiliates to refrain from taking any
action, which may be inconsistent with the Tax treatment of the Transactions as
contemplated in the IRS Private Letter Ruling or the Tax Opinion (any such
action is referred to in this Section 9 as a "Tainting Act"), unless (i) the
Company or Affiliate thereof proposing such Tainting Act (the "Requesting
Party") either (A) obtains a ruling with respect to the Tainting Act from the
Internal Revenue Service or other applicable Tax Authority that is reasonably
satisfactory to the other Company (the "Requested Party") (except that the
Requesting Party shall not submit any such ruling request if a Requested Party
determines in good faith that filing such request might have a materially
adverse effect upon such Requested Party), or (B) obtains an opinion reasonably
acceptable to each Requested Party of independent, nationally-recognized tax
counsel acceptable to each Requested Party, on a basis of assumed facts and
representations consistent with the facts at the time of such action, that such
Tainting Act will not affect the Tax treatment of the Transactions as
contemplated in the IRS Private Letter Ruling or the Tax Opinion, or (ii) each
Requested Party consents in writing to such Tainting Act, which consent shall be
granted or withheld in the sole and absolute discretion of each such Requested
Party. Without limiting the foregoing:

                           (i) Specified Actions. During the two year period
following the Distribution Date, unless clause (i) or (ii) of the preceding
paragraph is satisfied with respect to the applicable action, no Company or its
Affiliate will (A) liquidate or merge with or into any other corporation (other
than a merger which results in the outstanding stock of such Company or

                                     - 28 -            ICN Tax Sharing Agreement
<PAGE>
its Affiliates immediately before the merger continuing to represent at least
eighty (80) percent of the outstanding voting stock and non-voting stock of the
merged corporations after the transaction); (B) issue more than ten (10)
percent, in the aggregate, by vote or value, of its capital stock in one or more
transactions; (C) redeem, purchase or otherwise reacquire its capital stock in
one or more transactions, except to the extent such redemption, purchase or
reacquisition meets the requirements of section 4.05(1)(b) of Revenue Procedure
96-30; (D) sell, exchange, distribute or otherwise dispose of, other than in the
ordinary course of business, more than twenty-five (25) percent of the assets
constituting the trades or businesses relied upon in the IRS Private Letter
Ruling or the Tax Opinion to satisfy Section 355(b) of the Code; or (E)
discontinue or cause to be discontinued the active conduct of the trades or
businesses relied upon in the IRS Private Letter Ruling or the Tax Opinion to
satisfy Section 355(b) of the Code.

                           (ii) No Inconsistent Plan or Intent. Each of the
Companies represents and warrants that neither it nor any of its Affiliates has
any plan or intent to take any action which is inconsistent with any factual
statements or representations in the IRS Private Letter Ruling or the Tax
Opinion. Regardless of any change in circumstances, each of the Companies
covenants and agrees that it will not take, and it will cause its Affiliates to
refrain from taking, any such inconsistent action on or before the second
anniversary of the Distribution Date other than as permitted in this Section 9.

                           (iii) 355(e) Covenant. Notwithstanding anything in
this Agreement to the contrary, each of ICN and RIBAPHARM covenants and agrees
that, during the two-year periods ending on and beginning on the Distribution
Date, unless clause (i) or (ii) of section 9(a) of this Agreement is satisfied
with respect to the applicable action, it will not enter into any negotiations,
agreements or arrangements with respect to transactions or events (including
stock issuances, option grants, capital contributions or acquisitions, which may
cause the Distribution to be treated as part of a plan pursuant to which one or
more persons acquire directly or indirectly

                                     - 29 -            ICN Tax Sharing Agreement
<PAGE>
ICN or RIBAPHARM stock, as the case may be, representing a "50 percent or
greater interest" within the meaning of Section 355(e)(4) of the Code.

                           (iv) Amended or Supplemental Rulings. Each of the
Companies covenants and agrees that it will not file, and it will cause its
Affiliates to refrain from filing, any amendment or supplement to the
Application for Ruling with respect to the Transactions subsequent to the
Distribution Date without the consent of the other Companies, which consent
shall not be unreasonably withheld.

