REGISTRATION RIGHTS AGREEMENT

         REGISTRATION RIGHTS AGREEMENT (this "Agreement"),  dated as of _______,
2000, by and between STEROIDOGENESIS  INHIBITORS  INTERNATIONAL,  INC., a Nevada
corporation,  (the "Company"), and FUSION CAPITAL FUND II, LLC (together with it
permitted assigns, the "Buyer"). Capitalized terms used herein and not otherwise
defined herein shall have the respective  meanings set forth in the Common Stock
Purchase  Agreement by and between the parties hereto dated as of _______,  2000
(as amended, restated, supplemented or otherwise modified from time to time, the
"Purchase Agreement").

                                    WHEREAS:

         A. The Company has agreed, upon the terms and subject to the conditions
of the Purchase  Agreement,  to issue to the Buyer (i) up to Ten Million Dollars
($10,000,000)  of the  Company's  common  stock,  par value  $___ per share (the
"Common  Stock")  (the  "Purchase  Shares"),  and (ii) such  number of shares of
Common Stock as is required  pursuant to Section 7(b) of the Purchase  Agreement
(the "Commitment Shares"); and

         B. To  induce  the  Buyer to enter  into the  Purchase  Agreement,  the
Company has agreed to provide certain  registration  rights under the Securities
Act of 1933,  as  amended,  and the rules  and  regulations  thereunder,  or any
similar successor statute  (collectively,  the "1933 Act"), and applicable state
securities laws.

         NOW,  THEREFORE,  in  consideration  of the  premises  and  the  mutual
covenants  contained  herein  and other  good and  valuable  consideration,  the
receipt and  sufficiency of which are hereby  acknowledged,  the Company and the
Buyer hereby agree as follows:

         1.       DEFINITIONS.
                  -----------

                  As used in this Agreement,  the following terms shall have the
following meanings:

                  a.  "Investor"  means the Buyer,  any  transferee  or assignee
thereof to whom a Buyer  assigns its rights under this  Agreement and who agrees
to become bound by the provisions of this Agreement in accordance with Section 9
and any transferee or assignee  thereof to whom a transferee or assignee assigns
its rights under this Agreement and who agrees to become bound by the provisions
of this Agreement in accordance with Section 9.

                  b.  "Person"   means  any  person  or  entity   including  any
corporation,  a limited liability  company,  an association,  a partnership,  an
organization, a business, an individual, a governmental or political subdivision
thereof or a governmental agency.

                  c. "Register,"  "registered,"  and  "registration"  refer to a
registration   effected  by  preparing  and  filing  one  or  more  registration
statements of the Company in  compliance  with the 1933 Act and pursuant to Rule
415 under the 1933 Act or any successor rule  providing for offering  securities
on a  continuous  basis  ("Rule  415"),  and  the  declaration  or  ordering  of
effectiveness of such registration  statement(s) by the United States Securities
and Exchange Commission (the "SEC").

                  d.  "Registrable  Securities"  means the Purchase Shares which
have been, or which may from time to time be, issued or issuable upon  purchases
of the  Available  Amount under the Purchase  Agreement  (without  regard to any
limitation or restriction on purchases) and the Commitment  Shares issued to the
Investor at or prior to the  Commencement and any shares of capital stock issued
or issuable with respect to the Purchase  Shares,  the Commitment  Shares or the
Purchase   Agreement   as  a  result  of  any  stock  split,   stock   dividend,
recapitalization,  exchange or similar event or otherwise, without regard to any
limitation on purchases under the Purchase Agreement.

<PAGE>

                  e. "Registration  Statement" means the registration  statement
of the Company  which the Company has agreed to file pursuant to Section 4(a) of
the Purchase Agreement with respect to the sale of the Registrable Securities.

         2.       REGISTRATION.
                  ------------

                  a. Mandatory Registration.  The Company shall use best efforts
to keep the Registration  Statement  effective  pursuant to Rule 415 promulgated
under the 1933 Act and available for sales of all of the Registrable  Securities
at all times until the earlier of (i) the date as of which the Investor may sell
all of the Registrable  Securities without  restriction  pursuant to Rule 144(k)
promulgated under the 1933 Act (or successor  thereto) or (ii) the date on which
(A) the Investor shall have sold all the Registrable Securities and no available
amount remains under the Purchase  Agreement (the  "Registration  Period").  The
Registration  Statement  (including any  amendments or  supplements  thereto and
prospectuses  contained  therein)  shall not contain any untrue  statement  of a
material fact or omit to state a material fact required to be stated therein, or
necessary to make the statements therein, in light of the circumstances in which
they were made, not misleading.

                  b. Rule 424  Prospectus.  The  Company  shall,  as required by
applicable securities regulations, from time to time file with the SEC, pursuant
to Rule 424  promulgated  under  the 1933 Act,  the  prospectus  and  prospectus
supplements,  if any,  to be used in  connection  with sales of the  Registrable
Securities under the Registration Statement.  The Investor and its counsel shall
have a reasonable  opportunity to review and comment upon such prospectus  prior
to its filing with the SEC. The Investor shall use its  reasonable  best efforts
to comment  upon such  prospectus  within one (1)  Trading Day from the date the
Investor receives the final version of such prospectus.

