Document:

EX-10.80C     RENEWAL LETTER

 

Exhibit 10.80c

March 6, 2006

Via Facsimile and Certified Mail — Return Receipt Request

Mr. Frederic A. Tomarchio

1746 East Joppa Road Associates, LLC

P.O. Box 55

Glenelg, MD 21737

			
	RE:	 	Lease Agreement dated January 1, 1997 by and between The Three Marquees (“Landlord”) and
Monro Muffler Brake, Inc., successor-in-interest to Mr. Tire, Inc. (“Tenant”) for premises
situate at 1746 East Joppa Road, Towson, MD [MMB #753]

Dear Fred:

Please accept this letter as Monro Muffler Brake, Inc.’s official notification of our intent to
renew said lease agreement for the ten-year renewal period commencing on January 1, 2007 and
expiring December 31, 2016. The rent for said renewal shall be increased annually by the Consumer
Price Index for all Urban Consumer. The adjustment shall be no less than 3.5% per year and no more
than 7% per year.

Tenant shall have one ten-year renewal option remaining.

Please do not hesitate to contact me at 800-876-6676 ext. 3384 if you have any questions relative
to the renewal.

Yours truly,

Thomas M. Aspenleiter

VP Real Estate

TMA:mc

8EX-10.82C   RENEWAL LETTER

 

Exhibit 10.82c

March 6, 2006

Via Facsimile and Certified Mail — Return Receipt Request

Mr. Frederic A. Tomarchio

The Three Marquees

P.O. Box 55

Glenelg, MD 21737

			
	RE:	 	Lease Agreement dated January 1, 1997 by and between The Three Marquees (“Landlord”) and
Monro Muffler Brake, Inc., successor-in-interest to Mr. Tire, Inc. (“Tenant”) for premises
situate at 1105 North Point Road, Dundalk, MD [MMB #756]

Dear Fred:

Please accept this letter as Monro Muffler Brake, Inc.’s official notification of our intent to
renew said lease agreement for the ten-year renewal period commencing on January 1, 2007 and
expiring December 31, 2016. The rent for said renewal shall be increased annually by the Consumer
Price Index for all Urban Consumer. The adjustment shall be no less than 3.5% per year and no more
than 7% per year.

Tenant shall have one ten-year renewal option remaining.

Please do not hesitate to contact me at 800-876-6676 ext. 3384 if you have any questions relative
to the renewal.

Yours truly,

Thomas M. Aspenleiter

VP Real Estate

TMA:mc

9EX-10.83C      RENEWAL LETTER

 

Exhibit 10.83c

March 6, 2006

Via Facsimile and Certified Mail — Return Receipt Request

Mr. Frederic A. Tomarchio

The Three Marquees

P.O. Box 55

Glenelg, MD 21737

			
	RE:	 	Lease Agreement dated January 1, 1997 by and between The Three Marquees (“Landlord”) and
Monro Muffler Brake, Inc., successor-in-interest to Mr. Tire, Inc. (“Tenant”) for premises
situate at 118 Back River Neck Road, Essex, MD [MMB #758]

Dear Fred:

Please accept this letter as Monro Muffler Brake, Inc.’s official notification of our intent to
renew said lease agreement for the ten-year renewal period commencing on January 1, 2007 and
expiring December 31, 2016. The rent for said renewal shall be increased annually by the Consumer
Price Index for all Urban Consumer. The adjustment shall be no less than 3.5% per year and no more
than 7% per year.

Tenant shall have one ten-year renewal option remaining.

Please do not hesitate to contact me at 800-876-6676 ext. 3384 if you have any questions relative
to the renewal.

Yours truly,

Thomas M. Aspenleiter

VP Real Estate

TMA:mc

10<PAGE>

                                                                     EXHIBIT 4.1

THIS WARRANT AND THE SHARES OF COMMON STOCK ISSUABLE UPON EXERCISE HEREOF HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR UNDER ANY
STATE SECURITIES LAWS AND MAY NOT BE SOLD EXCEPT PURSUANT TO AN EFFECTIVE
REGISTRATION STATEMENT, OR AN EXEMPTION FROM REGISTRATION, UNDER SAID ACT AND
LAWS.

                               WARRANT TO PURCHASE

                             SHARES OF COMMON STOCK

                                       OF

                                   ZILA, INC.