                           (v) Liability for Breach of Representations or
Omission or Misstatement of Material Facts. RIBAPHARM represents that (i) it has
read or will read the Application for Ruling, any amendment or supplement to the
Application for Ruling (each a "Supplemental Application"), and any Tax Opinion
Submission made available to it by ICN, (ii) all information relating to
RIBAPHARM or any member of the RIBAPHARM Group contained in such Application for
Ruling, Supplemental Application and Tax Opinion Submission is or will be true,
correct and complete in all material respects at the time such information is
submitted, and (iii) except to the extent that RIBAPHARM shall have notified ICN
in writing to the contrary, with reasonable specificity and as promptly as
possible, prior to the Distribution, all such information supplied to ICN in
writing by RIBAPHARM or any member of the RIBAPHARM Group will be true, correct
and complete in all material respects as of the Distribution Date. If the IRS
withdraws all, or any portion, of an IRS Private Letter Ruling issued to ICN in
connection with the Distribution, or if any Tax Opinion is rendered inapplicable
or ineffective because of a breach by RIBAPHARM or any member of the RIBAPHARM
Group of a representation or because of the omission or misstatement by
RIBAPHARM or any member of the RIBAPHARM Group of any material fact, which
breach, omission or misstatement was not known to ICN on or before the
Distribution Date, RIBAPHARM and every member of the RIBAPHARM Group shall be
responsible for one hundred (100) percent of any Restructuring Tax resulting
from such breach, omission or misstatement, and shall jointly and severally

                                     - 30 -            ICN Tax Sharing Agreement
<PAGE>
indemnify, on an after-tax-basis, ICN, each member of the ICN Group other than a
member of the RIBAPHARM Group, and their directors, officers and employees and
hold them harmless from and against such Restructuring Tax.

                  (b) Notwithstanding anything to the contrary in this
Agreement, each Company shall be solely liable for, and shall indemnify and hold
harmless the other Company from any Restructuring Tax resulting from a Tainting
Act by such first Company or its Affiliates, regardless of whether clause (i) or
(ii) of Section 9(a) was satisfied with respect to such Tainting Act.

SECTION 10.  SURVIVAL OF OBLIGATIONS.

         The representations, warranties, covenants and agreements set forth in
this Agreement shall be unconditional and absolute and shall remain in effect
without limitation as to time.

SECTION 11.  EMPLOYEE MATTERS.

         Each of the Companies agrees to utilize, or cause its Affiliates to
utilize, the alternative procedure set forth in section 5 of Revenue Procedure
96-60, 1996-2 C.B. 399, with respect to wage reporting.

SECTION 12.  TREATMENT OF PAYMENTS; TAX GROSS UP.

         12.1. Treatment of Tax Indemnity and Tax Benefit Payments. In the
absence of any change in tax treatment under the Code or other applicable Tax
Law, any Tax indemnity payments or Tax Benefit payments made by a Company under
Section 5 shall be reported for Tax purposes by the payor and the recipient as
distributions or capital contributions, as appropriate, occurring immediately
before the Distribution on the Distribution Date, but only to the extent the
payment does not relate to a Tax allocated to the payor in accordance with

                                     - 31 -            ICN Tax Sharing Agreement
<PAGE>
Treasury Regulation Section 1.1502-33(d) (or under corresponding principles of
other applicable Tax Laws).

         12.2. Tax Gross Up. If notwithstanding the manner in which Tax
indemnity payments and Tax Benefit payments were reported, there is an
adjustment to the Tax liability of a Company as a result of its receipt of a
payment pursuant to this Agreement, such payment shall be appropriately adjusted
so that the amount of such payment, reduced by the amount of all Income Taxes
payable with respect to the receipt thereof (but taking into account all
correlative Tax Benefits resulting from the payment of such Income Taxes), shall
equal the amount of the payment which the Company receiving such payment would
otherwise be entitled to receive pursuant to this Agreement.

         12.3. Interest Under This Agreement. Anything herein to the contrary
notwithstanding, to the extent one Company ("indemnitor") makes a payment of
interest to another Company ("indemnitee") under this Agreement with respect to
the period from the date that the indemnitee made a payment of Tax to a Tax
Authority to the date that the indemnitor reimbursed the indemnitee for such Tax
payment, or with respect to the period from the date that the indemnitor
received a Tax Benefit to the date indemnitor paid the indemnitee with respect
to such Tax Benefit, the interest payment shall be treated as interest expense
to the indemnitor (deductible to the extent provided by law) and as interest
income by the indemnitee (includible in income to the extent provided by law).
The amount of the payment shall not be adjusted under Section 12.2 to take into
account any associated Tax Benefit to the indemnitor or increase in Tax to the
indemnitee.

SECTION 13.  DISAGREEMENTS.

         If after good faith negotiations the parties cannot agree on the
application of this Agreement to any matter concerning (i) calculation or
allocation of any liability for Tax, (ii) computation or payment of any Tax due,
(iii) compensation for any Tax Benefit, (iv) preparation

                                     - 32 -            ICN Tax Sharing Agreement
<PAGE>
or filing of any Tax Return or (v) control of any Tax Contest, then the matter
will be referred to an independent law firm or an accounting firm acceptable to
each of the parties (the "Firm"). The Firm shall furnish written notice to the
parties of its resolution of any such disagreement as soon as practical, but in
any event no later than 45 days after its acceptance of the matter for
resolution. Any such resolution by the Firm will be conclusive and binding on
all parties to this Agreement. In accordance with Section 15, each party shall
pay its own fees and expenses (including the fees and expenses of its
representatives) incurred in connection with the referral of the matter to the
Firm. All fees and expenses of the Firm in connection with such referral shall
be shared equally by the parties affected by the matter.