                  c. Sufficient  Number of Shares  Registered.  In the event the
number of shares available under the  Registration  Statement is insufficient to
cover  all  of  the  Registrable   Securities,   the  Company  shall  amend  the
Registration Statement or file a new registration statement (a "New Registration
Statement"),  so as to  cover  all of  such  Registrable  Securities  as soon as
practicable,  but in any event not later  than ten (10)  Trading  Days after the
necessity  therefor arises.  The Company shall use it best efforts to cause such
amendment  and/or New  Registration  Statement  to become  effective  as soon as
practicable  following  the filing  thereof.  The Investor and its counsel shall
have a  reasonable  opportunity  to review and comment  upon any such  amendment
and/or New Registration Statement prior to its filing with the SEC. The Investor
shall use its reasonable best efforts to comment upon any such amendment  and/or
New  Registration  Statement  within  two (2)  Trading  Days  from  the date the
Investor   receives  the  final  version  of  any  such  amendment   and/or  New
Registration Statement.

         3.       RELATED OBLIGATIONS.
                  -------------------

         With respect to the Registration Statement and whenever any Registrable
Securities  are to be registered  pursuant to Section 2(b)  including on any New
Registration  Statement,  the Company shall use its  reasonable  best efforts to
effect the  registration  of the  Registrable  Securities in accordance with the
intended method of disposition thereof and, pursuant thereto,  the Company shall
have the following obligations:

                  a.  The  Company  shall  prepare  and  file  with the SEC such
amendments  (including   post-effective   amendments)  and  supplements  to  any
registration   statement  and  the  prospectus  used  in  connection  with  such
registration  statement,  which  prospectus is to be filed  pursuant to Rule 424
promulgated  under the 1933 Act, as may be  necessary  to keep the  Registration
Statement or any New  Registration  Statement  effective at all times during the
Registration Period, and, during such period,  comply with the provisions of the
1933 Act with respect to the  disposition of all  Registrable  Securities of the
Company covered by the Registration  Statement or any New Registration Statement
until such time as all of such  Registrable  Securities shall have been disposed
of in  accordance  with the  intended  methods of  disposition  by the seller or
sellers thereof as set forth in such registration statement.

<PAGE>

                  b. The Company shall permit the Investor to review and comment
upon  the  Registration  Statement  or any New  Registration  Statement  and all
amendments and supplements  thereto at least two (2) Trading Days prior to their
filing  with the SEC,  and not file  any  document  in a form to which  Investor
reasonably  objects.  The  Investor  shall use its  reasonable  best  efforts to
comment upon the Registration  Statement or any New  Registration  Statement and
any amendments or supplements  thereto within two (2) Trading Days from the date
the Investor  receives the final version  thereof.  The Company shall furnish to
the Investor, without charge any correspondence from the SEC or the staff of the
SEC to the Company or its representatives relating to the Registration Statement
or any New Registration Statement.

                  c. The Company  shall  furnish to the  Investor,  (i) promptly
after the same is  prepared  and filed  with the SEC,  at least one copy of such
registration  statement  and  any  amendment(s)  thereto,   including  financial
statements and schedules,  all documents  incorporated  therein by reference and
all exhibits,  (ii) upon the  effectiveness of any registration  statement,  ten
(10) copies of the prospectus  included in such  registration  statement and all
amendments  and  supplements  thereto  (or such  other  number  of copies as the
Investor  may  reasonably  request)  and (iii) such other  documents,  including
copies of any  preliminary or final  prospectus,  as the Investor may reasonably
request  from  time  to time in  order  to  facilitate  the  disposition  of the
Registrable Securities owned by the Investor.

                  d. The  Company  shall  use  reasonable  best  efforts  to (i)
register  and  qualify  the  Registrable  Securities  covered by a  registration
statement under such other  securities or "blue sky" laws of such  jurisdictions
in the United States as the Investor reasonably requests,  (ii) prepare and file
in those jurisdictions,  such amendments (including  post-effective  amendments)
and supplements to such  registrations and qualifications as may be necessary to
maintain the effectiveness  thereof during the Registration  Period,  (iii) take
such other  actions as may be  necessary  to  maintain  such  registrations  and
qualifications in effect at all times during the Registration  Period,  and (iv)
take all  other  actions  reasonably  necessary  or  advisable  to  qualify  the
Registrable Securities for sale in such jurisdictions;  provided,  however, that
the  Company  shall not be required in  connection  therewith  or as a condition
thereto to (x)  qualify to do business  in any  jurisdiction  where it would not
otherwise be required to qualify but for this Section 3(d),  (y) subject  itself
to general taxation in any such  jurisdiction,  or (z) file a general consent to
service of process in any such  jurisdiction.  The Company shall promptly notify
the Investor who holds  Registrable  Securities of the receipt by the Company of
any  notification  with  respect  to  the  suspension  of  the  registration  or
qualification of any of the Registrable Securities for sale under the securities
or "blue sky" laws of any  jurisdiction  in the United  States or its receipt of
actual  notice of the  initiation  or  threatening  of any  proceeding  for such
purpose.

