LIDAK PHARMACEUTICALS
8-K, 1997-03-10
PHARMACEUTICAL PREPARATIONS
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<PAGE>

            SECURITIES AND EXCHANGE COMMISSION
                    WASHINGTON, DC  20549

                          FORM 8-K

                      CURRENT REPORT
            Pursuant to Section 13 or 15(d) of
            The Securities Exchange Act of 1934

           Date of Report:  February 28, 1997
            (Date of earliest event reported)

                 LIDAK PHARMACEUTICALS
  (Exact name of registrant as specified in its charter)

                        CALIFORNIA
       (State or other jurisdiction of incorporation)

         0-18734                     33-0314804
(Commission File Number)           (IRS Employer
                                 Identification No.)

11077 North Torrey Pines Road, La Jolla, California 92037
    (Address of principal executive offices)     (Zip code)

                     (619) 558-0364
      (Registrants telephone number, including area code)


<PAGE>

Item 5.                 OTHER EVENTS

     On February 28, 1997, LIDAK Pharmaceuticals (the "Company")
announced that it completed a $6.0 million private financing  of
a  three  year  Convertible  Note (the  "Note"),  in  equivalent
principal  amount,  with RGC International  Investors,  LDC,  an
institutional investor, (the "Holder"), pursuant to Regulation D
of  the Securities Act of 1933, as amended.  The share price  of
the  Class  A Common Stock to be issued upon conversion  of  the
Note will be equal to 85% of the average daily closing bid price
of the Company's Class A Common Stock during the seven (7) to
ten (10) -day period immediately prior to the conversion date(s)
when such conversion occurs 90 daysor more after the closing date.
The Holder is also entitled to receive  warrants  exercisable into
one share of  the  Company's Class A Common Stock for each two
shares of Class A Common Stock issued  upon  conversion(s)  of
the  Note.   Each  warrant is exercisable  for a five (5) year
period from issuance  into  one share of Class A Common Stock
at an exercise price of $2.97  per share.

Item 7.FINANCIAL STATEMENTS AND EXHIBITS

(c)    Exhibits

       4.1   Convertible Note, dated February 26, 1997, issued
             by the Company to the Holder.
       4.2   Form of Class G Stock Purchase Warrant
      10.1   Note Purchase Agreement, dated February 26, 1997,
             between the Company and the Holder.
      10.2   Registration Rights Agreement, dated February 26,
             1997, between the Company and the Holder.



                             SIGNATURES


     Pursuant to the requirements of the Securities and Exchange
Act  of 1934, the registrant has duly caused this report  to  be
signed   on   its  behalf  by  the  undersigned  hereunto   duly
authorized.




                             LIDAK PHARMACEUTICALS

Date:  March 10, 1997    By:/s/David H. Katz
                               ------------------------------
                               David H. Katz, M.D.
                               President  and  Chief  Executive
                               Officer



<PAGE>

                        INDEX TO EXHIBITS

Exhibit
4.1       Convertible Note, dated February 26, 1997, issued by
          the Company to RGC International Investors, LDC (the
          "Holder").
4.2       Form of Class G Stock Purchase Warrant
10.1      Note Purchase Agreement, dated February 26, 1997,
          between the Company and the Holder.
10.2      Registration Rights Agreement, dated February 26,
          1997, between the Company and the Holder.




<PAGE>      1


THE  SECURITIES  REPRESENTED BY THIS CERTIFICATE  HAVE  NOT  BEEN
REGISTERED  UNDER THE SECURITIES ACT OF 1933,  AS  AMENDED.   THE
SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT AND MAY NOT BE SOLD,
TRANSFERRED   OR  ASSIGNED  IN  THE  ABSENCE  OF   AN   EFFECTIVE
REGISTRATION  STATEMENT FOR THE SECURITIES UNDER  THE  SECURITIES
ACT   OF  1933,  AS  AMENDED,  OR  AN  OPINION  OF  COUNSEL  THAT
REGISTRATION IS NOT REQUIRED UNDER SAID ACT.

THE  TRANSFER  OF  THIS  NOTE IS RESTRICTED  IN  ACCORDANCE  WITH
SECTION 5.4 HEREOF.

                        CONVERTIBLE NOTE

La Jolla, California                                 $6,000,000.00
February 26, 1997

          FOR VALUE RECEIVED, LIDAK PHARMACEUTICALS, a California
corporation (hereinafter called the "BORROWER"), hereby  promises
to  pay  to  RGC  INTERNATIONAL INVESTORS, LDC, a Cayman  Islands
corporation, or registered assigns (the "HOLDER"), or order,  the
sum of Six Million Dollars ($6,000,000.00), on February 26, 2000,
and to pay interest on the unpaid principal balance hereof at the
rate  of seven percent (7%) per annum from August 26, 1997  until
the  same  becomes due and payable, whether at maturity  or  upon
acceleration  or  by  prepayment or  otherwise.   Interest  shall
commence  accruing  on August 26, 1997, shall be  paid  quarterly
commencing  on  November 26, 1997 and shall be  computed  on  the
basis  of  a 365-day year. Any amount of principal of or interest
on  this  Note which is not paid when due shall bear interest  at
the  rate  of fourteen percent (14%) per annum from the due  date
thereof until the same is paid ("Default Interest'").

           Unless sooner converted in accordance with Article  II
below,  all  payments of principal of and premium,  if  any,  and
interest on this Note shall be made in lawful money of the United
States  of America.  All payments shall be made by wire  transfer
of  immediately available funds to such account as the Holder may
from  time to time designate by written notice in accordance with
the provisions of this Note.  Whenever any amount expressed to be
due  by the terms of this Note is due on any day which is  not  a
business  day,  the  same  shall  instead  be  due  on  the  next
succeeding  day which is a business day and, in the case  of  any
Interest Payment Date which is not the date on which this Note is
paid in full, the extension of the due date thereof shall not  be
taken  into  account for purposes of determining  the  amount  of
interest  due  on  such date.  As used in  this  Note,  the  term
"Business  Day" shall mean any day other than a Saturday,  Sunday
or a day on which


<PAGE> 2


commercial  banks  in The City of New York  are  authorized  or
required by law or executive order to remain closed.

           This  Note  is  issued pursuant  to  a  Note  Purchase
Agreement,  dated  as of February 26, 1997, by  and  between  the
Borrower  and  the original Holder of this Note, as amended  from
time  to  time  in accordance with its terms (the "Note  Purchase
Agreement"),  and  the  Holder of this Note  and  this  Note  are
subject to the terms of the Note Purchase Agreement.  The  Holder
of  this Note may be entitled to the benefits of the Registration
Rights  Agreement,  dated as of February 26,  1997,  between  the
Borrower  and  the  original  Holder  (the  "Registration  Rights
Agreement").

          The following terms shall apply to this Note:
ARTICLE I

                           PREPAYMENT

           1.1   PREPAYMENT.  So long as no Event of Default  (as
defined  herein)  shall  have occurred  and  be  continuing,  the
Borrower  shall have the right, exercisable on not less  than  60
days' written notice to the Holder, at any time after August  26,
1997 to prepay this Note in whole or in any part of not less than
$500,000  principal  amount (or such lesser principal  amount  as
shall  remain unpaid at the time of exercise of such  right),  in
accordance with this Section 1.1.  Any notice of prepayment shall
be delivered to the Holder at its registered address appearing on
the records of the Borrower and shall state (1) that the Borrower
is  exercising  its  right to prepay all  or  a  portion  of  the
principal  amount of this Note, (2) the principal  amount  to  be
prepaid  and (3) the date of prepayment.  On the date  fixed  for
prepayment,  the  Borrower shall make payment of  the  Prepayment
Amount  (as hereinafter defined), and accrued and unpaid interest
on  the  principal amount to be prepaid, to or upon the order  of
the  Holder as specified by the Holder in writing to the Borrower
at  least one business day prior to the prepayment date.  If  the
Borrower exercises its right to prepay all or a portion  of  this
Note,  the Borrower shall make payment to the Holder of an amount
equal  to the sum of (1) the principal amount of this Note to  be
prepaid  PLUS  (2) accrued and unpaid interest on  the  principal
amount  being prepaid and any accrued and unpaid Default Interest
at  the rates provided herein to the prepayment date plus (3)  an
amount equal to 17.64 percent (the "Default Percent") of the  sum
of  the  amounts referred to in the immediately preceding clauses
(1)  and  (2)  (such  sum being referred to  as  the  "Prepayment
Amount").  The Prepayment Amount shall be accompanied by a number
of   Warrants  ("Prepayment  Warrants")  equal  to  50%  of   the
Prepayment Amount divided by the Conversion Price on the date  of
Prepayment.   The  Prepayment Warrants  shall  contain  identical
terms and conditions as the Warrants issuable by Borrower to  the
original  Holder  of this Note upon conversion of  this  Note  in
accordance with Section 2.1 below.  Upon the prepayment  of  less
than  the entire unpaid principal amount of this Note, a new Note
containing  the same date and provisions as this  Note  shall  be
issued by the Borrower to the Holder for the principal balance of
this Note which shall not have been prepaid.


                                2

<PAGE> 3

               Notwithstanding anything above to the contrary, in
the  event that the Board of Directors of the Borrower  does  not
authorize  the issuance of the shares underlying  the  Prepayment
Warrants,  the Borrower shall have no obligation to  issue  same,
but  in  lieu thereof the Default Percent shall be revised upward
to be 21% rather than 17.64%.

                           ARTICLE II

                 CONVERSION AND PURCHASE RIGHTS

          2.1  CONVERSION RIGHT.  The Holder shall have the right
from  and after the date of this Note and then at any time on  or
prior  to the day this Note is paid in full (whether or  not  the
Borrower  has sent a notice of prepayment to the Holder  pursuant
to  Article I hereof), to convert at any time all or from time to
time  any part of the outstanding and unpaid principal amount  of
this  Note  of at least $50,000, or such lesser amount  as  shall
remain  unpaid  at  the  time  of the conversion,  together  with
accrued  and  unpaid interest on this Note at the rates  provided
herein  into units consisting of (a) fully paid and nonassessable
shares of Class A Common Stock, no par value, of the Borrower  as
such  stock exists on the date of issuance of this Note,  or  any
shares  of  capital stock of the Borrower into which  such  stock
shall  hereafter be changed or reclassified (the "Common  Stock")
at  the  conversion  price  determined as  provided  herein  (the
"Conversion Price") and (b) Common Stock Purchase Warrants in the
form attached hereto as Exhibit B (the "Warrants") to purchase  a
number of shares of Common Stock equal to the product obtained by
multiplying  (x)  0.5 TIMES (y) the number of  shares  of  Common
Stock to be issued upon such conversion of this Note (subject  to
adjustment  as provided in the Warrants).  Upon the delivery   by
the  Holder of a Notice of Conversion of Convertible Note in  the
form  attached hereto as Exhibit A, properly completed  and  duly
executed by the Holder (a "Conversion Notice"), the Borrower,  or
its  transfer agent ("Transfer Agent"), shall issue  and,  within
two  business  days after such surrender of this  Note  with  the
Conversion Notice, deliver to or upon the order of the Holder (1)
that number of shares of Common Stock for the portion of the Note
converted as shall be determined in accordance herewith  and  (2)
Warrants  to  purchase  the  number of  shares  of  Common  Stock
provided  herein.   In  lieu of delivering physical  certificates
representing the Common Stock issuable upon conversion,  provided
the  Company's Transfer Agent is participating in the  Depository
Trust Company ("DTC") Fast Automated Securities Transfer ("FAST")
program,  upon request of the Holder and its compliance with  the
provisions contained in this Section 2.1 and in Section 2.4,  the
Company shall use its best efforts to cause its Transfer Agent to
electronically transmit the Common Stock issuable upon conversion
to  the  Holder by crediting the account of Holder's Prime Broker
with DTC through its Deposit Withdrawal Agent Commission ("DWAC")
system.   The number of shares of Common Stock to be issued  upon
each conversion of this Note shall be determined by dividing  the
Conversion Amount by the Conversion Price in effect on  the  date
the Conversion Notice is delivered to the Borrower by the Holder;
PROVIDED, HOWEVER, that in no event shall the Holder of the  Note
be  entitled  to  convert the Note in excess of  that  number  of
shares  upon  conversion of which the sum of (x)  the  number  of
shares  of Common Stock beneficially owned by the Holder and  its
affiliates (other than shares of Common Stock which may be deemed
beneficially  owned  through  the ownership  of  the  unconverted
portion  of the Note and the unexercised portion of the  Warrants
(including any

                                3


<PAGE> 4

Warrants  issuable upon conversion of the Note  with  respect  to
which  the determination of this proviso is being made)) and  (y)
the number of shares of Common Stock issuable upon the conversion
of  the  Note  with  respect to which the determination  of  this
proviso  is  being made, would result in beneficial ownership  by
the  Holder and such Holder's affiliates of more than 4.9% of the
outstanding  shares of Common Stock. For purposes of the  proviso
to the immediately preceding sentence, beneficial ownership shall
be  determined in accordance with Section 13(d) of the Securities
Exchange  Act  of  1934,  as  amended,  and  Regulation  13   D-G
thereunder,  except as otherwise provided in clause (x)  of  such
proviso.  The term Conversion Amount means, with respect  to  any
conversion of this Note, the sum of (1) the principal  amount  of
this Note to be converted in such conversion PLUS (2) accrued and
unpaid  interest, if any, on such principal amount at  the  rates
provided in this Note to the date the Holder gives the Conversion
Notice for such conversion PLUS (3) Default Interest, if any,  on
the interest referred to in the immediately preceding clause (2).