SECTION 14.  LATE PAYMENTS.

         Any amount owed by one party to another party under this Agreement
which is not paid when due shall bear interest at the Prime Rate plus two
percent, compounded on each March 31, June 30, September 30 and December 31,
from the due date of the payment to the date paid. To the extent interest
required to be paid under this Section 14 duplicates interest required to be
paid under any other provision of this Agreement, interest shall be computed at
the higher of the interest rate provided under this Section 14 or the interest
rate provided under such other provision.

SECTION 15.  EXPENSES.

         Except as provided in Section 14, each Company and its Affiliates shall
bear their own expenses incurred in connection with preparation of Tax Returns,
Tax Contests, and other matters related to Taxes under the provisions of this
Agreement.

SECTION 16.  GENERAL PROVISIONS.

         16.1. Notices. All notices and other communications hereunder shall be
in writing and shall be delivered in person, by telecopy, by express or
overnight mail delivered by a

                                     - 33 -            ICN Tax Sharing Agreement
<PAGE>
nationally recognized air courier (delivery charges prepaid), or by registered
or certified mail (postage prepaid, return receipt requested) to the respective
parties as follows:

                  (a)      If to ICN, to:

                           ICN Pharmaceuticals, Inc.
                           3300 Hyland Avenue
                           Costa Mesa, CA  92626
                           Attention:  Gregory Keever, Esq.

                  (b)      If to RIBAPHARM, to:

                           RIBAPHARM Inc.
                           3300 Hyland Avenue
                           Costa Mesa, CA  92626
                           Attention:  Roger Loomis, Esq.

or to such other address as the party to whom notice is given may have
previously furnished to the others in writing in the manner set forth above. Any
notice or communication delivered in person shall be deemed effective on
delivery or when delivery is refused. Any notice or communication sent by
telecopy or by air courier shall be deemed effective on the first Business Day
at the place at which such notice or communication is received following the day
on which such notice or communication was sent.

         16.2. Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall be deemed to be an original, but all of which
together shall constitute one and the same agreement. The Agreement may be
delivered by facsimile transmission of a signed copy thereof.

         16.3. Binding Effect; Assignment. This Agreement and all of the
provisions hereof shall be binding upon the parties hereto and inure to the
benefit of the parties hereto and their

                                     - 34 -            ICN Tax Sharing Agreement
<PAGE>
respective successors and permitted assigns. Except with respect to a merger of
either party, neither this Agreement nor any of the rights, interests or
obligations hereunder shall be assigned by either party hereto without the prior
written consent of the other party, which consent shall not be unreasonably
withheld or delayed; provided, however, that ICN and RIBAPHARM may assign their
respective rights, interests, duties, liabilities and obligations under this
Agreement to any of their respective subsidiaries, but such assignment shall not
relieve ICN or RIBAPHARM, as the assignee, of its obligations hereunder. The
schedules attached hereto or referred to herein are an integral part of this
Agreement and are hereby incorporated into this Agreement and made a part hereof
as if set forth in full herein.

         16.4. Dispute Resolution. Except as otherwise provided for in Section
13, resolution of any and all disputes arising from or in connection with this
Agreement, whether based on contract, tort, or otherwise (collectively,
"Disputes"), shall be governed by and settled in accordance with the provisions
of this Section 16.4. The parties hereto shall use all commercially reasonable
efforts to settle all Disputes without resorting to mediation, arbitration,
litigation or other third party dispute resolution mechanisms. If any Dispute
remains unsettled, the parties hereby agree to mediate such Dispute using a
mediator reasonably acceptable to all parties involved in such Dispute. If the
parties are unable to resolve such dispute through mediation, each party will be
free to commence proceedings for the resolution thereof. No party shall be
entitled to consequential, special, exemplary or punitive damages.

         16.5. Severability. Any provision of this Agreement which is prohibited
or unenforceable in any jurisdiction shall, as to such jurisdiction, be
ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof. Any such

                                     - 35 -            ICN Tax Sharing Agreement
<PAGE>
prohibition or unenforceability in any jurisdiction shall not invalidate or
render unenforceable such provision in any other jurisdiction.

         16.6. Waiver. The observance of any term of this Agreement may be
waived (either generally or in a particular instance and either retroactively or
prospectively) by the party entitled to enforce such term, but such waiver shall
be effective only if it is in writing signed by the party against which such
waiver is to be asserted. Unless otherwise expressly provided in this Agreement,
no delay or omission on the part of any party in exercising any right or
privilege under this Agreement shall operate as a waiver thereof, nor shall any
waiver on the part of any party of any right or privilege under this Agreement
operate as a waiver of any other right or privilege under this Agreement nor
shall any single or partial exercise of any right or privilege preclude any
other or further exercise thereof or the exercise of any other right or
privilege under this Agreement. No failure by either party to take any action or
assert any right or privilege hereunder shall be deemed to be a waiver of such
right or privilege in the event of the continuation or repetition of the
circumstances giving rise to such right unless expressly waived in writing by
the party against whom the existence of such waiver is asserted.