                  e. As promptly as  practicable  after  becoming  aware of such
event or facts,  the  Company  shall  notify  the  Investor  in  writing  of the
happening  of any  event or  existence  of such  facts as a result  of which the
prospectus included in any registration  statement,  as then in effect, includes
an  untrue  statement  of a  material  fact or omits to  state a  material  fact
required to be stated  therein or necessary to make the statements  therein,  in
light of the  circumstances  under  which they were made,  not  misleading,  and
promptly  prepare a supplement  or amendment to such  registration  statement to
correct such untrue  statement or omission,  and deliver ten (10) copies of such
supplement  or  amendment to the Investor (or such other number of copies as the
Investor may  reasonably  request).  The Company shall also promptly  notify the
Investor  in writing  (i) when a  prospectus  or any  prospectus  supplement  or
post-effective  amendment has been filed,  and when a registration  statement or
any  post-effective   amendment  has  become  effective  (notification  of  such
effectiveness shall be delivered to the Investor by facsimile on the same day of
such  effectiveness  and by overnight mail),  (ii) of any request by the SEC for
amendments or supplements to any registration statement or related prospectus or
related information,  and (iii) of the Company's reasonable determination that a
post-effective amendment to a registration statement would be appropriate.

<PAGE>

                  f. The  Company  shall  use its  reasonable  best  efforts  to
prevent the issuance of any stop order or other  suspension of  effectiveness of
any  registration  statement,  or the  suspension  of the  qualification  of any
Registrable  Securities  for sale in any  jurisdiction  and, if such an order or
suspension  is issued,  to obtain the  withdrawal of such order or suspension at
the earliest  possible moment and to notify the Investor of the issuance of such
order  and the  resolution  thereof  or its  receipt  of  actual  notice  of the
initiation or threat of any proceeding for such purpose.

                  g. The Company shall (i) cause all the Registrable  Securities
to be listed on each securities  exchange on which  securities of the same class
or series issued by the Company are then listed,  if any, if the listing of such
Registrable  Securities is then permitted  under the rules of such exchange,  or
(ii) secure  designation and quotation of all the Registrable  Securities on the
Nasdaq  SmallCap  System.  The  Company  shall  pay all  fees  and  expenses  in
connection with satisfying its obligation under this Section.

                  h. The Company shall cooperate with the Investor to facilitate
the timely preparation and delivery of certificates (not bearing any restrictive
legend)  representing  the Registrable  Securities to be offered pursuant to any
registration  statement and enable such certificates to be in such denominations
or amounts as the Investor may  reasonably  request and registered in such names
as the Investor may request.

                  i. The Company shall at all times provide a transfer agent and
registrar with respect to its Common Stock.

                  j. If reasonably requested by the Investor,  the Company shall
(i)  immediately  incorporate  in  a  prospectus  supplement  or  post-effective
amendment such  information as the Investor  believes should be included therein
relating to the sale and  distribution  of  Registrable  Securities,  including,
without  limitation,  information  with  respect  to the  number of  Registrable
Securities  being sold,  the  purchase  price being paid  therefor and any other
terms of the  offering of the  Registrable  Securities;  (ii) make all  required
filings of such  prospectus  supplement or  post-effective  amendment as soon as
notified of the matters to be  incorporated  in such  prospectus  supplement  or
post-effective  amendment;  and  (iii)  supplement  or  make  amendments  to any
registration statement.

                  k. The Company shall use its reasonable  best efforts to cause
the  Registrable  Securities  covered by the any  registration  statement  to be
registered with or approved by such other  governmental  agencies or authorities
as  may  be  necessary  to  consummate  the  disposition  of  such   Registrable
Securities.

                  l. Within one (1) Trading Day after any registration statement
which includes the Registrable  Securities is ordered  effective by the SEC, the
Company shall deliver, and shall cause legal counsel for the Company to deliver,
to the  transfer  agent  for such  Registrable  Securities  (with  copies to the
Investor)  confirmation  that  such  registration  statement  has been  declared
effective by the SEC in the form attached hereto as Exhibit A.

<PAGE>

                  m.  The  Company  shall  take  all  other  reasonable  actions
necessary to expedite and facilitate  disposition by the Investor of Registrable
Securities pursuant to any registration statement.