           2.2  CONVERSION PRICE.  The Conversion Price shall  be
(x)  during the period ending on the 90th day following the  date
of  issuance  of  this  Note, the Market  Price  on  the  date  a
Conversion Notice is given (the "Conversion Date"), and (y) after
such  90th day, 85% (eighty-five percent) of the Market Price  on
the Conversion Date.

     For purposes of this Note, the "Market Price" shall mean the
average  of  the closing bid prices for the Common Stock  on  the
Nasdaq  National Market, or on the principal securities  exchange
or  other  securities market on which the Common  Stock  is  then
being  traded, for the seven (7) consecutive Trading Days  ending
one  Trading Day prior to the Conversion Date; PROVIDED, HOWEVER,
that, in the event that the Holder directly or indirectly effects
any   sales  transaction  with  respect  to  the  Common   Stock,
including,   without  limitation,  any  short  sale  or   hedging
transaction  related  thereto, within the  ten  (10)  consecutive
Trading Days ending one Trading Day prior to the Conversion Date,
then the "Market Price" shall  mean such average for the ten (10)
consecutive  Trading Days ending one Trading  Day  prior  to  the
Conversion Date.

      "Trading Day" shall mean any day on which the Common  Stock
may be traded for any period on the Nasdaq National Market, or on
the  principal securities exchange or other securities market  on
which the Common Stock is then being traded.

           2.3   AUTHORIZED SHARES.  The Borrower covenants that,
during the period the conversion right exists, the Borrower  will
reserve for such conversion at all times from its authorized  and
unissued  Common Stock the number of shares of Common  Stock  set
forth  in  Section 2.6 of this Note as the Maximum Share  Amount,
plus  an  amount of shares equal to 50% (fifty percent)  of  such
number in connection with the exercise of Warrants issuable  upon
the   conversion  or  prepayment  of  this  Note.   The  Borrower
represents  that  upon issuance, such shares  will  be  duly  and
validly  issued,  fully  paid and non-assessable.   The  Borrower
agrees  that  its  issuance of this Note  shall  constitute  full
authority  to  its officers and agents who are charged  with  the
duty  of  executing stock certificates to execute and  issue  the
necessary  certificates  for shares  of  Common  Stock  upon  the
conversion of this Note.


                                4

<PAGE> 5

          2.4  METHOD OF CONVERSION.

                (a)  The right of the Holder to convert this Note
shall  be exercised by delivering to the Borrower or the Transfer
Agent  for  the  Common  Stock a Conversion  Notice  stating  the
principal  amount of this Note which, together with  interest  as
provided  in  this Note, is being converted.  The Borrower  shall
not be required to pay any tax which may be payable in respect of
any  transfer  involved in the issue and delivery  of  shares  of
Common  Stock  or other securities or property on  conversion  of
this  Note in a name other than that of the Holder (or in  street
name), and the Borrower shall not be required to issue or deliver
any  such shares or other securities or property unless and until
the person or persons (other than the Holder or the custodian  in
whose  street  name such shares are to be held for  the  Holder's
account) requesting the issuance thereof shall have paid  to  the
Borrower the amount of any such tax or shall have established  to
the satisfaction of the Borrower that such tax has been paid.

                (b)  If the Holder elects to convert this Note in
accordance with Section 2.1, the Holder shall not be required  to
physically surrender this Note to the Borrower unless the  entire
unpaid principal amount of this Note is so converted.  The Holder
and  the  Borrower shall maintain records showing  the  principal
amount  so converted and the dates of such conversions  or  shall
use  such other method, reasonably satisfactory to the Holder and
the  Borrower,  so as not to require physical surrender  of  this
Note  upon each such conversion.  In the event of any dispute  or
discrepancy,  such records of the Borrower shall  be  controlling
and   determinative   in   the   absence   of   manifest   error.
Notwithstanding  the  foregoing,  in  the  event  that   Borrower
consents  to  the transfer of this Note, if any portion  of  this
Note  is converted as aforesaid, the Holder may not transfer this
Note  unless the Holder first physically surrenders this Note  to
the  Borrower,  whereupon the Borrower will forthwith  issue  and
deliver  upon the order of the Holder a new note of  like  tenor,
registered  as  the  Holder (upon payment by the  Holder  of  any
applicable  transfer  taxes)  may request,  representing  in  the
aggregate  the  remaining unpaid principal amount of  this  Note.
The  Holder  and  any  assignee,  by  acceptance  of  this  Note,
acknowledge and agree that, by reason of the provisions  of  this
paragraph,  following conversion of a portion of this  Note,  the
unpaid  and unconverted principal amount of this Note represented
by  this  Note  may be less than the amount stated  on  the  face
hereof.

               (c)  In case of any consolidation or merger of the
Borrower  with  any other corporation (other than a  wholly-owned
subsidiary  of  the Borrower) in which the Borrower  is  not  the
surviving corporation, or in case of any sale or transfer of  all
or  substantially all of the assets of the Borrower,  or  in  the
case  of  any  share  exchange  pursuant  to  which  all  of  the
outstanding  shares  of  Common Stock are  converted  into  other
securities  or  property,  the Borrower  shall  make  appropriate
provision or cause appropriate provision to be made so  that  the
Holder shall have the right thereafter to convert this Note  into
the  kind  of  shares of stock and other securities and  property
receivable  upon  such consolidation, merger, sale,  transfer  or
share  exchange by the persons who were holders of  Common  Stock
immediately  prior  to the effective date of such  consolidation,
merger, sale, transfer or share exchange (any such securities are
referred to herein as the "Exchange Securities") and on  a  basis
which preserves the economic benefits of the conversion rights of
the

                                5

<PAGE> 6

Holder  on a basis as nearly as practical as such rights  existed
prior  to  such  consolidation, merger, sale, transfer  or  share
exchange.  If, in connection with any such consolidation, merger,
sale, transfer or share exchange, each holder of shares of Common
Stock is entitled to elect to receive either securities, cash  or
other  assets  upon completion of such transaction, the  Borrower
shall provide or cause to be provided to the Holder the right  to
elect  the securities, cash or other assets into which this  Note
shall be convertible after completion of any such transaction  on
the  same terms and subject to the same conditions applicable  to
holders  of  the  Common  Stock (including,  without  limitation,
notice of the right to elect, limitations on the period in  which
such  election  shall  be  made, and the  effect  of  failing  to
exercise  the election).  The Borrower shall not effect any  such
transaction  unless  the provisions of this paragraph  have  been
complied  with.   The above provisions shall similarly  apply  to
successive  consolidations, mergers, sales,  transfers  or  share
exchanges.

           Whenever the Borrower shall propose to take any of the
actions  specified  in this Section 2.4(c),  the  Borrower  shall
cause a notice to be mailed at least 10 days prior to the date on
which  the books of the Borrower will close or on which a  record
will  be taken for such action, to the Holder.  Such notice shall
specify  the action proposed to be taken by the Borrower and  the
date  as  of  which holders of record of the Common  Stock  shall
participate in any such actions or be entitled to exchange  their
Common  Stock for securities or other property, as the  case  may
be.  Failure by the Borrower to mail the notice or any defect  in
such notice shall not affect the validity of the transaction.

                (d)   Upon  receipt by the Borrower  or  Transfer
Agent from the Holder of a facsimile transmission of a Conversion
Notice  meeting  the requirements for conversion as  provided  in
Section  2.1 and this Section 2.4, the Borrower shall  issue  and
deliver  or  cause  to  be  issued and delivered  to  the  Holder
certificates  for the Common Stock issuable upon such  conversion
within  two  business days after such receipt  and  otherwise  in
accordance  with the Note Purchase Agreement (including,  without
limitation,  in accordance with the requirement that certificates
for  shares of Common Stock issued on or after the effective date
of  the  Registration Statement (pursuant to Section 2(a) of  the
Registration Rights Agreement) upon conversion of this Note shall
not  bear  any  restrictive  legend,  provided  that  the  Holder
provides,  together  with  the Notice of  Conversion,  a  written
representation  that such shares have been or  will  be  sold  in
accordance  with applicable prospectus delivery requirements,  if
any),  and the Holder shall be deemed to be the holder of  record
of   the   Common  Stock  issuable  upon  such  conversion,   the
outstanding principal amount and the amount of accrued and unpaid
interest   on  this  Note  shall  be  reduced  to  reflect   such
conversion,  and, unless the Company defaults on its  obligations
under this Article II, all rights with respect to the portion  of
this Note being so converted shall forthwith terminate except the
right  to receive the Common Stock or other securities,  cash  or
other  assets,  as herein provided, on such conversion.   If  the
Holder  shall have given a Conversion Notice as provided  herein,
the  Borrower's obligation to issue and deliver the  certificates
for   Common   Stock   shall  be  absolute   and   unconditional,
irrespective  of  the  absence of any action  by  the  Holder  to
enforce  the  same,  any waiver or consent with  respect  to  any
provision  thereof,  the  recovery of any  judgment  against  any
person or any action to enforce the same, any failure or delay in
the  enforcement of any other obligation of the Borrower  to  the
holder  of  record,  or  any  setoff,  counterclaim,  recoupment,
limitation or termination, or any breach or alleged breach by the
Holder of any obligation to the Borrower, and irrespective of any
other circumstance which might otherwise limit such obligation of
the  Borrower  to the Holder in connection with such  conversion.
The  date  of  receipt  of such Conversion Notice  shall  be  the
Conversion  Date so long as it is received before 12:00  midnight
on such date (New York City time).

                                6


<PAGE> 7

               (e)  No fractional shares of Common Stock shall be
issued  upon conversion of this Note but, in lieu of any fraction
of  a share of Common Stock which would otherwise be issuable  in
respect of the aggregate number of such shares converted  at  one
time by the Holder, the Borrower shall round the number of shares
of  Common Stock issued on such conversion up to the next highest
whole share.

          2.5  CONCERNING THE SHARES.  The shares of Common Stock
and  Warrants issuable upon conversion of this Note  may  not  be
sold  or transferred unless either (i) they first shall have been
registered  for  resale  under  the  Act  and  applicable   state
securities laws, (ii) the Borrower shall have been furnished with
an  opinion  of  legal counsel to the effect that  such  sale  or
transfer is exempt from the registration requirements of the  Act
and  all  applicable state securities laws or (iii) the  sale  is
effected  in  accordance  with Rule 144.   Each  certificate  for
shares of Common Stock issuable upon conversion of this Note that
have not been included in an effective registration statement or,
if  not  so  included,  that have not been sold  pursuant  to  an
exemption  that  permits removal of the legend  (and,  in  either
case, that are not then eligible for immediate resale pursuant to
Rule  144(k)), shall bear a legend substantially in the following
form, as appropriate:

          THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT
BEEN  REGISTERED  UNDER THE SECURITIES ACT OF 1933,  AS  AMENDED.
THE  SECURITIES HAVE BEEN ACQUIRED FOR INVESTMENT AND MAY NOT  BE
SOLD,  TRANSFERRED  OR ASSIGNED IN THE ABSENCE  OF  AN  EFFECTIVE
REGISTRATION  STATEMENT FOR THE SECURITIES UNDER  THE  SECURITIES
ACT   OF  1933,  AS  AMENDED,  OR  AN  OPINION  OF  COUNSEL  THAT
REGISTRATION  IS  NOT  REQUIRED UNDER SAID  ACT  OR  UNLESS  SOLD
PURSUANT TO RULE 144.