                             Expires March 24, 2011

No. 1

                                                                  March 24, 2006

      FOR VALUE RECEIVED, subject to the provisions hereinafter set forth, the
undersigned, Zila, Inc., a Delaware corporation (together with its successors
and assigns, the "Issuer"), hereby certifies that

                    BLACK DIAMOND COMMERCIAL FINANCE, L.L.C.

or its registered assigns is entitled to subscribe for and purchase at an
initial exercise price of $3.79 per share, during the Term (as defined below),
1,200,000 shares of the duly authorized, validly issued, fully paid and
non-assessable Common Stock all subject to adjustment and upon the terms and
conditions as hereinafter provided. Capitalized terms used in this Warrant and
not otherwise defined herein shall have the respective meanings specified in
Section 7 hereof.

      1. Term. The right to subscribe for and purchase shares of Warrant Stock
represented hereby shall commence on the date hereof and shall expire at 5:00
P.M., Eastern Time, on March 24, 2011 (such period being the "Term").

      2. Method of Exercise; Payment; Issuance of New Warrant; Transfer and
Exchange.

            (a) Time of Exercise. The purchase rights represented by this
Warrant may be exercised in whole or in part at any time and from time to time
during the Term.

<PAGE>

            (b) Method of Exercise. The Holder hereof may exercise this Warrant,
in whole or in part, by the surrender of this Warrant (with the exercise form
attached hereto duly executed) at the principal office of the Issuer, and by the
payment to the Issuer of an amount of consideration therefor equal to the
Warrant Price in effect on the date of such exercise multiplied by the number of
shares of Warrant Stock with respect to which this Warrant is then being
exercised, payable at such Holder's election (i) by certified or official bank
check or wire transfer of immediately available funds or (ii) by surrender to
the Issuer for cancellation of a portion of this Warrant representing that
number of unissued shares of Warrant Stock which is equal to the quotient
obtained by dividing (A) the product obtained by multiplying the Warrant Price
by the number of shares of Warrant Stock being purchased upon such exercise by
(B) the difference obtained by subtracting the Warrant Price from the Current
Market Price per share of Warrant Stock as of the date of such exercise, or
(iii) by a combination of the foregoing methods of payment selected by the
Holder of this Warrant. In any case where the consideration payable upon such
exercise is being paid in whole or in part pursuant to the provisions of clause
(ii), such exercise shall be accompanied by written notice from the Holder of
this Warrant specifying the manner of payment thereof and containing a
calculation showing the number of shares of Warrant Stock with respect to which
rights are being surrendered thereunder and the net number of shares to be
issued after giving effect to such surrender.

            (c) Issuance of Stock Certificates. In the event of any exercise of
the rights represented by this Warrant in accordance with and subject to the
terms and conditions hereof, (i) certificates for the shares of Warrant Stock so
purchased shall be dated the date of such exercise and delivered to the Holder
hereof within a reasonable time, not exceeding five Business Days after such
exercise, and the Holder hereof shall be deemed for all purposes to be the
Holder of the shares of Warrant Stock so purchased as of the date of such
exercise, and (ii) unless this Warrant has expired, a new Warrant representing
the number of shares of Warrant Stock, if any, with respect to which this
Warrant shall not then have been exercised including any portion which is not
then exercisable pursuant to Section 5 (less any amount thereof which shall have
been cancelled in payment or partial payment of the Warrant Price as hereinabove
provided) shall also be issued to the Holder hereof within such time.

            (d) Transferability of Warrant; Warrant Stock. Subject to the
provisions of Section 2(e) hereof, this Warrant may be transferred on the books
of the Issuer by the Holder hereof in person or by duly authorized attorney,
upon surrender of this Warrant at the principal office of the Issuer, properly
endorsed (by the Holder executing an assignment in the form attached hereto) and
upon payment of any necessary transfer tax or other governmental charge imposed
upon such transfer. This Warrant is exchangeable at the principal office of the
Issuer for Warrants for the purchase of the same aggregate number of shares of
Warrant Stock, each new Warrant to represent the right to purchase such number
of shares of Warrant Stock as the Holder hereof shall designate at the time of
such exchange. All Warrants issued on transfers or exchanges shall be dated the
Closing Date and shall be identical to this Warrant except as to the number of
shares of Warrant Stock issuable pursuant hereto.

            (e) Compliance with Securities Laws.