         4.       OBLIGATIONS OF THE INVESTOR.
                  ---------------------------

                  a. The  Company  shall  notify the  Investor in writing of the
information the Company reasonably requires from the Investor in connection with
any registration statement hereunder.  The Investor shall furnish to the Company
such information regarding itself, the Registrable Securities held by it and the
intended method of disposition of the Registrable Securities held by it as shall
be reasonably required to effect the registration of such Registrable Securities
and shall execute such  documents in connection  with such  registration  as the
Company may reasonably request.

                  b. The  Investor  agrees  to  cooperate  with the  Company  as
reasonably  requested  by the Company in  connection  with the  preparation  and
filing of any registration statement hereunder.

                  c. The Investor  agrees that,  upon receipt of any notice from
the  Company of the  happening  of any event or  existence  of facts of the kind
described  in Section  3(f) or the first  sentence of 3(e),  the  Investor  will
immediately  discontinue  disposition of Registrable  Securities pursuant to any
registration   statement(s)  covering  such  Registrable  Securities  until  the
Investor's  receipt of the  copies of the  supplemented  or  amended  prospectus
contemplated  by Section  3(f) or the first  sentence  of 3(e).  Notwithstanding
anything to the contrary, the Company shall cause its transfer agent to promptly
deliver shares of Common Stock without any restrictive legend in accordance with
the terms of the Purchase  Agreement in connection  with any sale of Registrable
Securities  with  respect to which an Investor  has entered  into a contract for
sale  prior to the  Investor's  receipt  of a notice  from  the  Company  of the
happening  of any  event of the kind  described  in  Section  3(f) or the  first
sentence of 3(e) and for which the Investor has not yet settled.

         5.       EXPENSES OF REGISTRATION.
                  ------------------------

                  All  reasonable  expenses,   other  than  sales  or  brokerage
commissions,   incurred   in   connection   with   registrations,   filings   or
qualifications pursuant to Sections 2 and 3, including,  without limitation, all
registration, listing and qualifications fees, printers and accounting fees, and
fees and disbursements of counsel for the Company, shall be paid by the Company.

         6.       INDEMNIFICATION.
                  ---------------

                  a. To the fullest  extent  permitted by law, the Company will,
and hereby does, indemnify,  hold harmless and defend the Investor, each Person,
if any,  who controls  the  Investor,  the  members,  the  directors,  officers,
partners, employees, agents, representatives of the Investor and each Person, if
any,  who  controls  the  Investor  within  the  meaning  of the 1933 Act or the
Securities  Exchange  Act of  1934,  as  amended  (the  "1934  Act")  (each,  an
"Indemnified  Person"),  against  any  losses,  claims,  damages,   liabilities,
judgments,  fines,  penalties,  charges, costs, attorneys' fees, amounts paid in
settlement or expenses, joint or several,  (collectively,  "Claims") incurred in
investigating,   preparing  or  defending  any  action,  claim,  suit,  inquiry,
proceeding,  investigation  or appeal taken from the  foregoing by or before any
court or governmental,  administrative or other regulatory  agency,  body or the
SEC,  whether pending or threatened,  whether or not an indemnified  party is or
may be a party thereto ("Indemnified  Damages"), to which any of them may become
subject insofar as such Claims (or actions or proceedings,  whether commenced or
threatened,  in respect  thereof) arise out of or are based upon: (i) any untrue
statement or alleged  untrue  statement of a material  fact in the  Registration
Statement,  any  New  Registration  Statement  or any  post-effective  amendment
thereto  or in any  filing  made in  connection  with the  qualification  of the

<PAGE>

offering  under the securities or other "blue sky" laws of any  jurisdiction  in
which Registrable Securities are offered ("Blue Sky Filing"), or the omission or
alleged  omission  to state a material  fact  required  to be stated  therein or
necessary  to make the  statements  therein  not  misleading,  (ii)  any  untrue
statement  or alleged  untrue  statement  of a material  fact  contained  in any
preliminary  prospectus if used prior to the effective date of such registration
statement, or contained in the final prospectus (as amended or supplemented,  if
the Company files any amendment  thereof or supplement  thereto with the SEC) or
the omission or alleged omission to state therein any material fact necessary to
make the statements made therein,  in light of the circumstances under which the
statements  therein were made,  not  misleading,  (iii) any violation or alleged
violation  by the  Company  of the  1933  Act,  the 1934  Act,  any  other  law,
including,  without  limitation,  any  state  securities  law,  or any  rule  or
regulation  thereunder  relating  to  the  offer  or  sale  of  the  Registrable
Securities  pursuant  to the  Registration  Statement  or any  New  Registration
Statement or (iv) any material  violation of this  Agreement (the matters in the
foregoing  clauses (i)  through  (iv) being,  collectively,  "Violations").  The
Company shall  reimburse each  Indemnified  Person promptly as such expenses are
incurred  and are due  and  payable,  for any  legal  fees or  other  reasonable
expenses incurred by them in connection with investigating or defending any such
Claim.   Notwithstanding   anything  to  the  contrary   contained  herein,  the
indemnification agreement contained in this Section 6(a): (i) shall not apply to
a Claim by an Indemnified  Person arising out of or based upon a Violation which
occurs in reliance upon and in conformity with information  furnished in writing
to the Company by such  Indemnified  Person expressly for use in connection with
the preparation of the Registration Statement, any New Registration Statement or
any such amendment thereof or supplement  thereto, if such prospectus was timely
made available by the Company pursuant to Section 3(c); (ii) with respect to any
preliminary  prospectus,  shall not inure to the benefit of any such person from
whom the person  asserting any such Claim purchased the  Registrable  Securities
that are the subject thereof (or to the benefit of any person  controlling  such
person) if the untrue  statement or omission of material  fact  contained in the
preliminary  prospectus  was  corrected  in the  prospectus,  as then amended or
supplemented,  if such  prospectus  was timely  made  available  by the  Company
pursuant to Section 3(c),  and the  Indemnified  Person was promptly  advised in
writing not to use the  incorrect  prospectus  prior to the use giving rise to a
violation and such Indemnified  Person,  notwithstanding  such advice,  used it;
(iii) shall not be  available  to the extent such Claim is based on a failure of
the  Investor  to  deliver  or to  cause to be  delivered  the  prospectus  made
available by the Company,  if such  prospectus  was timely made available by the
Company  pursuant to Section  3(c);  and (iv) shall not apply to amounts paid in
settlement of any Claim if such settlement is effected without the prior written
consent of the Company, which consent shall not be unreasonably  withheld.  Such
indemnity shall remain in full force and effect  regardless of any investigation
made by or on behalf of the Indemnified Person and shall survive the transfer of
the Registrable Securities by the Investor pursuant to Section 9.