Upon  the  request of a holder of a certificate representing  any
shares of Common Stock issuable upon conversion of this Note, the
Borrower  shall remove the foregoing legend from the  certificate
or  issue to such holder a new certificate therefor free  of  any
transfer  legend, if, with such request, the Borrower shall  have
received  either  (i)  an  opinion  of  counsel  experienced   in
securities law matters to the effect that any such legend may  be
removed from such certificate, (ii) if the present paragraph  (k)
of  Rule 144 or a substantially similar successor rule remains in
force  and  effect, satisfactory representations from the  holder
that  such  holder  is  not then, and has  not  been  during  the
preceding  three  (3) months, an affiliate of the  Borrower,  and
that  a period of at least three (3) years has elapsed since  the
later  of  the  date the securities were acquired (as  determined
under Rule 144) from the Borrower or an affiliate of the Borrower
or  (iii)  evidence  of  inclusion in an  effective  registration
statement.

           2.6   CERTAIN PAYMENTS IN LIEU OF CONVERSION.   In  no
event shall the Borrower issue more than the Maximum Share Amount
(as  defined below and subject to adjustment as provided  herein)
upon  conversion of this Note (exclusive of shares issuable  upon
exercise  of  Warrants), unless the Borrower shall have  obtained
(in its discretion) Stockholder Approval or a

                                7

<PAGE> 8

waiver  of  such  requirement  by  the  National  Association  of
Securities  Dealers, Inc. ("NASD").  As used herein,  Stockholder
Approval  means approval by the stockholders of the  Borrower  in
accordance with Rule 4460(i) of the rules of the NASD.  Once  the
Maximum  Share Amount has been issued, the remaining  outstanding
principal  amount  of  this Note shall  be  immediately  due  and
payable  and  the Borrower shall pay to the Holder in immediately
available  funds  an amount equal to the Prepayment  Amount  that
would  be  payable pursuant to Section 1.1 on such date plus  the
applicable  number  of Prepayment Warrants.   The  Maximum  Share
Amount shall mean 7,257,465 shares of Common Stock (19.9% of  the
Company's  outstanding shares of Common Stock as of February  17,
1997),  subject  to equitable adjustment from time  to  time  for
stock    splits,    stock   dividends,   combinations,    capital
reorganizations and similar events relating to the  Common  Stock
occurring  after  the  date hereof.  In the event  that  Borrower
obtains  Stockholder Approval, the approval of The  Nasdaq  Stock
Market  or  otherwise concludes that it is able to  increase  the
number  of  shares  to be issued above the Maximum  Share  Amount
(such increased number being the "New Maximum Share Amount"), the
references  to  Maximum Share Amount, above, in the  first  three
sentences  of  this paragraph, shall be deemed  to  be,  instead,
references  to the greater New Maximum Share Amount.  The  amount
of any payment to the Holder will be calculated with reference to
the  outstanding principal amount of this Note to the extent then
eligible for conversion pursuant to Section 2.1 of this  Note  at
the  date  of  the issuance of the New Maximum Share  Amount,  it
being understood that such amount with respect to any portion  of
the  principal amount of this Note not so eligible for conversion
shall  become  payable at the time such portion of the  principal
amount of this Note first becomes so eligible for conversion.  In
the  event  that  Stockholder  Approval  is  not  obtained  or  a
registration statement covering the additional shares  of  Common
Stock  which  constitute  the New Maximum  Share  Amount  is  not
effective  prior to the date on which the Note may  be  converted
pursuant   to  Section  2.1  hereinabove  (if  such  registration
statement  is  necessary to allow for the public resale  of  such
securities),  the  Maximum Share Amount shall  remain  unchanged;
provided, however, that the Holder may grant an extension of  the
effective date of such registration statement.

                          ARTICLE III

                       CERTAIN COVENANTS

           3.1  TENDER OFFERS.  The Borrower will not itself, and
will  not  permit any subsidiary of the Borrower to (1) make  any
tender offer or exchange offer (a "Tender Offer") for outstanding
shares  of  Common  Stock  unless the Borrower  contemporaneously
therewith  makes  an  offer,  or  (2)  enter  into  an  agreement
regarding  a Tender Offer for outstanding shares of Common  Stock
by  any  person other than the Borrower or any subsidiary of  the
Borrower unless such person agrees with the Borrower to  make  an
offer,  in either such case, to the Holder to purchase  the  same
percentage of the outstanding principal amount of this Note  held
by  the  Holder as the percentage of outstanding shares of Common
Stock  offered to be purchased in such Tender Offer, at  a  price
equal  to the product obtained by multiplying (1) the sum of  (a)
the  principal  amount  of this Note to  be  purchased  PLUS  (b)
accrued and unpaid interest on such principal amount to the  date
of purchase PLUS (c) accrued and unpaid Default Interest, if any,
on the amount referred to in the immediately preceding clause (b)
at  the rate provided in this Note to the date of purchase  TIMES
(2) 121%.

                                8


<PAGE> 9

           3.2   DISTRIBUTIONS ON CAPITAL STOCK.  So long as  the
Borrower  shall have any obligation under this Note, the Borrower
shall  not  (a) pay, declare or set apart for such  payment,  any
dividend  (whether  in  cash, property or  other  securities)  on
shares  of capital stock other than dividends on shares of Common
Stock solely in the form of additional shares of Common Stock  or
(b)  directly  or indirectly or through any subsidiary  make  any
other payment or distribution in respect of its capital stock.

          3.3  RESTRICTION ON STOCK REPURCHASES.  So long as this
Note  is outstanding, neither the Borrower nor any subsidiary  of
the  Borrower shall redeem, repurchase (other than pursuant to  a
Tender  Offer, as defined in Section 3.1, which shall be governed
by  Section  3.1) or otherwise acquire (whether for  cash  or  in
exchange  for property or other securities or otherwise)  in  any
one  transaction or series of related transactions any shares  of
capital  stock of the Borrower or any subsidiary of the  Borrower
or  any  warrants, rights or options to purchase or  acquire  any
such shares.

           3.4  CLASS D WARRANT REDEMPTION.  Notwithstanding  the
above  provisions,  nothing contained herein shall  restrict  the
Company from calling for redemption its Class D Warrants.

                           ARTICLE IV

                       EVENTS OF DEFAULT

           If of any of the following events of default (each, an
"EVENT OF DEFAULT") shall occur:

           4.1   FAILURE  TO  PAY  PRINCIPAL  OR  INTEREST.   The
Borrower fails (a) to pay the principal hereof when due,  whether
at  maturity,  upon  redemption,  upon  acceleration  (including,
without limitation, pursuant to Section 2.6) or otherwise or  (b)
to  pay  any installment of interest hereon when due and, in  the
case of this clause (b) only, such failure continues for a period
of five (5) days after the due date hereof;

           4.2  CONVERSION AND THE SHARES.  The Borrower fails to
issue  shares  of  Common Stock to the Holder  or  to  cause  its
Transfer  Agent to issue shares of Common Stock upon exercise  by
the  Holder  of the conversion rights of the Holder in accordance
with  the  terms of this Note, fails to transfer or to cause  its
Transfer  Agent to transfer any certificate for shares of  Common
Stock issued to the Holder upon conversion of this Note and  when
required  by  this Note or the Registration Rights Agreement,  or
fails  to  remove any restrictive legend or to cause its Transfer
Agent  to  transfer on any certificate or any  shares  of  Common
Stock  issued to the Holder upon conversion of this Note  as  and
when  required  by  this Note, the Agreement or the  Registration
Rights Agreement and any such failure shall continue uncured  for
two (2) business days;

           4.3   BREACH  OF COVENANT.  The Borrower breaches  any
material  covenant  or other material term or condition  of  this
Note (other than as specifically provided in Sections 3.1 and 3.2

                                9


<PAGE> 10

hereof),  the Note Purchase Agreement or the Registration  Rights
Agreement  (other  than  breaches  of  the  Registration   Rights
Agreement  occurring subsequent to the date which  is  12  months
after  the  Effective Date so long as the Registration  Statement
remains effective and the prospectus forming part thereof remains
available  for  the sale by the Holder of the  shares  of  Common
Stock  issuable upon conversion of this Note and exercise of  the
Warrants) and such breach continues for a period of ten  business
(10)  days after written notice thereof to the Borrower from  the
Holder,  it being understood that the failure of the Borrower  to
obtain  effectiveness with the Securities and Exchange Commission
of  the Registration Statement within the 90-day period specified
in  Section  2(a)  of the Registration Rights Agreement  for  any
reason  or  to  use  its best efforts to cause such  Registration
Statement  to become effective within such period, without  more,
shall not constitute an Event of Default;

           4.4   BREACH  OF REPRESENTATIONS AND WARRANTIES.   Any
representation or warranty of the Borrower made herein or in  any
agreement,  statement or certificate given  in  writing  pursuant
hereto  or in connection herewith (including, without limitation,
the   Note   Purchase  Agreement  and  the  Registration   Rights
Agreement), shall be false or misleading in any material  respect
when  made and the breach of which would have a material  adverse
effect  on  the  Borrower or the prospects of the Borrower  or  a
material adverse effect on the Holder or the rights of the Holder
with  respect to this Note or the shares of Common Stock issuable
upon conversion of this Note and exercise of the Warrants;

           4.5   CERTAIN VOLUNTARY PROCEEDINGS.  The Borrower  or
any  material  subsidiary  of  the  Borrower  shall  commence   a
voluntary   case   or   other  proceeding  seeking   liquidation,
reorganization  or other relief with respect  to  itself  or  its
debts  under any bankruptcy, insolvency or other similar law  now
or  hereafter in effect or seeking the appointment of a  trustee,
receiver, liquidator, custodian or other similar official  of  it
or  any substantial part of its property, or shall consent to any
such relief or to the appointment of or taking possession by  any
such   official  in  an  involuntary  case  or  other  proceeding
commenced against it, or shall make a general assignment for  the
benefit of creditors, or shall fail generally to pay its debts as
they become due or shall admit in writing its inability generally
to pay its debts as they become due;

           4.6   CERTAIN INVOLUNTARY PROCEEDINGS.  An involuntary
case  or other proceeding shall be commenced against the Borrower
or  any  material subsidiary of the Borrower seeking liquidation,
reorganization or other relief with respect to it  or  its  debts
under  any  bankruptcy, insolvency or other similar  law  now  or
hereafter  in  effect or seeking the appointment  of  a  trustee,
receiver, liquidator, custodian or other similar official  of  it
or  any  substantial part of its property, and  such  involuntary
case  or  other proceeding shall remain undismissed and  unstayed
for a period of sixty (60) consecutive days;

           4.7   JUDGMENTS.  Any money judgment, writ or  similar
process  shall  be entered or filed against the Borrower  or  any
subsidiary of the Borrower or any of its property or other assets
for  more than $500,000, and shall remain unvacated, unbonded  or
unstayed  for  a  period  of twenty (20)  days  unless  otherwise
consented   to  by  the  Holder,  which  consent  will   not   be
unreasonably withheld; or

                               10


<PAGE> 11

          4.8  DELISTING OF COMMON STOCK.  The Common Stock shall
cease  to  be  listed on any of the Nasdaq National  Market,  the
Nasdaq  Small  Cap  Market, the New York Stock  Exchange  or  the
American Stock Exchange;

then upon the occurrence and during the continuation of any Event
of  Default specified in Section 4.1, 4.2, 4.3, 4.4, 4.7 or  4.8,
at  the option of the Holder hereof, the Borrower shall, and upon
the  occurrence of any event of default specified in Section  4.5
or  4.6, the Borrower shall, pay (or issue, as applicable) to the
Holder an amount equal to the sum of (1) the principal amount  of
this  Note to be prepaid PLUS (2) accrued and unpaid interest  on
the  principal  amount being prepaid and any accrued  and  unpaid
Default  Interest at the rates provided herein to the  prepayment
date  PLUS (3) an amount equal to the Default Percent of the  sum
of  the  amounts referred to in the immediately preceding clauses
(1)  and  (2),  PLUS  (4)  the applicable  number  of  Prepayment
Warrants  (based on the product referred to in clause  (3)),  and
all  other amounts payable hereunder shall immediately become due
and  payable, all without demand, presentment or notice,  all  of
which  hereby  are  expressly waived, together  with  all  costs,
including,  without  limitation,  legal  fees  and  expenses,  of
collection,  and  the Holder shall be entitled  to  exercise  all
other rights and remedies available at law or in equity.