                  (i) The Holder of this Warrant, by acceptance hereof,
acknowledges and agrees that the Holder will not offer, sell or otherwise
dispose of this Warrant

                                       2
<PAGE>

or any shares of Warrant Stock to be issued upon exercise hereof except pursuant
to an effective registration statement, or an exemption from registration, under
the Securities Act and any applicable state securities laws.

                  (ii) This Warrant and all certificates representing shares of
Warrant Stock issued upon exercise hereof shall be stamped or imprinted with a
legend in substantially the following form:

      "THIS WARRANT AND THE SHARES OF COMMON STOCK ISSUABLE UPON EXERCISE HEREOF
      MAY NOT BE SOLD EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT, OR
      AN EXEMPTION FROM REGISTRATION, UNDER SAID ACT AND LAWS."

            (f) Continuing Rights of Holder. The Issuer will, at the time of or
at any time after each exercise of this Warrant, upon the request of the Holder
hereof or of any shares of Warrant Stock issued upon such exercise, acknowledge
in writing the extent, if any, of its continuing obligation to afford to such
Holder all rights to which such Holder shall continue to be entitled after such
exercise in accordance with the terms of this Warrant, provided that if any such
Holder shall fail to make any such request, the failure shall not affect the
continuing obligation of the Issuer to afford such rights to such Holder.

            (g) Recapitalization, Reorganization, Reclassification,
Consolidation, Merger or Sale.

                  (i) Without limiting any other provision hereof, in case the
Issuer after the Closing Date shall do any of the following (each a "Triggering
Event") (a) consolidate with or merge into any other Person and the Issuer shall
not be the continuing or surviving corporation of such consolidation or merger,
or (b) permit any other Person to consolidate with or merge into the Issuer and
the Issuer shall be the continuing or surviving Person but, in connection with
such consolidation or merger, any Capital Stock of the Issuer shall be changed
into or exchanged for securities of any other Person or cash or any other
property, or (c) transfer all or substantially all of its properties or assets
to any other Person, or (d) effect a capital reorganization or reclassification
of its Capital Stock, or (e) enter into any other transaction similar to any of
the foregoing, then, and in the case of each such Triggering Event, proper
provision shall be made so that, upon the basis and the terms and in the manner
provided in this Warrant, the Holder of this Warrant shall be entitled upon the
exercise hereof at any time after the consummation of such Triggering Event, to
the extent this Warrant is not exercised prior to such Triggering Event, or is
not redeemed in connection with such Triggering Event, to receive at the Warrant
Price in effect at the time immediately prior to the consummation of such
Triggering Event, in lieu of the Common Stock issuable upon such exercise of
this Warrant prior to such Triggering Event, the securities, cash and property
to which such Holder would have been entitled upon the consummation of such
Triggering Event if such Holder had exercised the rights represented by this
Warrant immediately prior thereto, subject to adjustments (subsequent to such
corporate action) as nearly equivalent as possible to the adjustments provided
for in Section 4 hereof. The Issuer shall give reasonable prior notice (but no
less than 5 Business Days' prior notice) of any Triggering Event to the Holder
of this Warrant in accordance with Section 11 hereof.

                                       3
<PAGE>

                  (ii) Notwithstanding anything contained in this Warrant to the
contrary, the Issuer will not effect any Triggering Event unless, prior to the
consummation thereof, each Person (other than the Issuer) which may be required
to deliver any securities, cash or property upon the exercise of this Warrant as
provided herein shall assume, by written instrument delivered to, and reasonably
satisfactory to, the Holder, (a) the obligations of the Issuer under this
Warrant (and if the Issuer shall survive the consummation of such Triggering
Event, such assumption shall be in addition to, and shall not release the Issuer
from, any continuing obligations of the Issuer under this Warrant) and (b) the
obligation to deliver to such Holder such securities, cash or property as, in
accordance with the foregoing provisions of this Section 2(g), such Holder shall
be entitled to receive, and such Person shall have similarly delivered to such
Holder an opinion of counsel for such Person (which may be in-house counsel),
which opinion of counsel shall be reasonably satisfactory to such Holder,
stating that this Warrant shall thereafter continue in full force and effect and
the terms hereof (including, without limitation, all of the provisions of this
Section 2(g)) shall be applicable to the securities, cash or property which such
Person may be required to deliver upon any exercise of this Warrant or the
exercise of any rights pursuant hereto.