         16.7. Amendment. This Agreement may not be amended or modified in any
respect except by a written agreement signed by both of the parties hereto.

         16.8. Authority. Each of the parties hereto represents to the other
that (a) it has the corporate power and authority to execute, deliver and
perform this Agreement, (b) the execution, delivery and performance of this
Agreement by it has been duly authorized by all necessary corporate action, (c)
it has duly and validly executed and delivered this Agreement, and (d) this
Agreement is a legal, valid and binding obligation, enforceable against it in
accordance with its

                                     - 36 -            ICN Tax Sharing Agreement
<PAGE>
terms subject to applicable bankruptcy, insolvency, reorganization, moratorium
or other similar laws affecting creditors' rights generally and general equity
principles.

         16.9. Interpretation. The headings contained in this Agreement, in any
Schedule hereto and in the table or contents to this Agreement are for reference
purposes only and shall not affect in any way the meaning or interpretation of
this Agreement. Any capitalized term used in any Schedule but not otherwise
defined therein, shall have the meaning assigned to such term in this Agreement.
When a reference is made in this Agreement to an Article or a Section or
Schedule, such reference shall be to an Article or Section of, or a Schedule to,
this Agreement unless otherwise indicated.

         16.10. Effective Time. This Agreement shall become effective upon the
closing of RIBAPHARM's Initial Public Offering.

         IN WITNESS WHEREOF, the parties have caused this Agreement to be
executed by the respective officers as of the date set forth above.

                                        ICN PHARMACEUTICALS, INC.

                                        By:
                                           ------------------------------------
                                        Name:
                                             ----------------------------------
                                        Title:
                                              ---------------------------------

                                        RIBAPHARM INC.

                                        By:
                                           ------------------------------------
                                        Name:
                                             ----------------------------------
                                        Title:
                                              ---------------------------------

                                     - 37 -            ICN Tax Sharing Agreement<PAGE>

                                                                    Exhibit 10.8

                            INDEMNIFICATION AGREEMENT

            INDEMNIFICATION AGREEMENT, dated as of _________, 2002 by and among
Ribapharm Inc., a Delaware corporation (the "Company") and the director and/or
officer of the Company whose name appears on the signature page of this
Agreement ("Indemnitee").

                                    RECITALS

      A. Highly competent persons are becoming more reluctant to serve
publicly-held corporations as directors or officers or in other capacities
unless they are provided with reasonable protection through insurance or
indemnification against risks of claims and actions against them arising out of
their service to and activities on behalf of the corporations.

      B. The Board of Directors of the Company (the "Board") has determined that
the Company should act to assure its directors and officers that there will be
increased certainty of such protection in the future.

      C. It is reasonable, prudent and necessary for the Company contractually
to obligate itself to indemnify such persons to the fullest extent permitted by
applicable law so that they will serve or continue to serve the Company free
from undue concern that they will not be so indemnified.

      D. Indemnitee is willing to serve, to continue to serve and to take on
additional service for or on behalf of the Company on the condition that
Indemnitee be so indemnified.

                                    AGREEMENT

            In consideration of the premises and the covenants contained herein,
the Company and Indemnitee do hereby covenant and agree as follows:

            1. Definitions.

                  (a) For purposes of this Agreement:

                        (i) "Affiliate" shall mean any corporation, partnership,
joint venture, trust or other enterprise in respect of which Indemnitee is or
was or will be serving as a director or officer directly or indirectly at the
request of the Company and including, but not limited to, service with respect
to an employee benefit plan.

                        (ii) "Disinterested Director" shall mean a director of
the Company who is not or was not a party to the Proceeding in respect of which
indemnification is being sought by Indemnitee.

                                      -1-
<PAGE>
                        (iii) "Expenses" shall include all attorneys' fees and
costs, retainers, court costs, transcripts, fees of experts, witness fees,
travel expenses, duplicating costs, printing and binding costs, telephone
charges, postage, delivery service fees and all other disbursements or expenses
incurred in connection with asserting or defending claims.

                        (iv) "Fines" shall include any excise taxes assessed on
Indemnitee with respect to any employee benefit plan.

                        (v) "Independent Counsel" shall mean a law firm or
lawyer that neither is presently nor in the past year has been retained to
represent: (i) the Company or Indemnitee in any matter material to any such
party or (ii) any other party to the Proceeding giving rise to a claim for
indemnification hereunder in any matter material to such other party.
Notwithstanding the foregoing, the term "Independent Counsel" shall not include
any firm or person who, under the applicable standards of professional conduct
then prevailing, would have a conflict of interest in representing any of the
Company or Indemnitee in an action to determine Indemnitee's right to
indemnification under this Agreement. All Expenses of the Independent Counsel
incurred in connection with acting pursuant to this Agreement shall be borne by
the Company.