           If  the Borrower fails to pay any amounts due pursuant
to  this Article IV within 5 business days of such amounts  being
due  and  payable, then the Holder shall have the  right  at  any
time, so long as the Borrower remains in default, to require  the
Borrower, upon written notice, to immediately issue, in  lieu  of
such  amounts,  the  number of Shares  of  Common  Stock  of  the
Borrower  equal  to  such amounts owed by  the  Borrower  to  the
Holder,  divided by the Market Price of the Common Stock  on  the
date before the date when the notice is sent by the Holder to the
Borrower.   In  the event the Borrower is required  to  so  issue
shares of Common Stock, the Borrower agrees to use its reasonable
best efforts to prepare, file and cause to become effective in  a
timely  manner  a registration statement with the Securities  and
Exchange Commission covering that number of such shares of Common
Stock which may be issued to the Holder pursuant to the preceding
sentence which exceed the amount which is then registered.

           "MARKET  PRICE" shall be 100% of the  average  of  the
closing  bid  prices for the Common Stock on the Nasdaq  National
Market,  or  on  the  principal  securities  exchange  or   other
securities market on which the Common Stock is then being traded,
for the fourteen (14) consecutive Trading Days ending one Trading
Day  prior  to  the  date the notice described in  the  preceding
sentence is sent by  the Holder to the Borrower.

                           ARTICLE V

                         MISCELLANEOUS

           5.1  FAILURE OR INDULGENCY NOT WAIVER.  No failure  or
delay  on  the part of the Holder in the exercise of  any  power,
right  or  privilege hereunder shall operate as a waiver thereof,
nor shall any single or partial exercise of any such power, right
or privilege preclude other or further

                               11

<PAGE> 12

exercise thereof or of any other right, power or privileges.  All
rights and remedies existing hereunder are cumulative to, and not
exclusive of, any rights or remedies otherwise available.

           5.2  NOTICES.  Any notice herein required or permitted
to  be given shall be in writing and may be personally served  or
delivered by courier or sent by United States mail and  shall  be
deemed  to  have  been  given upon receipt if  personally  served
(which  shall  include telephone line facsimile transmission)  or
sent  by courier or three (3) days after being deposited  in  the
United States mail, certified, with postage pre-paid and properly
addressed, if sent by mail.  For the purposes hereof, the address
of  the  Holder shall be as shown on the records of the Borrower;
and  the  address of the Borrower shall be 11077 N. Torrey  Pines
Road,   La   Jolla,   California  92037,  Attention:    President
(facsimile  number  619-453-5845).   Both  the  Holder  and   the
Borrower may change the address for service by service of written
notice to the other as herein provided.

           5.3   DEFINITION  OF NOTE.  The term  "Note"  and  all
references  thereto,  as used throughout this  instrument,  shall
mean  this instrument as originally executed, or if later amended
or supplemented, then as so amended or supplemented.

           5.4   ASSIGNABILITY.  This Note shall be binding  upon
the  Borrower and its successors and assigns.  This Note may  not
be  transferred  or  assigned by Holder except  to  an  affiliate
(including  any  limited partner or shareholder  thereof  in  the
event  of  liquidation  of  the  Holder).   Notwithstanding   the
foregoing,  this Note may be pledged as collateral in  connection
with a bona fide margin account or other lending arrangement.

           5.5   COST OF COLLECTION.  If default is made  in  the
payment  of  this Note, the Borrower shall pay the Holder  hereof
costs of collection, including attorneys' fees.

          5.6  GOVERNING LAW.  This Note shall be governed by the
internal laws of the State of California, without regard  to  the
principles of conflict of laws.

           5.7   CERTAIN AMOUNTS.  Whenever pursuant to this Note
the  Borrower  is  required to pay an amount  in  excess  of  the
outstanding principal amount (or the portion thereof required  to
be  paid  at  that  time) plus accrued and unpaid  interest  plus
Default  Interest on such interest, the Borrower and  the  Holder
agree  that the actual damages to the Holder from the receipt  of
cash  payment on this Note may be difficult to determine and  the
amount  to  be  so  paid  by the Borrower  represents  stipulated
damages  and  not  a  penalty and is intended to  compensate  the
Holder  in part for loss of the opportunity to convert this  Note
and  to  earn  a return from the sale of shares of  Common  Stock
acquired upon conversion of this Note at a price in excess of the
price  paid for such shares pursuant to this Note.  The  Borrower
and  the  Holder  hereby  agree that such  amount  of  stipulated
damages  is not plainly disproportionate to the possible loss  to
the  Holder  from  the  receipt of a  cash  payment  without  the
opportunity to convert this Note into shares of Common Stock.

           5.8   AMENDMENT.  No amendment, modification,  waiver,
discharge  or  termination  of any provision  of  this  Note  nor
consent  to any departure by the Borrower or the Holder therefrom
shall be effective unless the same shall be in writing and signed
by the party to be charged with

                               12

<PAGE> 13

enforcement, and then shall be effective only in  the  specific
instance  and  for  the purpose for which given.   No  course  of
dealing between the Borrower and the Holder shall operate  as  an
amendment of this Note.

          [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]



























                               13

<PAGE> 14

          IN WITNESS WHEREOF, Borrower has caused this Note to be
signed  in its name by its duly authorized officer this 26th  day
of February, 1997.

                                   LIDAK PHARMACEUTICALS


                                   By:  /s/David H. Katz
                                        --------------------      
                                   Name: David H. Katz, M.D.
                                   Its:  President  and  Chief
                                         Executive Officer


























                               14






<PAGE> 1


THIS  WARRANT AND THE SHARES ISSUABLE UPON THE EXERCISE  OF  THIS
WARRANT  HAVE  NOT  BEEN REGISTERED UNDER THE SECURITIES  ACT  OF
1933, AS AMENDED.  EXCEPT AS OTHERWISE SET FORTH HEREIN OR IN THE
NOTE  PURCHASE AGREEMENT DATED AS OF FEBRUARY 26,  1997,  OR  THE
REGISTRATION  RIGHTS AGREEMENT, DATED AS OF  FEBRUARY  26,  1997,
NEITHER  THIS WARRANT NOR ANY OF SUCH SHARES MAY BE SOLD, OFFERED
FOR  SALE, ASSIGNED, TRANSFERRED, OR OTHERWISE DISPOSED OF IN THE
ABSENCE  OF REGISTRATION UNDER SUCH ACT OR AN OPINION OF  COUNSEL
THAT  REGISTRATION IS NOT REQUIRED UNDER SUCH ACT OR UNLESS  SOLD
PURSUANT  TO RULE 144 UNDER SUCH ACT.  ANY SUCH SALE,  ASSIGNMENT
OR  TRANSFER  MUST  ALSO COMPLY WITH APPLICABLE STATE  SECURITIES
LAWS.

                                            Right   to   Purchase
                                            ________Shares of
                                           Common Stock,  no  par
                                           value

                            CLASS G
                     STOCK PURCHASE WARRANT

            THIS   CERTIFIES  THAT,  for  value   received,   RGC
INTERNATIONAL  INVESTORS, LDC, a Cayman Islands  corporation,  or
its  registered assigns (the "Holder"), is entitled  to  purchase
from   LIDAK  PHARMACEUTICALS,  a  California  corporation   (the
"Company"),  at any time or from time to time during  the  period
specified in Paragraph 2 hereof, [before issuance fill in  number
equal to 50% of number of shares issuable upon related conversion
of  note]  (       ) fully paid and nonassessable shares  of  the
Company's  Class  A  Common  Stock, no  par  value  (the  "Common
Stock"),  at an exercise price of $2.97 per share (the  "Exercise
Price").   The term "Warrant Shares", as used herein,  refers  to
the  shares  of Common Stock purchasable hereunder.  The  Warrant
Shares  and  the  Exercise  Price are subject  to  adjustment  as
provided  in  Paragraph 4 hereof.  The term Warrants  means  this
Warrant  and  the  other  warrants of  the  Company  issued  upon
conversion of the Convertible Note, dated February 26,  1997  and
issued by the Company (the "Note").

           This  Warrant  is  subject  to  the  following  terms,
provisions, and conditions:

    1.  MANNER OF EXERCISE; ISSUANCE OF CERTIFICATES; PAYMENT FOR
SHARES.   Subject to the provisions hereof, this Warrant  may  be
exercised by the Holder, in whole or in part, by the surrender of
this Warrant, together with a completed exercise agreement in the
form  attached hereto (the "Exercise Agreement"), to the  Company
during normal business hours on any business day at the Company's
principal  executive offices (or such other office or  agency  of
the Company as





<PAGE> 2


it  may  designate by notice to the Holder), and upon (i) payment
to the Company in cash, by certified or official bank check or by
wire  transfer  for the account of the Company  of  the  Exercise
Price  for the Warrant Shares specified in the Exercise Agreement
or  (ii) if the resale of the Warrant Shares by the Holder is not
then  registered pursuant to an effective registration  statement
under  the  Securities Act of 1933, as amended (the "1933  Act"),
delivery  to  the Company of a written notice of an  election  to
effect  a "Cashless Exercise" (as defined in Section 11(c) below)
for  the Warrant Shares specified in the Exercise Agreement.  The
Warrant Shares so purchased shall be deemed to be issued  to  the
Holder  or  the  Holder's designee, as the record owner  of  such
shares,  as  of the close of business on the date on  which  this
Warrant  shall  have  been surrendered,  the  completed  Exercise
Agreement shall have been delivered, and payment shall have  been
made  for such shares as set forth above.  Certificates  for  the
Warrant Shares so purchased, representing the aggregate number of
shares specified in the Exercise Agreement, shall be delivered to
the  Holder  within  a reasonable time, not exceeding  three  (3)
business  days, after this Warrant shall have been so  exercised.
The  certificates so delivered shall be in such denominations  as
may  be  requested by the Holder and shall be registered  in  the
name  of the Holder or such other name as shall be designated  by
the  Holder.  If this Warrant shall have been exercised  only  in
part,  then, unless this Warrant has expired, the Company  shall,
at  its  expense,  at the time of delivery of such  certificates,
deliver  to the Holder a new Warrant representing the  number  of
shares  with  respect to which this Warrant shall not  then  have
been exercised.

                Notwithstanding anything in this Warrant  to  the
contrary, in no event shall the Holder be entitled to exercise  a
number  of Warrants (or portions thereof) in excess of the number
of  Warrants (or portions thereof) upon exercise of which the sum
of (i) the number of shares of Common Stock beneficially owned by
the  Holder and its affiliates (other than shares of Common Stock
which  may be deemed beneficially owned through the ownership  of
the unexercised Warrants and unconverted portion of the Note) and
(ii)  the number of shares of Common Stock issuable upon exercise
of  the Warrants (or portions thereof) with respect to which  the
determination  described herein is being made,  would  result  in
beneficial  ownership by the Holder and its  affiliates  of  more
than  4.9%  of  the  outstanding shares  of  Common  Stock.   For
purposes   of  the  immediately  preceding  sentence,  beneficial
ownership shall be determined in accordance with Section 13(d) of
the  Securities Exchange Act of 1934, as amended, and  Regulation
13D-G  thereunder,  except as otherwise provided  in  clause  (i)
hereof.

     2.  PERIOD OF EXERCISE.  This Warrant is exercisable at any
time  or  from time to time on or after the earlier  of  (1)  the
first date after February 26, 1997 on which the trading price  of
the Common Stock is $6.00 or more (2) the date that is six months
after February 26, 1997, and in either case before 5:00 p.m., New
York  City  time, on the fifth (5th) anniversary of the  date  of
issuance (the "Exercise Period").

     3.  CERTAIN AGREEMENTS OF THE COMPANY.  The Company hereby
covenants and agrees as follows:





                                   2


<PAGE> 3


     (a) SHARES TO BE FULLY PAID.  All Warrant Shares will, upon
issuance in accordance with the terms of this Warrant, be validly
issued,  fully paid, and nonassessable and free from  all  taxes,
liens, and charges with respect to the issue thereof.

     (b) RESERVATION OF SHARES.  During the Exercise Period, the
Company shall at all times have authorized, and reserved for  the
purpose  of  issuance upon exercise of this Warrant, a sufficient
number  of shares of Common Stock to provide for the exercise  of
this Warrant.

     (c) LISTING.  The Company shall promptly secure the listing
of  the  shares  of Common Stock issuable upon  exercise  of  the
Warrant  upon  each  national securities  exchange  or  automated
quotation  system, if any, upon which shares of Common Stock  are
then listed (subject to official notice of issuance upon exercise
of  this Warrant) and shall maintain, so long as any other shares
of Common Stock shall be so listed, such listing of all shares of
Common Stock from time to time issuable upon the exercise of this
Warrant;   and  the  Company  shall  so  list  on  each  national
securities  exchange or automated quotation system, as  the  case
may  be, and shall maintain such listing of, any other shares  of
capital  stock of the Company issuable upon the exercise of  this
Warrant  if and so long as any shares of the same class shall  be
listed   on   such  national  securities  exchange  or  automated
quotation system.