                  b. In connection  with the  Registration  Statement or any New
Registration  Statement,  the  Investor  agrees  to  severally  and not  jointly
indemnify,  hold harmless and defend,  to the same extent and in the same manner
as is set forth in Section 6(a), the Company, each of its directors, each of its
officers who signs the Registration Statement or any New Registration Statement,
each Person, if any, who controls the Company within the meaning of the 1933 Act
or the 1934 Act  (collectively  and  together  with an  Indemnified  Person,  an
"Indemnified  Party"),  against any Claim or Indemnified Damages to which any of
them may become subject, under the 1933 Act, the 1934 Act or otherwise,  insofar
as such  Claim  or  Indemnified  Damages  arise  out of or are  based  upon  any
Violation,  in each  case to the  extent,  and  only to the  extent,  that  such
Violation  occurs in reliance  upon and in conformity  with written  information
furnished to the Company by the Investor  expressly for use in  connection  with
such  registration  statement;  and,  subject to Section 6(d), the Investor will
reimburse any legal or other expenses  reasonably incurred by them in connection
with  investigating  or defending any such Claim;  provided,  however,  that the
indemnity  agreement  contained  in this  Section  6(b) and the  agreement  with
respect to  contribution  contained in Section 7 shall not apply to amounts paid
in  settlement  of any Claim if such  settlement  is effected  without the prior
written  consent  of the  Investor,  which  consent  shall  not be  unreasonably
withheld;  provided,  further,  however, that the Investor shall be liable under
this Section 6(b) for only that amount of a Claim or Indemnified Damages as does
not  exceed  the  net  proceeds  to the  Investor  as a  result  of the  sale of
Registrable Securities pursuant to such registration  statement.  Such indemnity
shall remain in full force and effect regardless of any investigation made by or
on  behalf of such  Indemnified  Party and shall  survive  the  transfer  of the
Registrable Securities by the Investor pursuant to Section 9.

<PAGE>

                  c.  Promptly  after  receipt  by  an  Indemnified   Person  or
Indemnified  Party  under this  Section 6 of notice of the  commencement  of any
action or proceeding (including any governmental action or proceeding) involving
a Claim,  such  Indemnified  Person or  Indemnified  Party shall,  if a Claim in
respect thereof is to be made against any indemnifying  party under this Section
6,  deliver  to the  indemnifying  party a written  notice  of the  commencement
thereof, and the indemnifying party shall have the right to participate in, and,
to the  extent  the  indemnifying  party so  desires,  jointly  with  any  other
indemnifying party similarly  noticed,  to assume control of the defense thereof
with counsel mutually satisfactory to the indemnifying party and the Indemnified
Person or the Indemnified Party, as the case may be; provided,  however, that an
Indemnified  Person or Indemnified  Party shall have the right to retain its own
counsel with the fees and expenses to be paid by the indemnifying  party, if, in
the  reasonable  opinion of counsel  retained  by the  indemnifying  party,  the
representation  by such counsel of the Indemnified  Person or Indemnified  Party
and the  indemnifying  party would be  inappropriate  due to actual or potential
differing interests between such Indemnified Person or Indemnified Party and any
other party  represented  by such counsel in such  proceeding.  The  Indemnified
Party or Indemnified Person shall cooperate fully with the indemnifying party in
connection  with any  negotiation  or defense of any such action or claim by the
indemnifying  party and shall furnish to the indemnifying  party all information
reasonably  available  to the  Indemnified  Party or  Indemnified  Person  which
relates  to such  action  or  claim.  The  indemnifying  party  shall  keep  the
Indemnified  Party or  Indemnified  Person fully apprised at all times as to the
status of the defense or any settlement  negotiations  with respect thereto.  No
indemnifying  party shall be liable for any  settlement of any action,  claim or
proceeding  effected without its written consent,  provided,  however,  that the
indemnifying  party shall not  unreasonably  withhold,  delay or  condition  its
consent.  No  indemnifying  party shall,  without the consent of the Indemnified
Party or Indemnified Person,  consent to entry of any judgment or enter into any
settlement or other compromise  which does not include as an unconditional  term
thereof the giving by the  claimant or plaintiff  to such  Indemnified  Party or
Indemnified  Person of a release from all  liability in respect to such claim or
litigation.   Following   indemnification   as  provided  for   hereunder,   the
indemnifying party shall be subrogated to all rights of the Indemnified Party or
Indemnified  Person with  respect to all third  parties,  firms or  corporations
relating to the matter for which  indemnification  has been made. The failure to
deliver written notice to the indemnifying party within a reasonable time of the
commencement of any such action shall not relieve such indemnifying party of any
liability to the Indemnified  Person or Indemnified  Party under this Section 6,
except to the extent that the indemnifying party is prejudiced in its ability to
defend such action.