                        (vi) "Losses" shall mean all expenses, liabilities,
losses and claims (including attorneys' fees, judgments, fines, excise taxes
under the Employee Retirement Income Security Act of 1974, as amended from time
to time, penalties and amounts to be paid in settlement) incurred in connection
with any Proceeding.

                        (vii) "Proceeding" shall include any threatened, pending
or completed action, suit, arbitration, alternate dispute resolution mechanism,
investigation, administrative hearing or any other proceeding, whether civil,
criminal, administrative or investigative.

                  (b) For purposes of this Agreement, a person who acted in good
faith and in a manner such person reasonably believed to be in the interest of
the participants and beneficiaries of an employee benefit plan shall be deemed
to have acted in a manner "not opposed to the best interests of the Company" as
referred to in this Agreement; the term "serving at the request of the Company"
shall include any service as a director, officer, employee or agent of the
corporation which imposes duties on, or involves services by, such director,
officer, employee or agent with respect to an employee benefit plan, its
participants or beneficiaries; and references to the "Company" shall include, in
addition to the resulting corporation, any constituent corporation (including
any constituent of a constituent) absorbed in a consolidation or merger which,
if its separate existence had continued, would have had power and authority to
indemnify Indemnitee in its capacity as a director, officer, or employee or
agent, so that Indemnitee shall stand in the same position under this Agreement
with respect to the resulting or surviving corporation as Indemnitee would have
with respect to such constituent corporation if its separate existence had
continued.

            2. Service by Indemnitee. Indemnitee agrees to begin or continue to
serve the Company or any Affiliate as a director and/or officer. Notwithstanding
anything contained

                                      -2-
<PAGE>
herein, this Agreement shall not create a contract of employment between the
Company and Indemnitee, and the termination of Indemnitee's relationship with
the Company or an Affiliate by either party hereto shall not be restricted by
this Agreement.

            3. Indemnification. The Company jointly and severally agree to
indemnify Indemnitee for, and hold Indemnitee harmless from and against, any
Losses or Expenses at any time incurred by or assessed against Indemnitee
arising out of or in connection with the service of Indemnitee as a director or
officer of the Company or of an Affiliate (collectively referred to as an
"Officer or Director of the Company") to the fullest extent permitted by the
laws of the State of Delaware in effect on the date hereof or as such laws may
from time to time hereafter be amended to increase the scope of such permitted
indemnification. Without diminishing the scope of the indemnification provided
by this Section, the rights of indemnification of Indemnitee provided hereunder
shall include but shall not be limited to those rights set forth hereinafter.

            4. Action or Proceeding Other Than an Action by or in the Right of
the Company. Indemnitee shall be entitled to the indemnification rights provided
herein if Indemnitee is a person who was or is made a party or is threatened to
be made a party to or is involved (including, without limitation, as a witness)
in any Proceeding (other than an action by or in the right of the Indemnitee
(unless approved in advance in writing by the Company's Board of Directors) or
the Company) by reason of (a) the fact that Indemnitee is or was an Officer or
Director of the Company or any other entity which Indemnitee is or was or will
be serving at the request of the Company or (b) anything done or not done by
Indemnitee in any such capacity.

            5. Actions by or in the Right of the Company. Indemnitee shall be
entitled to the indemnification rights provided herein if Indemnitee is a person
who was or is a party or is threatened to be made a party to or is involved
(including, without limitation, as a witness) in any Proceeding brought by or in
the right of the Company to procure a judgment in its favor by reason of (a) the
fact that Indemnitee is or was an Officer or Director of the Company or any
Affiliate, or (b) anything done or not done by Indemnitee in any such capacity.
Pursuant to this Section, Indemnitee shall be indemnified against Losses or
Expenses incurred or suffered by Indemnitee or on Indemnitee's behalf in
connection with the defense or settlement of any Proceeding if Indemnitee acted
in good faith and in a manner Indemnitee reasonably believed to be in or not
opposed to the best interests of the Company. Notwithstanding the foregoing
provisions of this Section, no such indemnification shall be made in respect of
any claim, issue or matter as to which Delaware law expressly prohibits such
indemnification by reason of an adjudication of liability of Indemnitee to the
Company unless and only to the extent that the Court of Chancery of the State of
Delaware or the court in which such action or suit was brought shall determine
upon application that, despite the adjudication of liability but in view of all
the circumstances of the case, Indemnitee is fairly and reasonably entitled to
indemnity for such Losses and Expenses which the Court of Chancery or such other
court shall deem proper.