    (d)  CERTAIN ACTIONS PROHIBITED.  The Company will not, by
amendment of its charter or through any reorganization,  transfer
of  assets, consolidation, merger, dissolution, issue or sale  of
securities, or any other voluntary action, avoid or seek to avoid
the  observance or performance of any of the terms to be observed
or performed by it hereunder, but will at all times in good faith
assist  in the carrying out of all the provisions of this Warrant
and  in  the  taking  of  all such action as  may  reasonably  be
requested  by  the  Holder  in  order  to  protect  the  exercise
privilege  of  the  Holder against dilution or other  impairment,
consistent  with the tenor and purpose of this Warrant.   Without
limiting  the generality of the foregoing, the Company  (i)  will
not  increase  the  par  value  of any  shares  of  Common  Stock
receivable  upon the exercise of this Warrant above the  Exercise
Price then in effect, and (ii) will take all such actions as  may
be necessary or appropriate in order that the Company may validly
and  legally issue fully paid and nonassessable shares of  Common
Stock upon the exercise of this Warrant.

     (e)   SUCCESSORS AND ASSIGNS.  This Warrant will be binding
upon   any   entity   succeeding  to  the  Company   by   merger,
consolidation,  or  acquisition of all or substantially  all  the
Company's assets.

   4.     ANTIDILUTION PROVISIONS.  During the Exercise Period,
the  Exercise  Price and the number of Warrant  Shares  shall  be
subject  to  adjustment from time to time  as  provided  in  this
Paragraph 4.

                In  the event that any adjustment of the Exercise
Price  as  required herein results in a fraction of a cent,  such
Exercise Price shall be rounded up to the nearest cent.

                                     3


<PAGE> 4


    (a)    ADJUSTMENT OF EXERCISE PRICE AND NUMBER OF SHARES UPON
ISSUANCE  OF  COMMON  STOCK.  Except  as  otherwise  provided  in
Paragraphs  4(c)  and 4(e) hereof, if and whenever  on  or  after
February  26, 1997, the Company issues or sells, or in accordance
with Paragraph 4(b) hereof is deemed to have issued or sold,  any
shares   of  Common  Stock  for  no  consideration   or   for   a
consideration per share (before deduction of reasonable  expenses
or   commissions  or  underwriting  discounts  or  allowances  in
connection  therewith) less than the Market Price (as hereinafter
defined)  on  the date of issuance (a "Dilutive Issuance"),  then
immediately upon the Dilutive Issuance, the Exercise  Price  will
be  reduced  to  a price determined by multiplying  the  Exercise
Price in effect immediately prior to the Dilutive Issuance  by  a
fraction,  (i) the numerator of which is an amount equal  to  the
sum  of  (x)  the  number  of  shares of  Common  Stock  actually
outstanding immediately prior to the Dilutive Issuance, plus  (y)
the aggregate consideration, calculated as set forth in Paragraph
4(b) hereof, received by the Company upon such Dilutive Issuance,
divided  by the Market Price in effect immediately prior  to  the
Dilutive Issuance, and (ii) the denominator of which is the total
number  of  shares of Common Stock Deemed Outstanding immediately
after the Dilutive Issuance.

         (b)     EFFECT ON EXERCISE PRICE OF CERTAIN EVENTS.  For
purposes  of  determining  the  adjusted  Exercise  Price   under
Paragraph 4(a) hereof, the following will be applicable:

      (i)  ISSUANCE OF RIGHTS OR OPTIONS.  If the Company in any
manner  issues or grants any warrants, rights or options, whether
or  not  immediately exercisable, to subscribe for or to purchase
Common Stock or other securities convertible into or exchangeable
for  Common  Stock  ("Convertible  Securities")  (such  warrants,
rights  and  options  to  purchase Common  Stock  or  Convertible
Securities  are  hereinafter referred to as  "Options")  and  the
price  per  share  for which Common Stock is  issuable  upon  the
exercise  of  such Options is less than the Market Price  on  the
date  of  issuance, then the maximum total number  of  shares  of
Common Stock issuable upon the exercise of all such Options will,
as  of  the  date  of the issuance or grant of such  Options,  be
deemed to be outstanding and to have been issued and sold by  the
Company  for such price per share.  For purposes of the preceding
sentence, the "price per share for which Common Stock is issuable
upon the exercise of such Options" is determined by dividing  (i)
the  total amount, if any, received or receivable by the  Company
as  consideration  for  the issuance  or  granting  of  all  such
Options,   plus  the  minimum  aggregate  amount  of   additional
consideration, if any, payable to the Company upon  the  exercise
of  all such Options, plus, in the case of Convertible Securities
issuable upon the exercise of such Options, the minimum aggregate
amount of additional consideration payable upon the conversion or
exchange  thereof  at the time such Convertible Securities  first
become  convertible or exchangeable, by (ii)  the  maximum  total
number  of  shares of Common Stock issuable upon the exercise  of
all   such  Options  (assuming  full  conversion  of  Convertible
Securities,  if  applicable).   No  further  adjustment  to   the
Exercise  Price  will be made upon the actual  issuance  of  such
Common  Stock  upon  the exercise of such  Options  or  upon  the
conversion  or  exchange of Convertible Securities issuable  upon
exercise of such Options.

 (ii) ISSUANCE OF CONVERTIBLE SECURITIES.  If the Company in any
manner issues or sells any Convertible Securities, whether or not
immediately convertible (other


                                   4

<PAGE>         5


than  where the same are issuable upon the exercise of Options)
and  the price per share for which Common Stock is issuable  upon
such conversion or exchange is less than the Market Price on  the
date  of  issuance, then the maximum total number  of  shares  of
Common Stock issuable upon the conversion or exchange of all such
Convertible  Securities will, as of the date of the  issuance  of
such  Convertible Securities, be deemed to be outstanding and  to
have  been  issued  and sold by the Company for  such  price  per
share.   For  the purposes of the preceding sentence, the  "price
per share for which Common Stock is issuable upon such conversion
or  exchange" is determined by dividing (i) the total amount,  if
any,  received or receivable by the Company as consideration  for
the issuance or sale of all such Convertible Securities, plus the
minimum  aggregate  amount of additional consideration,  if  any,
payable to the Company upon the conversion or exchange thereof at
the time such Convertible Securities first become convertible  or
exchangeable,  by  (ii) the maximum total  number  of  shares  of
Common Stock issuable upon the conversion or exchange of all such
Convertible  Securities.  No further adjustment to  the  Exercise
Price  will be made upon the actual issuance of such Common Stock
upon conversion or exchange of such Convertible Securities.

          (iii)    CHANGE IN OPTION PRICE OR CONVERSION RATE.  If
there  is  a  change at any time in (i) the amount of  additional
consideration  payable to the Company upon the  exercise  of  any
Options;  (ii)  the amount of additional consideration,  if  any,
payable  to  the Company upon the conversion or exchange  of  any
Convertible   Securities;  or  (iii)  the  rate  at   which   any
Convertible  Securities are convertible into or exchangeable  for
Common  Stock  (other  than  under or  by  reason  of  provisions
designed  to  protect against dilution), the  Exercise  Price  in
effect  at  the  time of such change will be  readjusted  to  the
Exercise  Price which would have been in effect at such time  had
such Options or Convertible Securities still outstanding provided
for  such  changed additional consideration or changed conversion
rate,  as the case may be, at the time initially granted,  issued
or sold.

          (iv)      TREATMENT OF EXPIRED OPTIONS AND UNEXERCISED
CONVERTIBLE  SECURITIES.  If, in any case, the  total  number  of
shares  of  Common Stock issuable upon exercise of any Option  or
upon conversion or exchange of any Convertible Securities is not,
in  fact,  issued and the rights to exercise such  Option  or  to
convert  or  exchange  such  Convertible  Securities  shall  have
expired or terminated, the Exercise Price then in effect will  be
readjusted to the Exercise Price which would have been in  effect
at  the time of such expiration or termination had such Option or
Convertible  Securities,  to the extent  outstanding  immediately
prior to such expiration or termination (other than in respect of
the  actual number of shares of Common Stock issued upon exercise
or conversion thereof), never been issued.

    (v)     CALCULATION OF CONSIDERATION RECEIVED.  If any Common
Stock,  Options or Convertible Securities are issued, granted  or
sold  for  cash, the consideration received therefor for purposes
of  this  Warrant  will  be the amount received  by  the  Company
therefor,    before   deduction   of   reasonable    commissions,
underwriting discounts or allowances or other reasonable expenses
paid or incurred by the Company in connection with such issuance,
grant  or sale.  In case any Common Stock, Options or Convertible
Securities are issued or sold for a consideration part or all  of
which  shall  be other than cash, the amount of the consideration
other than cash received by the Company will be the fair value of
such consideration, except where such


                                   5

<PAGE>         6

consideration consists of securities, in which case the amount of
consideration  received by the Company will be the  Market  Price
thereof  as  of  the date of receipt.  In case any Common  Stock,
Options  or Convertible Securities are issued in connection  with
any merger or consolidation in which the Company is the surviving
corporation, the amount of consideration therefor will be  deemed
to  be  the  fair  value of such portion of the  net  assets  and
business  of the non-surviving corporation as is attributable  to
such Common Stock, Options or Convertible Securities, as the case
may  be.  The fair value of any consideration other than cash  or
securities  will  be determined in good faith  by  the  Board  of
Directors of the Company.

        (vi)      EXCEPTIONS TO ADJUSTMENT OF EXERCISE PRICE.  No
adjustment  to  the  Exercise Price will be  made  (i)  upon  the
exercise  of  any  warrants,  options or  convertible  securities
issued and outstanding on February 26, 1997; (ii) upon the  grant
or  exercise  of  any  stock or options which  may  hereafter  be
granted  or  exercised under any employee  benefit  plan  of  the
Company now existing or to be implemented in the future, so  long
as  the  issuance  of  such stock or options  is  approved  by  a
majority of the independent members of the Board of Directors  of
the  Company  or  a  majority of the members of  a  committee  of
independent  directors established for such purpose;  (iii)  upon
the exercise of the Warrants or the conversion of the Note issued
pursuant to the Note Purchase Agreement, dated as of February 26,
1997,  by and between the Company and the original Holder of  the
Note  (the  "Note Purchase Agreement"), or upon the  issuance  of
Common Stock pursuant to a bona fide firm commitment underwritten
public offering registered under the 1933 Act.

    (c)       SUBDIVISION OR COMBINATION OF COMMON STOCK.  If the
Company  at  any  time  subdivides (by  any  stock  split,  stock
dividend,  recapitalization, reorganization, reclassification  or
otherwise) the shares of Common Stock acquirable hereunder into a
greater  number  of shares, then, after the date  of  record  for
effecting   such  subdivision,  the  Exercise  Price  in   effect
immediately  prior  to such subdivision will  be  proportionately
reduced.   If the Company at any time combines (by reverse  stock
split,  recapitalization,  reorganization,  reclassification   or
otherwise) the shares of Common Stock acquirable hereunder into a
smaller  number  of shares, then, after the date  of  record  for
effecting   such  combination,  the  Exercise  Price  in   effect
immediately  prior  to such combination will  be  proportionately
increased.

  (d)       ADJUSTMENT IN NUMBER OF SHARES.  Upon each adjustment
of  the  Exercise  Price  pursuant  to  the  provisions  of  this
Paragraph  4, the number of shares of Common Stock issuable  upon
exercise  of  this  Warrant shall be adjusted  by  multiplying  a
number equal to the Exercise Price in effect immediately prior to
such  adjustment by the number of shares of Common Stock issuable
upon   exercise  of  this  Warrant  immediately  prior  to   such
adjustment  and dividing the product so obtained by the  adjusted
Exercise Price.