      3. Stock Fully Paid; Reservation and Listing of Shares; Covenants.

            (a) The Issuer represents, warrants, covenants and agrees that all
shares of Warrant Stock which may be issued upon the exercise of this Warrant,
will, upon issuance, be duly authorized, validly issued, fully paid and
non-assessable and free from all taxes, liens and charges created by or through
the Issuer with respect to issuance (other than restrictions under federal and
state securities laws). The Issuer further covenants and agrees that during the
period within which this Warrant may be exercised, the Issuer will at all times
have authorized and reserved a sufficient number of shares of Common Stock to
provide for the exercise of this Warrant.

            (b) If any shares of the Common Stock required to be reserved for
issuance upon exercise of this Warrant or as otherwise provided hereunder
require registration or qualification with any governmental authority under any
federal or state law before such shares may be so issued, the Issuer will in
good faith use its best efforts as expeditiously as possible at its expense to
cause such shares to be duly registered or qualified. To the extent permissible
under the applicable securities exchange rules, if the Issuer shall list any
shares of Common Stock on any securities exchange it will, at its expense, list
thereon, maintain and increase when necessary such listing of, all shares of
Warrant Stock from time to time issued upon exercise of this Warrant or as
otherwise provided hereunder and unissued shares of Warrant Stock which are at
any time issuable hereunder, so long as any shares of Common Stock shall be so
listed. The Issuer will also so list on each securities exchange, and will
maintain such listing of, any other securities which the Holder of this Warrant
shall be entitled to receive upon the exercise of this Warrant if at the time
any securities of the same class shall be listed on such securities exchange by
the Issuer.

            (c) The Issuer shall not by any action including, without
limitation, amending its Certificate of Incorporation or through any
reorganization, transfer of assets, consolidation, merger, dissolution, issue or
sale of securities or any other action, avoid or seek to avoid the observance or
performance of any of the terms of this Warrant, but will at all times in

                                       4
<PAGE>

good faith assist in the carrying out of all such terms and in the taking of all
such actions as may be necessary or appropriate to protect the rights of the
Holder hereof against impairment. Without limiting the generality of the
foregoing, without the consent of the Requisite Holders, the Issuer will (i) not
permit the par value, if any, of its Common Stock to exceed the then effective
Warrant Price, (ii) not amend or modify any provision of the Certificate of
Incorporation or by-laws of the Issuer in any manner that would adversely affect
in any way the powers, preferences or relative participating, optional or other
special rights of the Holders of the Warrants disproportionately in relation to
the holders of the Common Stock, (iii) take all such action as may be reasonably
necessary in order that the Issuer may validly and legally issue fully paid and
nonassessable shares of Common Stock, free and clear of any liens, claims,
encumbrances and restrictions (other than as provided herein and restrictions
under federal and state securities laws) created by or through Issuer with
respect to such issuance upon the exercise of this Warrant, and (iv) use its
reasonable best efforts to obtain all such authorizations, exemptions or
consents from any public regulatory body having jurisdiction thereof as may be
necessary to enable the Issuer to perform its obligations under this Warrant.

            (d) The Issuer agrees that neither it nor its Affiliates will in the
future issue any press releases or other public disclosure, including any
prospectus, proxy statement or other materials filed with any governmental
authority relating to a public offering of the stock of the Issuer or any of its
Subsidiaries, using the name of the Holder or its Affiliates without at least
two (2) Business Days prior notice to the Holder and without the prior written
consent of the Holder unless (and only to the extent that) the Issuer or its
Affiliate is required to do so under law and then, in any event, the Issuer or
such Affiliate will consult with the Holder before issuing such press release or
other public disclosure.

      4. Adjustment of Warrant Price and Warrant Share Number. The Warrant Share
Number and the Warrant Price shall be subject to adjustment from time to time
upon the happening of certain events, and the Holder hereof shall have
additional rights, as follows:

            (a) Subdivision or Combination of Shares. If the Issuer, at any time
while this Warrant is outstanding, shall subdivide or combine any shares of
Common Stock, (i) in case of subdivision of shares, the Warrant Share Number
shall be proportionately increased (as at the effective date of such
subdivision) to reflect the increase in the total number of shares of Common
Stock outstanding as a result of such subdivision, or (ii) in the case of a
combination of shares, the Warrant Share Number shall be proportionately reduced
(as at the effective date of such combination) to reflect the reduction in the
total number of shares of Common Stock outstanding as a result of such
combination.