            6. Indemnification for Losses and Expenses of Party Who is Wholly or
Partly Successful. Notwithstanding any other provision of this Agreement, to the
extent that Indemnitee has been wholly successful on the merits or otherwise in
any Proceeding referred to in Sections 3, 4 or 5 hereof on any claim, issue or
matter therein, Indemnitee shall be indemnified

                                      -3-
<PAGE>
against all Losses and Expenses incurred by Indemnitee or on Indemnitee's behalf
in connection therewith. If Indemnitee is not wholly successful in such
Proceeding but is successful, on the merits or otherwise, as to one or more but
less than all claims, issues or matters in such Proceeding, the Company agrees
to indemnify Indemnitee to the maximum extent permitted by law against all
Losses and Expenses incurred by Indemnitee in connection with each successfully
resolved claim, issue or matter. In any review or Proceeding to determine the
extent of indemnification, the Company shall bear the burden of proving any lack
of success and which amounts sought in indemnity are allocable to claims, issues
or matters which were not successfully resolved. For purposes of this Section
and without limitation, the termination of any such claim, issue or matter by
dismissal with or without prejudice shall be deemed to be a successful
resolution as to such claim, issue or matter.

            7. Payment for Expenses of a Witness. Notwithstanding any other
provision of this Agreement, to the extent that Indemnitee is, by reason of the
fact that Indemnitee is or was an Officer or Director of the Company or any
Affiliate, as the case may be, a witness in any Proceeding, the Company agrees
to pay to Indemnitee all Expenses actually and reasonably incurred by Indemnitee
or on Indemnitee's behalf in connection therewith.

            8. Advancement of Expenses and Costs. All Expenses incurred by or on
behalf of Indemnitee (or reasonably expected by Indemnitee to be incurred by
Indemnitee within three months) in connection with any Proceeding shall be paid
by the Company in advance of the final disposition of such Proceeding within
twenty days after the receipt by the Company of a statement or statements from
Indemnitee requesting from time to time such advance or advances, whether or not
a determination to indemnify has been made under Section 9. Indemnitee's
entitlement to such advancement of Expenses shall include those incurred in
connection with any Proceeding by Indemnitee seeking an adjudication or award in
arbitration pursuant to this Agreement. The financial ability of Indemnitee to
repay an advance shall not be a prerequisite to the making of such advance. Such
statement or statements shall reasonably evidence such Expenses incurred (or
reasonably expected to be incurred) by Indemnitee in connection therewith and
shall include or be accompanied by a written undertaking by or on behalf of
Indemnitee to repay such amount if it shall ultimately be determined that
Indemnitee is not entitled to be indemnified therefor pursuant to the terms of
this Agreement.

            9. Procedure for Determination of Entitlement to Indemnification.

                  (a) When seeking indemnification under this Agreement (which
shall not include in any case the right of Indemnitee to receive payments
pursuant to Section 7 and Section 8 hereof, which shall not be subject to this
Section 9), Indemnitee shall submit a written request for indemnification to the
Company. Determination of Indemnitee's entitlement to indemnification shall be
made promptly, but in no event later than 60 days after receipt by the Company
of Indemnitee's written request for indemnification. The Secretary of the
Company shall, promptly upon receipt of Indemnitee's request for
indemnification, advise the Board that Indemnitee has made such request for
indemnification.

                  (b) The entitlement of Indemnitee to indemnification under
this Agreement shall be determined, with respect to a person who is a director
or officer at the time of

                                      -4-
<PAGE>
such determination, in the specific case (1) by the Board of Directors by a
majority vote of the Disinterested Directors, even though less than a quorum, or
(2) by a committee of the Disinterested Directors designated by majority vote of
the Disinterested Directors, even though less than a quorum, or (3) if there are
no Disinterested Directors, or if such Disinterested Directors so direct, by
Independent Counsel, or (4) by the stockholders. The entitlement of the
Indemnitee to indemnification shall be determined with respect to any person who
is not a director or officer at the time of such determination by any means
reasonably determined by the Company.

                  (c) In the event the determination of entitlement is to be
made by Independent Counsel, such Independent Counsel shall be selected by the
Board and approved by Indemnitee. Upon failure of the Board to so select such
Independent Counsel or upon failure of Indemnitee to so approve, such
Independent Counsel shall be selected by the American Arbitration Association of
New York, New York or such other person as such Association shall designate to
make such selection.

                  (d) If a determination is made pursuant to Section 9(b) is
that Indemnitee is not entitled to indemnification to the full extent of
Indemnitee's request, Indemnitee shall have the right to seek entitlement to
indemnification in accordance with the procedures set forth in Section 10
hereof.

                  (e) If a determination with respect to entitlement to
indemnification shall not have been made within 60 days after receipt by the
Company of such request, the requisite determination of entitlement to
indemnification shall be deemed to have been made and Indemnitee shall be
absolutely entitled to such indemnification, absent (i) misrepresentation by
Indemnitee of a material fact in the request for indemnification or (ii) a final
judicial determination that all or any part of such indemnification is expressly
prohibited by law.