            (e)    CONSOLIDATION, MERGER OR SALE.  In case of any
consolidation of the Company with, or merger of the Company  into
any  other  corporation, or in case of any sale or conveyance  of
all  or substantially all of the assets of the Company other than
in connection with a plan of complete liquidation of the Company,
then  as  a  condition of such consolidation, merger or  sale  or
conveyance,  adequate provision will be made whereby  the  Holder
will have the right to


                                   6


<PAGE>    7



acquire and receive upon exercise of this Warrant in lieu of  the
shares  of  Common Stock immediately theretofore acquirable  upon
the exercise of this Warrant, such shares of stock, securities or
assets as may be issued or payable with respect to or in exchange
for  the number of shares of Common Stock immediately theretofore
acquirable and receivable upon exercise of this Warrant had  such
consolidation, merger or sale or conveyance not taken place.   In
any  such  case, the Company will make appropriate  provision  to
insure  that  the  provisions of this  Paragraph  4  hereof  will
thereafter be applicable as nearly as may be in relation  to  any
shares  of  stock or securities thereafter deliverable  upon  the
exercise  of  this  Warrant.  The Company  will  not  effect  any
consolidation, merger or sale or conveyance unless prior  to  the
consummation  thereof, the successor corporation (if  other  than
the  Company) assumes by written instrument the obligations under
this  Paragraph 4 and the obligations to deliver  to  the  Holder
such shares of stock, securities or assets as, in accordance with
the foregoing provisions, the Holder may be entitled to acquire.

     (f)       DISTRIBUTION OF ASSETS.  In case the Company shall
declare  or make any distribution of its assets (including  cash)
to  holders of Common Stock as a partial liquidating dividend, by
way  of  return of capital or otherwise, then, after the date  of
record   for   determining   stockholders   entitled   to    such
distribution, but prior to the date of distribution,  the  Holder
shall  be entitled upon exercise of this Warrant for the purchase
of  any  or all of the shares of Common Stock subject hereto,  to
receive  the amount of such assets which would have been  payable
to  the  Holder had the Holder been the holder of such shares  of
Common  Stock  on  the  record  date  for  the  determination  of
stockholders entitled to such distribution.

    (g)   NOTICE OF ADJUSTMENT.  Upon the occurrence of any event
which requires any adjustment of the Exercise Price, then, and in
each  such  case, the Company shall give notice  thereof  to  the
Holder,  which  notice shall state the Exercise  Price  resulting
from  such adjustment and the increase or decrease in the  number
of  Warrant  Shares  purchasable at  such  price  upon  exercise,
setting forth in reasonable detail the method of calculation  and
the facts upon which such calculation is based.  Such calculation
shall be certified by the chief financial officer of the Company.

    (h)   MINIMUM ADJUSTMENT OF EXERCISE PRICE.  No adjustment of
the Exercise Price shall be made in an amount of less than 1%  of
the  Exercise  Price  in effect at the time  such  adjustment  is
otherwise  required  to be made, but any such  lesser  adjustment
shall  be  carried  forward and shall be made  at  the  time  and
together with the next subsequent adjustment which, together with
any adjustments so carried forward, shall amount to not less than
1% of such Exercise Price.

    (i)     NO FRACTIONAL SHARES.  No fractional shares of Common
Stock are to be issued upon the exercise of this Warrant, but the
Company  shall pay a cash adjustment in respect of any fractional
share which would otherwise be issuable in an amount equal to the
same  fraction of the Market Price of a share of Common Stock  on
the date of such exercise.

     (j)       OTHER NOTICES.  In case at any time:


                                     7


<PAGE> 8

       (i)  the Company shall declare any dividend upon the Common
Stock  payable in shares of stock of any class or make any  other
distribution  (including  dividends or distributions  payable  in
cash  out  of  retained earnings) to the holders  of  the  Common
Stock;

       (ii)  the Company shall offer for subscription pro rata to
the holders of the Common Stock any additional shares of stock of
any class or other rights;

       (iii)  there shall be any capital reorganization of the
Company,   or   reclassification  of   the   Common   Stock,   or
consolidation or merger of the Company with or into, or  sale  of
all  or  substantially all its assets to, another corporation  or
entity; or

       (iv) there shall be a voluntary or involuntary dissolution,
liquidation or winding up of the Company;

           then, in each such case, the Company shall give to the
Holder  (a) notice of the date on which the books of the  Company
shall  close  or  a  record shall be taken  for  determining  the
holders  of  Common Stock entitled to receive any such  dividend,
distribution,  or  subscription rights  or  for  determining  the
holders  of Common Stock entitled to vote in respect of any  such
reorganization,  reclassification, consolidation,  merger,  sale,
dissolution, liquidation or winding-up and (b) in the case of any
such  reorganization,  reclassification,  consolidation,  merger,
sale, dissolution, liquidation or winding-up, notice of the  date
(or, if not then known, a reasonable approximation thereof by the
Company) when the same shall take place.  Such notice shall  also
specify  the date on which the holders of Common Stock  shall  be
entitled  to receive such dividend, distribution, or subscription
rights  or  to  exchange their Common Stock for  stock  or  other
securities  or  property  deliverable upon  such  reorganization,
reclassification,   consolidation,  merger,  sale,   dissolution,
liquidation,  or  winding-up, as the case may  be.   Such  notice
shall  be given at least 15 days prior to the record date or  the
date  on which the Company's books are closed in respect thereto.
Failure  to give any such notice or any defect therein shall  not
affect  the  validity of the proceedings referred to  in  clauses
(i), (ii), (iii) and (iv) above.

      (k)      CERTAIN EVENTS.  If any event occurs of the type
contemplated by the adjustment provisions of this Paragraph 4 but
not  expressly provided for by such provisions, the Company  will
give  notice of such event as provided in Paragraph 4(g)  hereof,
and  the  Company's Board of Directors will make  an  appropriate
adjustment  in  the Exercise Price and the number  of  shares  of
Common Stock acquirable upon exercise of this Warrant so that the
rights of the Holder shall be neither enhanced nor diminished  by
such event.

     (l)       CERTAIN DEFINITIONS.

      (i) "COMMON STOCK DEEMED OUTSTANDING" shall mean the number
of  shares  of  Common Stock actually outstanding (not  including
shares of Common Stock held in the treasury of the Company), plus
(x)  pursuant  to  Paragraph 4(b)(i) hereof,  the  maximum  total
number  of  shares of Common Stock issuable upon the exercise  of
Options,  as  of  the  date of such issuance  or  grant  of  such
Options,  if any, and (y) pursuant to Paragraph 4(b)(ii)  hereof,
the  maximum total number of shares of Common Stock issuable upon
conversion or exchange of


                                   8

<PAGE> 9

Convertible  Securities,  as of the  date  of  issuance  of  such
Convertible   Securities,  if  any  (whether   the   Options   or
Convertible Securities are actually convertible or exercisable at
such time), excluding any shares issuable upon conversion of  the
Note.

      (ii)  "MARKET PRICE," as of any date, (i) means the average
of  the last reported sale prices for the shares of Common  Stock
as  reported  by  the National Association of Securities  Dealers
Automated  Quotation National Market ("NASDAQ-NMS") for  the  ten
(10) trading days immediately preceding such date, or (ii) if the
NASDAQ-NMS is not the principal trading market for the shares  of
Common Stock, the average of the last reported sale prices on the
principal  trading market for the Common Stock  during  the  same
period, or (iii) if market value cannot be calculated as of  such
date on any of the foregoing bases, the Market Price shall be the
fair  market value as reasonably determined in good faith by  (a)
the Board of Directors of the Corporation or, at the option of  a
majority-in-interest  of the holders of the outstanding  Warrants
by  (b)  an  independent investment bank of nationally recognized
standing  in the valuation of businesses similar to the  business
of the corporation. The manner of determining the Market Price of
the  Common  Stock  set forth in the foregoing  definition  shall
apply  with respect to any other security in respect of  which  a
determination as to market value must be made hereunder.

         (iii)  "COMMON STOCK," for purposes of this Paragraph 4,
includes the Class A Common Stock, par value $.001 per share, and
any additional class of stock of the Company having no preference
as  to  dividends or distributions on liquidation, provided  that
the  shares  purchasable pursuant to this Warrant  shall  include
only  shares  of  Common Stock, par value  $.001  per  share,  in
respect of which this Warrant is exercisable, or shares resulting
from  any subdivision or combination of such Common Stock, or  in
the  case of any reorganization, reclassification, consolidation,
merger,  or  sale of the character referred to in Paragraph  4(e)
hereof, the stock or other securities or property provided for in
such Paragraph.

          5. ISSUE TAX.  The issuance of certificates for Warrant
Shares  upon  the exercise of this Warrant shall be made  without
charge to the Holder or such shares for any issuance tax or other
costs in respect thereof, provided that the Company shall not  be
required  to pay any tax which may be payable in respect  of  any
transfer involved in the issuance and delivery of any certificate
in a name other than the Holder.

          6.     NO RIGHTS OR LIABILITIES AS A SHAREHOLDER.  This
Warrant  shall  not entitle the Holder to any  voting  rights  or
other  rights  as a shareholder of the Company.  No provision  of
this  Warrant, in the absence of affirmative action by the Holder
to purchase Warrant Shares, and no mere enumeration herein of the
rights  or  privileges  of the Holder, shall  give  rise  to  any
liability  of  the  Holder  for  the  Exercise  Price  or  as   a
shareholder of the Company, whether such liability is asserted by
the Company or by creditors of the Company.

          7.  TRANSFER, EXCHANGE, AND REPLACEMENT OF WARRANT.

              (a)  RESTRICTION ON TRANSFER.  On or after the first
anniversary date of the conversion of at least $100,000.00 in the
principal balance of the Note, this Warrant and the related


                                   9

<PAGE> 10


rights granted to the Holder will be transferable, in whole or in
part,  upon  surrender of this Warrant, together with a  properly
executed assignment in the form attached hereto, at the office or
agency  of  the  Company  referred to in  Paragraph  7(e)  below;
PROVIDED,  HOWEVER,  that  any transfer  or  assignment  of  this
Warrant and the related rights granted to the Holder, in whole or
in part, shall (i) cover not less than 100,000 Warrant Shares and
(ii)  be  subject to the conditions set forth in Paragraphs  7(f)
and  7(g)  hereof and to the applicable provisions  of  the  Note
Purchase  Agreement.  Until due presentment for  registration  of
transfer  on the books of the Company, the Company may treat  the
registered  Holder  as  the  owner  and  holder  hereof  for  all
purposes, and the Company shall not be affected by any notice  to
the contrary.  Notwithstanding anything to the contrary contained
herein,  the  registration rights described in  Paragraph  8  are
assignable only in accordance with the provisions of that certain
Registration Rights Agreement, dated as of February 26, 1997,  by
and  among  the  Company and the other signatories  thereto  (the
"Registration Rights Agreement").

     (b)  WARRANT EXCHANGEABLE FOR DIFFERENT DENOMINATIONS.  This
Warrant is exchangeable, upon the surrender hereof by the  Holder
at  the  office or agency of the Company referred to in Paragraph
7(e)  below, for new Warrants of like tenor representing  in  the
aggregate  the right to purchase the number of shares  of  Common
Stock which may be purchased hereunder, each of such new Warrants
to represent the right to purchase such number of shares as shall
be designated by the Holder at the time of such surrender.

      (c) REPLACEMENT OF WARRANT.  Upon receipt of evidence
reasonably  satisfactory  to  the Company  of  the  loss,  theft,
destruction, or mutilation of this Warrant and, in  the  case  of
any  such  loss,  theft,  or destruction,  upon  delivery  of  an
indemnity agreement reasonably satisfactory in form and amount to
the  Company,  or,  in  the  case of any  such  mutilation,  upon
surrender and cancellation of this Warrant, the Company,  at  its
expense, will execute and deliver, in lieu thereof, a new Warrant
of like tenor.

       (d)  CANCELLATION; PAYMENT OF EXPENSES.  Upon the surrender
of  this  Warrant in connection with any transfer,  exchange,  or
replacement  as provided in this Paragraph 7, this Warrant  shall
be  promptly canceled by the Company.  The Company shall pay  all
taxes  (other  than  securities transfer  taxes)  and  all  other
expenses  (other  than legal expenses, if any,  incurred  by  the
Holder or transferees) and charges payable in connection with the
preparation, execution, and delivery of Warrants pursuant to this
Paragraph 7.

       (e)  REGISTER.  The Company shall maintain, at its principal
executive offices (or such other office or agency of the  Company
as it may designate by notice to the Holder), a register for this
Warrant,  in which the Company shall record the name and  address
of the person in whose name this Warrant has been issued, as well
as  the name and address of each transferee and each prior  owner
of this Warrant.