            (b) Certain Dividends and Distributions. If the Issuer, at any time
while this Warrant is outstanding, shall:

                  (i) Stock Dividends. Pay a dividend in, or make any other
distribution to its stockholders (without consideration therefor) of, shares of
Common Stock or any Common Stock Equivalent, the Warrant Share Number shall be
adjusted, as at the date of such payment or other distribution), to that number
determined by multiplying the Warrant Share Number in effect immediately prior
to such payment or other distribution, by a fraction (1) the numerator of which
shall be the total number of shares of Common Stock outstanding

                                       5
<PAGE>

immediately after such dividend or distribution (plus in the event that the
Issuer paid cash for fractional shares, the number of additional shares which
would have been outstanding had the Issuer issued fractional shares in
connection with said dividends), and (2) the denominator of which shall be the
total number of shares of Common Stock outstanding immediately prior to such
dividend or distribution; or

                  (ii) Liquidating Dividends, etc. Make a distribution of its
property to the holders of its Common Stock as a dividend in liquidation or
partial liquidation or by way of return of capital other than as a dividend
payable out of funds legally available for dividends under the laws of the State
of Delaware, the Issuer shall concurrently make a cash payment to the Holder of
this Warrant equal to the fair market value of such property as would have been
payable to such Holder had such Holder been the Holder of record of the number
of shares of Warrant Stock issuable upon exercise of this Warrant on the record
date for such distribution or if no such record is taken, on the date of such
distribution; and appropriate provision therefor shall be made a part of any
such distribution; or

            (c) Other Action Affecting Common Stock. In case after the Closing
Date, the Issuer shall take any action affecting its Common Stock, other than an
action described in any of the foregoing Sections 4(a) through 4(b), inclusive,
and the failure to make any adjustment would not fairly protect the purchase
rights represented by this Warrant in accordance with the essential intent and
principle of this Section 4, then the Warrant Share Number shall be adjusted in
such manner and at such time as the Board may in good faith determine to be
equitable in the circumstances.

            (d) Adjustment of Warrant Price. Upon each adjustment in the Warrant
Share Number pursuant to any of the foregoing provisions of this Section 4, the
Warrant Price shall be adjusted, to the nearest ten thousandth of one cent, to
the product obtained by multiplying the Warrant Price immediately prior to such
adjustment in the Warrant Share Number by a fraction, the numerator of which
shall be the Warrant Share Number immediately before giving effect to such
adjustment and the denominator of which shall be the Warrant Share Number
immediately after giving effect to such adjustment; provided, however, that if
at any time, as a result of any adjustments hereunder, the Warrant Price shall
be less than the par value per share of Warrant Stock, then the price payable
per share of Warrant Stock by the Holder hereunder in the event of an exercise
of this Warrant at such time in whole or in part shall be an amount equal to the
par value per share of such Warrant Stock.

      5. Notice of Adjustments. Whenever the Warrant Price or Warrant Share
Number shall be adjusted pursuant to Section 4 hereof (for purposes of this
Section 5, an "adjustment"), the Issuer shall cause its Chief Financial Officer
to prepare and execute a certificate setting forth, in reasonable detail, the
event requiring the adjustment, the amount of the adjustment, the method by
which such adjustment was calculated (including a description of the basis on
which the Board made any determination hereunder), and the Warrant Price and
Warrant Share Number after giving effect to such adjustment, and shall cause
copies of such certificate to be delivered to the Holder of this Warrant
promptly after each adjustment. Any dispute between the Issuer and the Holder of
this Warrant with respect to the matters set forth in such certificate may at
the option of the Requisite Holders of this Warrant be submitted to an
independent accounting firm not then regularly engaged by the Issuer chosen by
the Issuer and

                                       6
<PAGE>

reasonably acceptable to the Requisite Holders, which firm shall deliver a
written opinion as to such matters to the Issuer and the Holders within thirty
days after submission to it of such dispute. Such opinion shall be final and
binding on the parties hereto. The fees and expenses of such accounting firm
shall be paid by the Issuer.

      6. Fractional Shares. No fractional shares of Warrant Stock will be issued
in connection with any exercise hereof, but in lieu of such fractional shares,
the Issuer shall make a cash payment therefor equal in amount to the fair market
value of such fractional shares.