                  (f) The termination of any Proceeding by judgment, order,
settlement or conviction, or upon a plea of nolo contendere or its equivalent,
shall not, of itself, adversely affect the rights of Indemnitee to
indemnification hereunder except as may be specifically provided herein, or
create a presumption that Indemnitee did not act in good faith and in a manner
which Indemnitee reasonably believed to be in or not opposed to the best
interests of the Company or create a presumption that (with respect to any
criminal action or proceeding) Indemnitee had reasonable cause to believe that
Indemnitee's conduct was unlawful.

                  (g) For purposes of any determination of good faith hereunder,
Indemnitee shall be deemed to have acted in good faith if in taking such action
Indemnitee relied on the records or books of account of the Company or an
Affiliate, including financial statements, or on information supplied to
Indemnitee by the officers of the Company or an Affiliate in the course of their
duties, or on the advice of legal counsel for the Company or an Affiliate or on
information or records given or reports made to the Company or an Affiliate by
an independent certified public accountant or by an appraiser or other expert
selected with reasonable care to the Company or an Affiliate. The Company shall
have the burden of establishing the absence of good faith. The provisions of
this Section 9(g) shall not be deemed to be exclusive or to limit in any way the
other circumstances in which Indemnitee may be deemed to have met the applicable
standard of conduct set forth in this Agreement.

                                      -5-
<PAGE>
                  (h) The knowledge and/or actions, or failure to act, of any
other director, officer, agent or employee of the Company or an Affiliate shall
not be imputed to Indemnitee for purposes of determining the right to
indemnification under this Agreement.

            10. Remedies in Cases of Determination Not to Indemnify or to
Advance Expenses.

                  (a) In the event that (i) a determination is made that
Indemnitee is not entitled to indemnification hereunder, (ii) advances are not
made pursuant to Section 8 hereof or (iii) payment has not been timely made
following a determination of entitlement to indemnification pursuant to Section
9 hereof, Indemnitee shall be entitled to seek a final adjudication either
through an arbitration proceeding or in an appropriate court of the State of
Delaware or any other court of competent jurisdiction of Indemnitee's
entitlement to such indemnification or advance.

                  (b) In the event a determination has been made in accordance
with the procedures set forth in Section 9 hereof, in whole or in part, that
Indemnitee is not entitled to indemnification, any judicial proceeding or
arbitration referred to in Section 10(a) shall be de novo and Indemnitee shall
not be prejudiced by reason of any such prior determination that Indemnitee is
not entitled to indemnification, and the Company shall bear the burdens of proof
specified in Sections 6 and 9 hereof in such proceeding.

                  (c) If a determination is made or deemed to have been made
pursuant to the terms of Section 9 or 10 hereof that Indemnitee is entitled to
indemnification, the Company shall be bound by such determination in any
judicial proceeding or arbitration in the absence of (i) a misrepresentation of
a material fact by Indemnitee or (ii) a final judicial determination that all or
any part of such indemnification is expressly prohibited by law.

                  (d) To the extent deemed appropriate by the court, interest
shall be paid by the Company to Indemnitee at a reasonable interest rate for
amounts which the Company or both, indemnifies or is obliged to indemnify
Indemnitee for the period commencing with the date on which Indemnitee requested
indemnification (or reimbursement or advancement of any Expenses) and ending
with the date on which such payment is made to Indemnitee by the Company.

            11. Expenses Incurred by Indemnitee to Enforce this Agreement. All
Expenses incurred by Indemnitee in connection with the preparation and
submission of Indemnitee's request for indemnification hereunder shall be
jointly and severally borne by the Company. In the event that Indemnitee is a
party to or intervenes in any proceeding in which the validity or enforceability
of this Agreement is at issue or seeks an adjudication to enforce Indemnitee's
rights under, or to recover damages for breach of, this Agreement, Indemnitee,
if Indemnitee prevails in whole in such action, shall be entitled to recover
from the Company and shall be indemnified by the Company against, any Expenses
incurred by Indemnitee. If it is determined that Indemnitee is entitled to
indemnification for part (but not all) of the indemnification so requested,
Expenses incurred in seeking enforcement of such partial indemnification shall
be reasonably prorated among the claims, issues or matters for which

                                      -6-
<PAGE>
Indemnitee is entitled to indemnification and for claims, issues or matters for
which Indemnitee is not so entitled.

            12. Non-Exclusivity. The rights of indemnification and to receive
advances as provided by this Agreement shall not be deemed exclusive of any
other rights to which Indemnitee may at any time be entitled under any law,
certificate of incorporation, by-law, other agreement, vote of stockholders or
resolution of directors or otherwise, both as to action in Indemnitee's official
capacity and as to action in another capacity while holding such office. To the
extent Indemnitee would be prejudiced thereby, no amendment, alteration,
rescission or replacement of this Agreement or any provision hereof shall be
effective as to Indemnitee with respect to any action taken or omitted by such
Indemnitee in Indemnitee's position with the Company or an Affiliate or any
other entity which Indemnitee is or was serving at the request of the Company
prior to such amendment, alteration, rescission or replacement.