                  d. The  indemnification  required  by this  Section 6 shall be
made by  periodic  payments  of the  amount  thereof  during  the  course of the
investigation or defense,  as and when bills are received or Indemnified Damages
are incurred.

                  e.  The  indemnity  agreements  contained  herein  shall be in
addition to (i) any cause of action or similar right of the Indemnified Party or
Indemnified  Person  against  the  indemnifying  party or  others,  and (ii) any
liabilities the indemnifying party may be subject to pursuant to the law.

         7.       CONTRIBUTION.
                  ------------

                  To the extent any  indemnification by an indemnifying party is
prohibited or limited by law, the indemnifying  party agrees to make the maximum
contribution  with respect to any amounts for which it would otherwise be liable
under Section 6 to the fullest extent permitted by law; provided, however, that:
(i) no seller of Registrable  Securities guilty of fraudulent  misrepresentation
(within  the  meaning of Section  11(f) of the 1933 Act)  shall be  entitled  to
contribution  from any seller of  Registrable  Securities  who was not guilty of
fraudulent misrepresentation; and (ii) contribution by any seller of Registrable
Securities shall be limited in amount to the net amount of proceeds  received by
such seller from the sale of such Registrable Securities.

<PAGE>

         8.       REPORTS AND DISCLOSURE UNDER THE SECURITIES ACTS.
                  ------------------------------------------------

                  With a view to making  available  to the Investor the benefits
of Rule  144  promulgated  under  the  1933  Act or any  other  similar  rule or
regulation  of the  SEC  that  may at any  time  permit  the  Investor  to  sell
securities of the Company to the public without  registration  ("Rule 144"), the
Company agrees to:

                  a. make and keep public information available,  as those terms
are understood and defined in Rule 144;

                  b. file with the SEC in a timely  manner all reports and other
documents required of the Company under the 1933 Act and the 1934 Act so long as
the Company remains subject to such  requirements and the filing of such reports
and other documents is required for the applicable provisions of Rule 144; and

                  c.  furnish  to the  Investor  so  long as the  Investor  owns
Registrable  Securities,  promptly upon request,  (i) a written statement by the
Company that it has complied with the reporting and or disclosure  provisions of
Rule 144, the 1933 Act and the 1934 Act,  (ii) a copy of the most recent  annual
or quarterly report of the Company and such other reports and documents so filed
by the Company,  and (iii) such other information as may be reasonably requested
to permit the  Investor  to sell such  securities  pursuant  to Rule 144 without
registration.

         9.       ASSIGNMENT OF REGISTRATION RIGHTS.
                  ---------------------------------

                  The  rights  under  this  Agreement  shall  be   automatically
assignable  by  the  Investor  to any  transferee  of  all  or  any  portion  of
Registrable  Securities  if:  (i)  the  Investor  agrees  in  writing  with  the
transferee  or assignee to assign such rights,  and a copy of such  agreement is
furnished to the Company within a reasonable  time after such  assignment;  (ii)
the Company is,  within a  reasonable  time after such  transfer or  assignment,
furnished with written notice of (a) the name and address of such  transferee or
assignee,  and (b) the securities with respect to which such registration rights
are being transferred or assigned;  (iii) immediately following such transfer or
assignment  the further  disposition  of such  securities  by the  transferee or
assignee is restricted  under the 1933 Act and applicable state securities laws;
(iv) at or before the time the Company receives the written notice  contemplated
by clause (ii) of this  sentence the  transferee  or assignee  agrees in writing
with the Company to be bound by all of the provisions  contained herein; and (v)
such  transfer   shall  have  been  made  in  accordance   with  the  applicable
requirements of the Master Facility Agreement.

         10.      AMENDMENT OF REGISTRATION RIGHTS.
                  --------------------------------

                  Provisions of this Agreement may be amended and the observance
thereof may be waived (either  generally or in a particular  instance and either
retroactively  or  prospectively),  only with the written consent of the Company
and the Investor.