      7. Definitions. For the purposes of this Warrant, the following terms have
the following meanings:

      "Affiliate" means, with respect to any Person, (a) each Person that,
directly or indirectly, owns or controls, whether beneficially, or as a trustee,
guardian or other fiduciary, 5% or more of the Voting Stock of such Person, (b)
each Person that controls, is controlled by or is under common control with such
Person, (c) each of such Person's officers, directors, joint venturers and
partners and (d) in the case of the Issuer, the immediate family members,
spouses and lineal descendants of individuals who are Affiliates of the Issuer.
For the purposes of this definition, "control" of a Person shall mean the
possession, directly or indirectly, of the power to direct or cause the
direction of its management or policies, whether through the ownership of voting
securities, by contract or otherwise.

      "Board" shall mean the Board of Directors of the Issuer.

      "Business Day" means any day except a Saturday, a Sunday or a legal
holiday in New York City.

      "Capital Stock" means and includes (i) any and all shares, interests,
participations or other equivalents of or interests in (however designated)
corporate stock, including, without limitation, shares of preferred or
preference stock, (ii) all partnership interests (whether general or limited) in
any Person which is a partnership, (iii) all membership interests or limited
liability company interests in any limited liability company, and (iv) all
equity or ownership interests in any Person of any other type.

      "Certificate of Incorporation" means the Certificate of Incorporation of
the Issuer as in effect on the Closing Date, and as hereafter from time to time
amended, modified, supplemented or restated in accordance with its terms and
pursuant to applicable law.

      "Closing Date" means March 24, 2006.

      "Common Stock" means the Common Stock of the Issuer, par value $.001 per
share, and any other Capital Stock into which such stock may hereafter be
changed.

      "Credit Agreement" means that certain credit agreement, dated as of the
Closing Date by and among the Issuer, the Investor and the other borrowers and
lenders party thereto.

      "Current Market Price" as in effect on any day, means the average of the
daily market prices of the Common Stock on the the Nasdaq Stock Markets National
Market System

                                       7
<PAGE>

("NMS") for the period of 30 consecutive trading days ending three trading days
preceding such date or, if the Common Stock is not listed on the NMS, then the
last sale price on such day on the principal domestic stock exchange on which
such Common Stock is then listed or admitted to trading, or, if no sale takes
place on such day on such exchange, the average of the closing bid and asked
prices on such day as officially quoted on such exchange, or, if the Common
Stock is not then listed or admitted to trading on any domestic stock exchange,
then the Current Market Price for each such trading day shall be the average of
the reported closing bid and asked price quotations on such day in the
over-the-counter market, as reported by NASDAQ, or, if not so reported, as
furnished by the National Quotation Bureau, Inc., or if such firm at the time is
not engaged in the business of reporting such prices, as furnished by any
similar firm then engaged in such business as selected by the Issuer, or if
there is no such firm, as furnished by any member of the National Association of
Securities Dealers, Inc. selected by the Issuer with the written approval of the
Requisite Holders (which approval shall not be unreasonably withheld). If at any
time such Common Stock is not listed on any domestic exchange or quoted in the
domestic over-the-counter market, the Current Market Price shall be deemed to be
the fair market value per share of such Common Stock as determined in good faith
by the Board (by determination of its disinterested members) by notice to the
Holder. If within twenty days after receipt of such notice the Holder notifies
the Board in writing to its disagreement as to such fair market value as
determined by the Board, the Current Market Price shall be the fair market value
per share of such Common Stock as determined by an Independent Appraiser
mutually selected by the Issuer and the Holder, which selection shall be made by
the Issuer and the Holder within seven days of receipt of such objection by the
Issuer. The determination of fair market value by such Independent Appraiser
shall be made within 30 days of such appraiser's engagement by Issuer. The fees
and expenses of such Independent Appraiser shall be paid by the Issuer if such
fair market value as so determined is more than 5% greater (if the Holder's
objection was that such determination was too low) or 5% lower (if the Requisite
Holder's objection was that such determination was too high), in each case, than
the amount thereof as determined by the Board, but shall otherwise be paid by
the Holder. The determination of fair market value by such Independent Appraiser
shall be based upon the fair market value of the Issuer determined on a going
concern basis as between a willing buyer and a willing seller and taking into
account all relevant factors determinative of value (but without taking into
account any discount for minority or non-control ownership positions), and shall
be final and binding on all parties. In determining the fair market value of any
shares of Common Stock, no consideration shall be given to any restrictions on
transfer of the Common Stock imposed by agreement or by federal or state
securities laws, or to the existence or absence of, or any limitations on,
voting rights, or to minority or non-control ownership positions.