            13. Duration of Agreement. This Agreement shall apply to any claim
asserted and any Losses and Expenses incurred in connection with any claim
asserted on or after the effective date of this Agreement and shall continue
until and terminate upon the later of: (a) ten years after Indemnitee has ceased
to occupy any of the positions or have any of the relationships described in
Section 3, 4 or 5 hereof; or (b) one year after the final termination of all
pending or threatened Proceedings of the kind described herein with respect to
Indemnitee. This Agreement shall be binding upon the Company and its successors
and assigns and shall inure to the benefit of Indemnitee and Indemnitee's
spouse, assigns, heirs, devisee, executors, administrators or other legal
representatives.

            14. Maintenance of D&O Insurance.

                  (a) The Company each hereby covenants and agrees with
Indemnitee that, so long as Indemnitee shall continue to serve as an Officer or
Director of the Company and thereafter so long as Indemnitee shall be subject to
any possible claim or threatened, pending or completed Proceeding, whether
civil, criminal or investigative, by reason of the fact that Indemnitee was an
Officer or Director of the Company or any other entity which Indemnitee was
serving at the request of the Company shall maintain in full force and effect
(i) the directors' and officers' liability insurance issued by the insurer and
having the policy amount and deductible as currently in effect with respect to
directors and officers of the Company or any of its subsidiaries and (ii) any
replacement or substitute policies issued by one or more reputable insurers
providing in all respects coverage at least comparable to and in the same amount
as that currently provided under such existing policy (collectively, "D&O
Insurance").

                  (b) In all policies of D&O Insurance, Indemnitee shall be
named as an insured in such a manner as to provide Indemnitee the same rights
and benefits, subject to the same limitations, as are accorded to the Company's
directors or officers most favorably insured by such policy.

                  (c) Notwithstanding anything to the contrary set forth in (a)
above, the Company shall have no obligation to maintain D&O Insurance if the
Company determines in good faith that such insurance is not reasonably
available, the premium cost for such insurance is

                                      -7-
<PAGE>
disproportionate to the amount of coverage provided or the coverage provided by
such insurance is limited by exclusions so as to provide an insufficient
benefit.

            15. Severability. Should any part, term or condition hereof be
declared illegal or unenforceable or in conflict with any other law, the
validity of the remaining portions or provisions hereof shall not be affected
thereby, and the illegal or unenforceable portions hereof shall be and hereby
are redrafted to conform with applicable law, while leaving the remaining
portions hereof intact.

            16. Counterparts. This Agreement may be executed in several
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same document.

            17. Headings. Section headings are for convenience only and do not
control or affect meaning or interpretation of any terms or provisions hereof.

            18. Modification and Waiver. No supplement, modification or
amendment of this Agreement shall be binding unless executed in writing by each
of the parties hereto.

            19. Notices. All notices, requests, demands and other communications
provided for by this Agreement shall be in writing (including telecopier or
similar writing) and shall be deemed to have been given at the time when mailed,
enclosed in a registered or certified postpaid envelope, in any general or
branch office of the United States Postal Service, or sent by Federal Express or
other similar overnight courier service, addressed to the address of the parties
stated below or to such changed address as such party may have fixed by notice
or, if given by telecopier, when such telecopy is transmitted and the
appropriate answerback is received.

            (a) If to Indemnitee, to the address appearing on the signature page
                hereof.

            (b) If to the Company to:

                Ribapharm Inc.
                3300 Hyland Avenue
                Costa Mesa, CA 92626
                Attention: Senior Vice President, General Counsel and Secretary

            20. Governing Law. The parties agree that this Agreement shall be
governed by, and construed and enforced in accordance with, the internal laws of
the State of Delaware without regard to its conflicts of law rules.

            21. Entire Agreement. Subject to the provisions of Section 12
hereof, this Agreement constitutes the entire understanding between the parties
and supersedes all proposals, commitments, writings, negotiations and
understandings, oral and written, and all other communications between the
parties relating to the subject matter hereof. This Agreement may not be amended
or otherwise modified except in writing duly executed by all of the parties. A
waiver by any party of any breach or violation of this Agreement shall not be
deemed or construed as a waiver of any subsequent breach or violation thereof.

                                      -8-
<PAGE>
            IN WITNESS WHEREOF, the parties hereto have executed this Agreement
as of the date first above written.

                                        RIBAPHARM INC.

                                        By:
                                           -------------------------------------
                                           Name:
                                           Title:

                                        INDEMNITEE

                                           -------------------------------------
                                           Name:
                                           Title:

                                      -9-

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