<PAGE>

         11.      MISCELLANEOUS.
                  -------------

                  a. A Person is deemed to be a holder of Registrable Securities
whenever  such  Person  owns or is  deemed  to own of  record  such  Registrable
Securities.  If  the  Company  receives  conflicting  instructions,  notices  or
elections  from  two or  more  Persons  with  respect  to the  same  Registrable
Securities,  the  Company  shall act upon the basis of  instructions,  notice or
election received from the registered owner of such Registrable Securities.

                  b. Any  notices,  consents,  waivers  or other  communications
required or permitted to be given under the terms of this  Agreement  must be in
writing  and will be deemed  to have  been  delivered:  (i) upon  receipt,  when
delivered  personally;  (ii)  upon  receipt,  when sent by  facsimile  (provided
confirmation of transmission  is  mechanically or  electronically  generated and
kept on file by the sending  party);  or (iii) one (1) Trading Day after deposit
with a nationally  recognized  overnight delivery service, in each case properly
addressed to the party to receive the same. The addresses and facsimile  numbers
for such communications shall be:

         If to the Company:
                  Steroidogenesis Inhibitors International, Inc.
                  Bank of America Building
                  101 Convention Center Drive, S.310
                  Las Vegas, NV 89109
                  Telephone:        702-735-7006
                  Facsimile:        702-737-7016
                  Attention:        Janet Greeson

         With a copy to:
                  _________
                  _________
                  _________
                  Telephone:        _________
                  Facsimile:        _________
                  Attention:        _________

         If to the Investor:
                  Fusion Capital Fund II, LLC
                  222 Merchandise Mart Plaza, Suite 9-112
                  Chicago, IL 60654
                  Telephone:        312-644-6644
                  Facsimile:        312-644-6244
                  Attention:        Steven G.  Martin

or at such other address and/or facsimile number and/or to the attention of such
other person as the  recipient  party has  specified by written  notice given to
each other  party  three (3)  Trading  Days prior to the  effectiveness  of such
change.  Written  confirmation  of receipt  (A) given by the  recipient  of such
notice,   consent,   waiver  or  other   communication,   (B)   mechanically  or
electronically  generated by the sender's facsimile machine containing the time,
date,  recipient  facsimile  number  and an  image  of the  first  page  of such
transmission  or (C)  provided by a  nationally  recognized  overnight  delivery
service, shall be rebuttable evidence of personal service,  receipt by facsimile
or receipt from a nationally recognized overnight delivery service in accordance
with clause (i), (ii) or (iii) above, respectively.

<PAGE>

                  c.  Failure of any party to exercise any right or remedy under
this  Agreement or otherwise,  or delay by a party in  exercising  such right or
remedy, shall not operate as a waiver thereof.

                  d. The  corporate  laws of the State of Delaware  shall govern
all issues  concerning the relative rights of the Company and its  stockholders.
All other  questions  concerning the  construction,  validity,  enforcement  and
interpretation  of this Agreement  shall be governed by the internal laws of the
State of Illinois, without giving effect to any choice of law or conflict of law
provision or rule (whether of the State of Illinois or any other  jurisdictions)
that would cause the application of the laws of any jurisdictions other than the
State of  Illinois.  Each party  hereby  irrevocably  submits  to the  exclusive
jurisdiction  of the state and federal courts  sitting the City of Chicago,  for
the adjudication of any dispute hereunder or in connection  herewith or with any
transaction  contemplated  hereby or discussed  herein,  and hereby  irrevocably
waives,  and agrees not to assert in any suit,  action or proceeding,  any claim
that it is not personally  subject to the  jurisdiction of any such court,  that
such suit, action or proceeding is brought in an inconvenient  forum or that the
venue of such  suit,  action  or  proceeding  is  improper.  Each  party  hereby
irrevocably  waives  personal  service of process and consents to process  being
served in any such suit,  action or proceeding by mailing a copy thereof to such
party at the address for such notices to it under this Agreement and agrees that
such service shall constitute good and sufficient  service of process and notice
thereof.  Nothing contained herein shall be deemed to limit in any way any right
to serve  process in any  manner  permitted  by law.  If any  provision  of this
Agreement shall be invalid or unenforceable in any jurisdiction, such invalidity
or  unenforceability  shall not affect the  validity  or  enforceability  of the
remainder  of  this   Agreement  in  that   jurisdiction   or  the  validity  or
enforceability  of any  provision of this  Agreement in any other  jurisdiction.
EACH PARTY HEREBY  IRREVOCABLY  WAIVES ANY RIGHT IT MAY HAVE,  AND AGREES NOT TO
REQUEST,  A JURY  TRIAL FOR THE  ADJUDICATION  OF ANY  DISPUTE  HEREUNDER  OR IN
CONNECTION  HEREWITH  OR  ARISING  OUT OF  THIS  AGREEMENT  OR  ANY  TRANSACTION
CONTEMPLATED HEREBY.