      "Exchange Act" means the Securities Exchange Act of 1934, as amended, or
any similar federal statute at the time in effect.

      "Holders" mean the Persons who shall from time to time own any Warrant.
The term "Holder" means one of the Holders.

      "Independent Appraiser" means a nationally recognized investment banking
firm or other nationally recognized firm, in each case, that is regularly
engaged in the business of appraising the Capital Stock or assets of
corporations or other entities as going concerns, and which is not affiliated
with either the Issuer or the Holder.

                                       8
<PAGE>

      "Issuer" has the meaning specified in the first paragraph hereof.

      "Person" means an individual, a corporation, a partnership, a trust, a
limited liability company, an unincorporated organization or a government
organization or an agency or political subdivision thereof.

      "Requisite Holders" means at any time the Holders of Warrants (other than
the Issuer or any Subsidiary thereof) exercisable for a majority of the shares
of Warrant Stock issuable under the Warrants at the time outstanding.

      "Securities" means any debt or equity securities of the Issuer, whether
now or hereafter authorized, any instrument convertible into or exchangeable for
Securities or a Security, and any option, warrant or other right to purchase or
acquire any Security. "Security" means one of the Securities.

      "Securities Act" means the Securities Act of 1933, as amended, or any
similar federal statute then in effect.

      "Subsidiary" means any corporation at least 50% of whose outstanding
Voting Stock shall at the time be owned directly or indirectly by the Issuer or
by one or more of its Subsidiaries, or by the Issuer and one or more of its
Subsidiaries.

      "Voting Stock", any class or classes (however designated) of capital stock
having ordinary voting power for the election of a majority of the members of
the Board (or other governing body) of the corporation, other than Capital Stock
having such power only by reason of the happening of a contingency.

      "Warrants" means this Warrant and any other warrants of like tenor issued
in substitution or exchange for any thereof pursuant to the provisions of
Section 2(c) or 2(d) hereof or of any of such other Warrants.

      "Warrant Price" means the exercise price per share of Common Stock
specified in the first paragraph of this Warrant and such other exercise prices
as shall result from the adjustments specified in Section 4 hereof.

      "Warrant Share Number" means at any time the aggregate number of shares of
Warrant Stock which may at such time be purchased upon exercise of this Warrant,
after giving effect to all prior adjustments to such number made or required to
be made under the terms hereof.

      "Warrant Stock" means Common Stock issuable upon exercise of any Warrant
or Warrants or otherwise issuable pursuant to any Warrant or Warrants.

      8. Information. The Issuer shall deliver to the Holder hereof a copy of
the Issuer's annual report and any other information mailed to stockholders as
if the Holder were a stockholder.

                                       9
<PAGE>

      9. Amendment and Waiver. Any term, covenant, agreement or condition in
this Warrant may be amended, or compliance therewith may be waived (either
generally or in a particular instance and either retroactively or
prospectively), by a written instrument or written instruments executed by the
Issuer and the Requisite Holders; provided, however, that no such amendment or
waiver shall reduce the Warrant Share Number, increase the Warrant Price,
shorten the period during which this Warrant may be exercised, change the manner
of payment of the Warrant Price or modify any provision of this Section 9
without the consent of the Holder of this Warrant.

      10. Governing Law. THIS WARRANT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT GIVING EFFECT TO
CONFLICTS OF LAW PRINCIPLES THEREOF.

      11. Notices. All notices and other communications provided for hereunder
shall be in writing and delivered by hand or sent by first class registered
mail, return receipt requested, or sent by telecopy (with such telecopy to be
confirmed promptly in writing sent by first class registered mail, return
receipt requested), and if to the Holder of this Warrant or of Warrant Stock
issued pursuant hereto, addressed to such Holder at its last known address or
telecopy number appearing on the books of the Issuer maintained for such
purposes, and if to the Issuer, addressed to:

                Zila, Inc.
                5227 North 7th Street
                Phoenix, AZ 85014-2800

or to such other address or addresses or telecopy number or numbers as any such
party may most recently have designated in writing to the other parties hereto
by such notice. All such communications shall be deemed to have been given or
made when so delivered by hand, upon actual receipt if sent by telecopy, or
three business days after being so mailed.