         (f) EXERCISE OR TRANSFER WITHOUT REGISTRATION.  If, at the
time  of  the  surrender of this Warrant in connection  with  any
exercise,  transfer,  or exchange of this Warrant,  this  Warrant
(or,  in  the  case of any exercise, the Warrant Shares  issuable
hereunder), shall not be registered under the 1933 Act and  under
applicable state securities or blue sky laws, the Company

                                   10


<PAGE> 11

may  require, as a condition of allowing such exercise, transfer,
or  exchange, (i) that the Holder or transferee of this  Warrant,
as  the case may be, furnish to the Company a written opinion  of
counsel,  which opinion and counsel are reasonably acceptable  to
the  Company,  to  the  effect that such exercise,  transfer,  or
exchange  may  be made without registration under  said  Act  and
under applicable state securities or blue sky laws, (ii) that the
Holder  or  transferee  execute and deliver  to  the  Company  an
investment letter in form and substance reasonably acceptable  to
the Company, (iii) that the transferee be an "ccredited investor"
as defined in Rule 501(a) promulgated under the 1933 Act and (iv)
that,  upon  such  transfer,  the  transferee  beneficially   own
Registrable  Securities  (as defined in the  Registration  Rights
Agreement) having an aggregate Market Price of at least $500,000;
provided  that no such opinion, letter, status as an  "accredited
investor"  or aggregate Market Price condition shall be  required
in connection with a transfer pursuant to Rule 144 under the 1933
Act.  The first Holder of this Warrant, by taking and holding the
same,  represents  to the Company that such Holder  is  acquiring
this  Warrant  for  investment  and  not  with  a  view  to   the
distribution thereof.

      (g)   RIGHT OF FIRST OFFER.  Subject to  the
terms  and  conditions specified in this Section  7,  the  Holder
hereby  grants to the Company a right of first offer with respect
to  any future sale, transfer or assignment by the Holder of this
Warrant  and the rights granted hereunder, in whole or  in  part.
Each  time  the  Holder proposes to offer this  Warrant  and  the
rights granted hereunder, in whole or in part, for sale, transfer
or assignment (the "Offered Warrant"), the Holder will first make
an  offering of the Offered Warrant to the Company in  accordance
with the following provisions:

     (i)  NOTICE.  The Holder will deliver notice (the "Offer No
tice")  to  the  Company stating (i) its bona fide  intention  to
offer  the  Offered Warrant, and (ii) the price  and  terms  upon
which it proposes to offer the Offered Warrant; and

      (ii)   MECHANICS.  Within ten (10) business days after its
receipt  of the Offer Notice (the "Election Period"), the Company
may  elect  to purchase or obtain, at the price and on the  terms
specified in the Offer Notice, the Offered Warrant.  In the event
that the Company does not elect to purchase or obtain the Offered
Warrant  as  specified in the Offer Notice  within  the  Election
Period,  the  Company may, during the 45 calendar days  following
the  expiration of the Election Period, sell the Offered  Warrant
to  any person or persons at a price not less than that, and upon
terms  no  more  favorable than those,  specified  in  the  Offer
Notice.   If the Holder does not sell the Offered Warrant  within
such  45-calendar  day  period, then the  right  of  first  offer
provided  pursuant to this Paragraph 7(g) will be  deemed  to  be
revived and the Offered Warrant will not be offered unless  again
reoffered to the Company in accordance with this Paragraph 7(g).

     (h)  CERTAIN RIGHT TO PLEDGE.  The provisions
of  Paragraphs 7(a), 7(f) and 7(g) shall not apply  with  respect
to,  and  nothing  herein shall limit or in any way  affect,  the
right  to  pledge  this Warrant in connection with  a  bona  fide
margin account or lending arrangement.


                                    11


<PAGE> 12


          8.        REGISTRATION RIGHTS.

               The initial Holder (and certain assignees thereof)
is entitled to the benefit of such registration rights in respect
of  the  Warrant  Shares as are set forth in  Section  2  of  the
Registration Rights Agreement.

          9.         NOTICES.  All notices, requests,  and  other
communications  required or permitted to be  given  or  delivered
hereunder  to  the  Holder  shall be in  writing,  and  shall  be
personally delivered, or shall be sent by certified or registered
mail or by recognized overnight mail courier, postage prepaid and
addressed, to the Holder at the address shown for the  Holder  on
the  books of the Company, or at such other address as shall have
been  furnished  to the Company by notice from the  Holder.   All
notices, requests, and other communications required or permitted
to  be  given or delivered hereunder to the Company shall  be  in
writing, and shall be personally delivered, or shall be  sent  by
certified  or  registered  mail or by recognized  overnight  mail
courier,  postage  prepaid and addressed, to the  office  of  the
Company  at  11077  N.  Torrey Pines Road, La  Jolla,  California
92037,  Attention:  Chief  Financial Officer  or  at  such  other
address as shall have been furnished to the Holder by notice from
the  Company.   Any such notice, request, or other  communication
may  be sent by facsimile, but shall in such case be subsequently
confirmed  by a writing personally delivered or sent by certified
or  registered  mail or by recognized overnight mail  courier  as
provided  above.  All notices, requests, and other communications
shall  be  deemed to have been given either at the  time  of  the
receipt thereof by the person entitled to receive such notice  at
the  address of such person for purposes of this Paragraph 9, or,
if  mailed  by registered or certified mail or with a  recognized
overnight  mail courier upon deposit with the United States  Post
Office or such overnight mail courier, if postage is prepaid  and
the mailing is properly addressed, as the case may be.

        10. GOVERNING LAW.  THIS WARRANT SHALL BE GOVERNED BY AND
CONSTRUED  AND ENFORCED IN ACCORDANCE WITH THE INTERNAL  LAWS  OF
THE  STATE  OF  CALIFORNIA WITHOUT REGARD  TO  THE  BODY  OF  LAW
CONTROLLING CONFLICTS OF LAW.

       11.  MISCELLANEOUS.

       (a) AMENDMENTS.  This Warrant and any provision hereof may
only be amended by an instrument in writing signed by the Company
and the Holder.

       (b) DESCRIPTIVE HEADINGS.  The descriptive headings of the
several  paragraphs of this Warrant are inserted for purposes  of
reference  only, and shall not affect the meaning or construction
of any of the provisions hereof.

       (c) CASHLESS EXERCISE.  Notwithstanding anything to the
contrary contained in this Warrant, if the resale of the  Warrant
Shares  by  the  Holder  is not then registered  pursuant  to  an
effective registration statement under the 1933 Act, this Warrant
may be exercised


                                   12

<PAGE> 13

by  presentation and surrender of this Warrant to the Company  at
its  principal  executive offices with a written  notice  of  the
Holder's  intention  to effect a cashless exercise,  including  a
calculation of the number of shares of Common Stock to be  issued
upon  such  exercise  in  accordance with  the  terms  hereof  (a
"Cashless  Exercise").  In the event of a Cashless  Exercise,  in
lieu  of  paying  the Exercise Price in cash,  the  Holder  shall
surrender this Warrant for that number of shares of Common  Stock
determined by multiplying the number of Warrant Shares  to  which
it  would  otherwise be entitled by a fraction, the numerator  of
which  shall  be  the difference between the then current  Market
Price per share of the Common Stock and the Exercise Price,   and
the  denominator of which shall be the then current Market  Price
per share of Common Stock.

                     IN  WITNESS WHEREOF, the Company has  caused
this Warrant to be signed by its duly authorized officer.

                                        LIDAK PHARMACEUTICALS

          Dated: _____________                              By:
                                        Name:
                                        Title:







                                    13



<PAGE> 1


                    NOTE PURCHASE AGREEMENT

           THIS NOTE PURCHASE AGREEMENT, dated as of February 26,
1997 (this "AGREEMENT"), by and between LIDAK PHARMACEUTICALS,  a
California  corporation, with headquarters located  at  11077  N.
Torrey  Pines  Road, La Jolla, California 92037 (the  "Company"),
and   RGC   International  Investors,  LDC,  a   Cayman   Islands
corporation (the "Buyer").

                      W I T N E S S E T H:

           WHEREAS,  the Company and the Buyer are executing  and
delivering  this  Agreement in reliance upon the  exemption  from
securities  registration afforded by Rule 506 under Regulation  D
("REGULATION  D") as promulgated by the United States  Securities
and  Exchange Commission (the "SEC") under the Securities Act  of
1933, as amended (the "1933 Act"); and

          WHEREAS, the Buyer wishes to purchase from the Company,
upon the terms and subject to the conditions of this Agreement, a
convertible  promissory  note  in the  principal  amount  of  six
million  dollars ($6,000,000.00) in the form attached  hereto  as
Annex  I  (the  "Note"),  which will be  convertible  into  units
consisting  of shares of the Company's Class A Common  Stock,  no
par  value  (the  "Common  Stock"), and  warrants,  in  the  form
attached hereto as Annex II (the "Warrants"), to purchase  shares
of  Common Stock upon the terms and subject to the conditions  of
the Note;

          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 parties hereto agree as follows:

          1.        AGREEMENT TO PURCHASE; PURCHASE PRICE.

                The  Buyer  hereby  agrees to purchase  from  the
Company  on the Closing Date (as defined in Section 6 below)  the
Note  for the purchase price set forth on the signature  page  of
this  Agreement (the "Purchase Price").  The Purchase Price shall
be payable in United States Dollars in accordance with Section  6
below.   The Note shall be delivered by the Company to the  Buyer
and  the Purchase Price shall be paid by the Buyer to the Company
at the Closing (as defined in Section 6 below).

          2.        BUYER REPRESENTATIONS, WARRANTIES, ETC.

                 The  Buyer  represents  and  warrants  to,   and
covenants and agrees with, the Company as follows:

         a. PURCHASE FOR INVESTMENT.  The Buyer is purchasing the
Note,  the Warrants and the shares of Common Stock issuable  upon
conversion  of the Note, as payment of interest on the  Note  and
upon  exercise  of the Warrants (collectively, the "Shares"  and,
together  with  the Note and the Warrants, the "Securities")  for
its own account for investment only and not with a present





<PAGE> 2

view  towards  the  public sale or distribution  thereof,  except
pursuant to sales registered under the 1933 Act;

          b.  ACCREDITED INVESTOR.  The Buyer is an "accredited
investor"  as  that term is defined in Rule 501  of  the  General
Rules  and  Regulations  under the 1933 Act  by  reason  of  Rule
501(a)(3);

         c. REOFFERS AND RESALES.  All subsequent offers and sales
of  any of the Securities by the Buyer shall be made pursuant  to
registration of such Securities under the 1933 Act or pursuant to
an exemption from such registration;

         d. COMPANY RELIANCE.  The Buyer understands that the Note
is  being  offered and sold, and the Shares and the Warrants  are
being offered, to it in reliance on specific exemptions from  the
registration  requirements of United  States  federal  and  state
securities  laws and that the Company is relying upon  the  truth
and   accuracy   of,  and  the  Buyer's  compliance   with,   the
representations,  warranties,  agreements,  acknowledgments   and
understandings  of  the  Buyer  set  forth  herein  in  order  to
determine the availability of such exemptions and the eligibility
of the Buyer to acquire the Securities;

         e. INFORMATION PROVIDED.  The Buyer and its advisors, if
any,  have been furnished with all material information  relating
to  the  business, finances and operations of the  Company  which
have been requested by the Buyer; the Buyer and its advisors,  if
any,  have been afforded the opportunity to ask questions of  the
Company regarding such information and have received complete and
satisfactory answers to any such inquiries.  Without limiting the
generality of the foregoing, the Buyer has had the opportunity to
obtain  and  to review the following filings by the Company  with
the SEC (collectively the "SEC Documents"):  (1) Annual Report on
Form  10-K  for the fiscal year ended September 30,  1996  ("1996
Form  10-K"), (2) Quarterly Report on Form 10-Q for  the  quarter
ended December 31, 1996, (3) Form 8-K filed January 15, 1997, (4)
Form 8-K filed February 11, 1997 and (5) Proxy Statement for  its
annual meeting to be held March 15, 1997.  The Buyer acknowledges
the  risk factors contained in the 1996 Form 10-K and understands
that  its investment in the Securities involves a high degree  of
risk.  The due diligence investigation conducted by the Buyer  or
its representatives shall not modify, amend or affect the Buyer's
right  to  rely  on the Company's representations and  warranties
contained in Section 3 below;

        f.   ABSENCE OF APPROVALS.  The Buyer understands that no
United States federal or state agency or any other government  or
governmental  agency has passed on or made any recommendation  or
endorsement of the Securities;

       g.  NOTE PURCHASE AGREEMENT.  This Agreement has been duly
and  validly authorized, executed and delivered on behalf of  the
Buyer  and  is  a  valid  and  binding  agreement  of  the  Buyer
enforceable  in  accordance  with  its  terms;  subject   as   to
enforceability to general principles of equity and to bankruptcy,
insolvency,  moratorium  and  other similar  laws  affecting  the
enforcement of creditors' rights generally.