                  e. This Agreement,  and the Purchase Agreement  constitute the
entire  agreement  among the parties  hereto with respect to the subject  matter
hereof  and  thereof.  There  are  no  restrictions,   promises,  warranties  or
undertakings, other than those set forth or referred to herein and therein. This
Agreement  and  the  Purchase  Agreement  supersede  all  prior  agreements  and
understandings  among the  parties  hereto with  respect to the  subject  matter
hereof and thereof.

                  f. Subject to the  requirements  of Section 9, this  Agreement
shall inure to the benefit of and be binding upon the permitted  successors  and
assigns of each of the parties hereto.

                  g. The  headings  in this  Agreement  are for  convenience  of
reference only and shall not limit or otherwise affect the meaning hereof.

                  h. This  Agreement may be executed in identical  counterparts,
each of which shall be deemed an original but all of which shall  constitute one
and the same  agreement.  This  Agreement,  once  executed  by a  party,  may be
delivered to the other party hereto by facsimile  transmission of a copy of this
Agreement bearing the signature of the party so delivering this Agreement.

                  i. Each party  shall do and  perform,  or cause to be done and
performed,  all such further acts and things,  and shall execute and deliver all
such other  agreements,  certificates,  instruments and documents,  as the other
party may reasonably request in order to carry out the intent and accomplish the
purposes of this Agreement and the consummation of the transactions contemplated
hereby.

<PAGE>

                  j. The language  used in this  Agreement  will be deemed to be
the language  chosen by the parties to express  their mutual intent and no rules
of strict construction will be applied against any party.

                  k. This  Agreement  is intended for the benefit of the parties
hereto and their respective permitted successors and assigns, and is not for the
benefit of, nor may any provision hereof be enforced by, any other Person.

                                   * * * * * *






<PAGE>

         IN WITNESS WHEREOF,  the parties have caused this  Registration  Rights
Agreement to be duly executed as of day and year first above written.

                                           THE COMPANY:
                                           -----------

                                           STEROIDOGENESIS INHIBITORS
                                           INTERNATIONAL, INC.

                                           By:______________________
                                           Name:
                                           Title:


                                           BUYER:
                                           -----

                                           FUSION CAPITAL FUND II, LLC
                                           BY: FUSION CAPITAL PARTNERS II, LLC
                                           BY: SGM HOLDINGS CORP.

                                           By:_______________________
                                           Name: Steven G. Martin
                                           Title: President









<PAGE>

                                    EXHIBIT A
                                    ---------

                        TO REGISTRATION RIGHTS AGREEMENT
                        --------------------------------

                         FORM OF NOTICE OF EFFECTIVENESS
                            OF REGISTRATION STATEMENT

[Date]

[TRANSFER AGENT]
________________
________________

Re: [__________]

Ladies and Gentlemen:

          We  are  counsel  to  __________,   a  __________   corporation   (the
"Company"),  and have  represented  the Company in connection  with that certain
Common Stock Purchase Agreement (the "Purchase  Agreement")  entered into by and
among the Company and Fusion  Capital  Fund II, LLC (the  "Holder")  pursuant to
which the Company has agreed to issue to the Holder up to ____  Million  Dollars
($  ,000,000)  of the  Company's  Common  Stock,  par value $____ per share (the
"Common  Stock") (the "Purchase  Shares"),  in accordance  with the terms of the
Purchase Agreement,  and (ii) the Company issued to the Holder _______ shares of
Common Stock (the "Commitment Shares").  Pursuant to the Purchase Agreement, the
Company also has entered into a  Registration  Rights  Agreement with the Holder
(the  "Registration  Rights  Agreement")  pursuant to which the Company  agreed,
among other things,  to register the Purchase  Shares and the Commitment  Shares
under the  Securities  Act of 1933,  as amended (the "1933 Act").  In connection
with the Company's obligations under the Purchase Agreement and the Registration
Rights Agreement,  on _____________,  the Company filed a Registration Statement
(File No.  333-_____________) (the "Registration Statement") with the Securities
and Exchange  Commission (the "SEC") relating to the sale of the Purchase Shares
and the Commitment Shares.

          In connection  with the foregoing,  we advise you that a member of the
SEC's  staff has  advised  us by  telephone  that the SEC has  entered  an order
declaring the Registration Statement effective under the 1933 Act at [ENTER TIME
OF  EFFECTIVENESS]  on [ENTER DATE OF  EFFECTIVENESS]  and we have no knowledge,
after  telephonic  inquiry of a member of the SEC's  staff,  that any stop order
suspending its  effectiveness  has been issued or that any  proceedings for that
purpose are pending  before,  or threatened by, the SEC and the Purchase  Shares
and the Commitment  Shares are available for sale under the 1933 Act pursuant to
the Registration Statement.

          The Buyer has confirmed it shall comply with all  securities  laws and
regulations   applicable  to  it  including   applicable   prospectus   delivery
requirements upon sale of the Commitment Shares or the Purchase Shares.

                                                     Very truly yours,
                                                     [Company Counsel]
                                                     By:____________________
cc:       Fusion Capital Fund II, LLC