      12. Remedies. The Issuer stipulates that the remedies at law of the Holder
of this Warrant in the event of any default or threatened default by the Issuer
in the performance of or compliance with any of the terms of this Warrant are
not and will not be adequate and that, to the fullest extent permitted by law,
such terms may be specifically enforced by a decree for the specific performance
of any agreement contained herein or by an injunction against a violation of any
of the terms hereof or otherwise. Time is of the essence in this Warrant.

      13. Successors and Assigns. This Warrant and the rights evidenced hereby
shall inure to the benefit of and be binding upon the successors and assigns of
the Issuer, the Holder hereof and (to the extent provided herein) the Holders of
Warrant Stock issued pursuant hereto, and shall be enforceable by any such
Holder or Holder of Warrant Stock.

      14. No Voting Rights. This Warrant does not confer upon the Holder any
right to vote on, consent to or otherwise participate with respect to matters to
a vote of the stockholders of the Issuer or to receive notice as a stockholder
of the Issuer, as such, in respect of any matters whatsoever, nor any other
rights or liabilities as a stockholder, prior to the exercise hereof; this
Warrant does, however, require certain notices to the Holder as set forth
herein.

                                       10
<PAGE>

      15. Modification and Severability. If, in any action before any court or
agency legally empowered to enforce any provision contained herein, any
provision hereof is found to be unenforceable, then such provision shall be
deemed modified to the extent necessary to make it enforceable by such court or
agency. If any such provision is not enforceable as set forth in the preceding
sentence, the unenforceability of such provision shall not affect the other
provisions of this Warrant, but this Warrant shall be construed as if such
unenforceable provision had never been contained herein.

      16. Integration. This Warrant replaces all prior agreements, supersedes
all prior negotiations and constitutes the entire agreement of the parties with
respect to the transactions contemplated herein.

      17. Headings. The headings of the Sections of this Warrant are for
convenience of reference only and shall not, for any purpose, be deemed a part
of this Warrant.

                            [SIGNATURE PAGE FOLLOWS]

                                       11
<PAGE>

                                       ZILA, INC.

                                       By: /s/ Andrew A. Stevens
                                           -------------------------------------
                                       Name: Andrew A. Stevens
                                       Title:  VP & CFO

                                       12
<PAGE>

                                  EXERCISE FORM

[    ]

      The undersigned hereby irrevocably elects to exercise the right to
purchase represented by the attached Warrant for, and to purchase thereunder,___
shares of Common Stock, par value $.001 per share (the "COMMON STOCK"), of Zila,
Inc. (the "ISSUER"), as provided for therein, and tenders herewith payment of
the Warrant Price in full in accordance with the terms of the attached Warrant.

      Please issue a certificate or certificates for such shares of Common Stock
in the following name or names and denominations:

      If said number of shares of Common Stock shall not be all the shares of
Common Stock issuable upon exercise of the attached Warrant, a new Warrant is to
be issued in the name of the undersigned for the balance remaining of such
shares of Common Stock less any fraction of a share of Common Stock paid in
cash.

Dated:  _____________                  Signature  ___________________________
                                       Address    ___________________________
                                                  ___________________________

                                       13
<PAGE>

                                   ASSIGNMENT

FOR VALUE RECEIVED, the undersigned registered owner of this Warrant hereby
sells, assigns and transfers unto _______________ the within Warrant and all
rights evidenced thereby and does irrevocably constitute and appoint
_______________, attorney, to transfer the said Warrant on the books of the
within named corporation.

Dated:  _____________                  Signature  ___________________________
                                       Address    ___________________________
                                                  ___________________________

                               PARTIAL ASSIGNMENT

FOR VALUE RECEIVED, the undersigned registered owner of this Warrant hereby
sells, assigns and transfers unto _________________ the right to purchase
________ shares of the Common Stock issuable upon exercise of the attached
Warrant, and does irrevocably constitute and appoint __________________,
attorney, to transfer that part of the said Warrant on the books of the within
named corporation.

Dated:  _____________                  Signature  ___________________________
                                       Address    ___________________________
                                                  ___________________________

FOR USE BY THE ISSUER ONLY:

This Warrant No. W-_ cancelled (or transferred or exchanged) this ___ day of
__________, 20_, shares of Common Stock issued therefor in the name of
___________________, Warrant No. W-____ issued for _____ shares of Common Stock
in the name of_______________________

                                       14

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