                                   2

<PAGE> 3

          h.    NO VIOLATION.  The execution and delivery of this
Agreement by the Buyer and the consummation by the Buyer  of  the
purchase  of the Note and the other transactions contemplated  by
this  Agreement do not and will not conflict with or result in  a
breach  by  the  Buyer of any of the terms or provisions  of,  or
constitute   a   default   under,  the   Restated   Articles   of
Incorporation  or  By-laws of the Buyer, the investment  policies
and  investment restrictions of the Buyer, or any other  material
agreement or instrument to which the Buyer is a party or by which
it or any of its properties or assets are bound;

        i.  INVESTMENT TRANSACTIONS.  The Buyer is not purchasing
the  Note  for  the purpose of covering any short  sales  of  the
Common Stock made by the Buyer with the Shares on or prior to the
date  hereof.   The  Buyer will not engage  in  any  transactions
directly  or indirectly related to the Common Stock in  violation
of  applicable  securities laws, rules and  regulations  or  NASD
regulations; and

         j.     ORGANIZATION AND AUTHORITY. The Buyer is validly
existing  and  in  good standing under the  laws  of  the  Cayman
Islands,  and has all requisite power and authority  to  execute,
deliver  and  perform its obligations under this  Agreement,  the
Registration  Rights  Agreement and the other  agreements  to  be
executed  and delivered by the Buyer in connection herewith,  and
to consummate the transactions contemplated hereby.

          3.        COMPANY REPRESENTATIONS, WARRANTIES, ETC.

                The  Company represents and warrants to the Buyer
that:

          a. ORGANIZATION AND AUTHORITY.  Each of the Company and
its  subsidiaries, if any, is a corporation validly existing  and
in  good standing under the laws of the jurisdiction in which  it
is  incorporated,  and  has  all requisite  corporate  power  and
authority  to  (i) own, lease and operate its properties  and  to
carry  on  its  business  as now being  conducted,  and  (ii)  to
execute,   deliver  and  perform  its  obligations   under   this
Agreement,  the  Registration Rights  Agreement,  the  Note,  the
Warrants and the other agreements to be executed and delivered by
the  Company  in  connection  herewith,  and  to  consummate  the
transactions contemplated hereby and the issuance of the Note and
the Warrants and the issuance and reservation for issuance of the
Conversion Shares and Warrant Shares issuable upon conversion  or
exercise thereof have been duly authorized by the Company's Board
of  Directors  and  no  further consent or authorization  of  the
Company, its Board of Directors, or its shareholders is required.
The  Company  and  each  of its subsidiaries,  if  any,  is  duly
qualified to do business as a foreign corporation and is in  good
standing  in  all  jurisdictions wherein  such  qualification  is
necessary  and where failure so to qualify would have a  material
adverse effect on the business, properties, operations, condition
(financial or other), results of operations or prospects  of  the
Company  and  its  subsidiaries taken as  a  whole  (a  "Material
Adverse Effect").

          b.  CAPITALIZATION.  The authorized capital stock of the
Company  currently consists of (a) 99,490,000  shares  of  Common
Stock,  no  par  value,  of  which  (i)  36,469,676  shares   are
outstanding  as of February 17, 1997, (ii) 6,224,451  shares  are
reserved  for  issuance  upon  the exercise  of  options  granted
pursuant  to  certain  option plans  and  option  grants  of  the
Company, of


                                   3

<PAGE> 4


which  options exercisable into 5,407,161 shares are  issued  and
outstanding,  (iii)  1,498,352 shares are reserved  for  issuance
pursuant  to  securities (other than the Note and  the  Warrants)
exercisable  for,  or  convertible  into,  exchangeable  for,  or
otherwise  entitling  any  person to acquire,  shares  of  Common
Stock,  (iv)  7,257,465  shares are reserved  for  issuance  upon
conversion of the Note and (v) 3,628,733 shares are reserved  for
issuance  upon  exercise of the Warrants (subject  to  adjustment
pursuant  to  the  Note); (b) 510,000 shares of  Class  B  Common
Stock, no par value, of which 283,000 shares are outstanding  and
with  respect  to  which 227,000 shares have  been  reserved  for
issuance  upon the exercise of option plans and option grants  of
the Company; and (c) 10,000,000 shares of Preferred Stock, no par
value,  of  which no shares were outstanding as of  February  17,
1997;  and on the Closing Date (as defined herein) there will  be
no  material  increase from February 17, 1997 in  the  number  of
shares  of Common Stock or Preferred Stock outstanding.   All  of
such  outstanding shares of capital stock are, or  upon  issuance
will be, validly issued, fully paid and nonassessable.  No shares
of  capital stock of the Company are subject to preemptive rights
or any other similar rights of the stockholders of the Company or
any  liens or encumbrances imposed through the actions or failure
to act of the Company.  Except as disclosed in the SEC Documents,
as  of  the  effective date of this Agreement, (i) there  are  no
outstanding  options, warrants, scrip, rights to  subscribe  for,
calls,  rights  of first refusal or commitments of any  character
whatsoever relating to, or securities or rights convertible  into
or exchangeable for any shares of capital stock of the Company or
any of its subsidiaries, or arrangements by which the Company  or
any  of  its  subsidiaries  is  or  may  become  bound  to  issue
additional shares of capital stock of the Company or any  of  its
subsidiaries,  and (ii) there are no agreements  or  arrangements
under  which the Company or any of its subsidiaries is  obligated
to  register the sale of any of its or their securities under the
1933 Act (except the Registration Rights Agreement).  The Company
has  furnished  to  the  Buyer true and  correct  copies  of  the
Company's Restated Articles of Incorporation as in effect on  the
date  hereof  (the  "Articles of Incorporation"),  the  Company's
By-laws as in effect on the date hereof (the "By-laws").   Except
as  set  forth  on Schedule 3(b), (i) no holder  of  any  of  the
Company's  securities has any rights, "demand,"  "piggy-back"  or
otherwise,  to have such securities registered by reason  of  the
intention  to  file, filing or effectiveness of the  Registration
Statement  (as defined in the Registration Rights Agreement)  and
(ii)  except  for the Company's Class D Warrants, no  outstanding
securities  of  the  Company  have any  anti-dilution  protection
rights that would or might be triggered by the issuance of any of
the  Securities.  The offers and sales of the outstanding  shares
of Common Stock and options, warrants and other rights to acquire
Common  Stock were at all relevant times either registered  under
the  1933 Act and applicable state securities laws or exempt from
such requirements.

       c.  CONCERNING  THE  SHARES.  The Shares  have  been  duly
authorized  and,  when  issued upon conversion  of  the  Note  or
exercise  of the Warrants, as the case may be, will be  duly  and
validly  issued,  fully  paid  and non-assessable  and  will  not
subject  the  holder thereof to personal liability by  reason  of
being  such  holder.   There  are no  preemptive  rights  of  any
stockholder  of  the  Company, as such, to  acquire  any  of  the
Securities.  The Common Stock is listed for trading on the Nasdaq
National Market ("Nasdaq"), and the Company and the Common  Stock
meet  the  criteria  for continued listing  and  trading  on  the
Nasdaq.   The  Company has not been notified since September  30,
1996  by  the Nasdaq of any failure or potential failure to  meet
the criteria for continued listing and trading on the Nasdaq, and
no suspension of trading in the Common Stock is in effect.  The



                                            4

<PAGE> 5

Company  understands  and acknowledges the  potentially  dilutive
effect to the Common Stock of the issuance of the Shares.

          d.         NOTE PURCHASE AGREEMENT, NOTE, WARRANTS, AND
REGISTRATION  RIGHTS AGREEMENT.  This Agreement,  the  Note,  the
Warrants and the Registration Rights Agreement have been duly and
validly  authorized by the Company, this Agreement has been  duly
executed and delivered by the Company and this Agreement is,  and
the  Note,  the  Warrants and the Registration Rights  Agreement,
when  executed and delivered by the Company, will be,  valid  and
binding agreements of the Company enforceable in accordance  with
their  respective terms, subject as to enforceability to  general
principles  of  equity and to bankruptcy, insolvency,  moratorium
and  other  similar laws affecting the enforcement of  creditors'
rights generally.

        e. NON-CONTRAVENTION.  The execution and delivery of this
Agreement,  the  Note, the Warrants and the  Registration  Rights
Agreement  by the Company and the consummation by the Company  of
the  issuance  of  the  Securities  and  the  other  transactions
contemplated  by this Agreement, the Note, the Warrants  and  the
Registration  Rights Agreement do not and will not conflict  with
or  result  in  a breach by the Company of any of  the  terms  or
provisions  of,  or constitute a default under, the  Articles  of
Incorporation  or  By-laws  of the  Company,  or  any  indenture,
mortgage, deed of trust or other material agreement or instrument
to  which  the Company is a party or by which it or  any  of  its
properties  or assets are bound, or any existing applicable  law,
rule or regulation or any applicable decree, judgment or order of
any  court,  United  States  federal or  state  regulatory  body,
administrative   agency   or   other   governmental    body    or
self-regulatory body having jurisdiction over the Company or  any
of  its properties or assets.  Neither the Company nor any of its
subsidiaries  is  in violation of its Articles of  Incorporation,
by-laws or other organizational documents and neither the Company
nor  any  of  its subsidiaries is in default (and  no  event  has
occurred which with notice or lapse of time or both could put the
Company or any of its subsidiaries in default) under, and neither
the  Company nor any of its subsidiaries has taken any action  or
failed to take any action that would give to others any rights of
termination,  amendment,  acceleration or  cancellation  of,  any
agreement, indenture or instrument to which the Company or any of
its subsidiaries is a party or by which any property or assets of
the  Company  or  any of its subsidiaries is bound  or  affected,
except for possible defaults as would not, individually or in the
aggregate, have a Material Adverse Effect.  The businesses of the
Company  and  its subsidiaries, if any, are not being  conducted,
and  shall not be conducted so long as the Buyer owns any of  the
Securities,  in violation of any law, ordinance or regulation  of
any  governmental entity, except for involuntary violations which
either  singly or in the aggregate do not have a Material Adverse
Effect.   Except  as specifically contemplated by this  Agreement
and  as  required  under the 1933 Act and  any  applicable  state
securities  laws,  the  Company is not  required  to  obtain  any
consent,  authorization  or  order of,  or  make  any  filing  or
registration  with,  any  court or  governmental  agency  or  any
regulatory or self-regulatory agency in order for it to  execute,
deliver  or  perform any of its obligations under this Agreement,
the  Registration Rights Agreement, the Note or the  Warrants  in
accordance with the terms hereof or thereof.  Except as set forth
on  Schedule 3(e), all consents, authorizations, orders,  filings
and  registrations  which  the  Company  is  required  to  obtain
pursuant to the preceding sentence have been obtained or effected
on or prior to the date hereof.


                                   5

<PAGE> 6

       f.  APPROVALS.  No authorization, approval or consent of,
or  filing with, any court, governmental body, regulatory agency,
self-regulatory organization, or stock exchange or market or  the
stockholders of the Company is required to be obtained or made by
the  Company  for  the  issuance and sale of  the  Securities  as
contemplated by this Agreement, the Note and the Warrants,  other
than (1) listing of the Shares on Nasdaq and (2) the requirements
of any applicable blue sky laws.

       g.  INFORMATION PROVIDED.  The information provided by the
Company  to  the  Buyer, including, without limitation,  the  SEC
Documents,  does not contain any untrue statement of  a  material
fact  or  omit to state any material fact necessary in  order  to
make  the  statements therein, in the light of the  circumstances
under which they are made, not misleading.

      h.   ABSENCE OF CERTAIN CHANGES.  Since September 30, 1996,
there has been no material adverse change and no material adverse
development  in  the business, properties, operations,  condition
(financial  or otherwise), results of operations or prospects  of
the  Company  or any of its subsidiaries, except as disclosed  in
the  SEC Documents filed subsequent thereto and prior to the date
hereof.

       i.    ABSENCE OF LITIGATION.  There is no action, suit,
proceeding,  inquiry or investigation before  or  by  any  court,
public  board or body pending or, to the knowledge of the Company
or  any of its subsidiaries, threatened against or affecting  the
Company  or  any  of  its  subsidiaries, wherein  an  unfavorable
decision, ruling or finding would have a material adverse  effect
on  the properties, business, condition (financial or otherwise),
results  of  operations  or prospects  of  the  Company  and  its
subsidiaries taken as a whole or the transactions contemplated by
this  Agreement  or any of the documents contemplated  hereby  or
which  would adversely affect the validity or enforceability  of,
or  the  authority  or  ability of the  Company  to  perform  its
obligations under, this Agreement or any of such other documents;
and  the Company has not been notified of any pending SEC or  any
self-regulatory   organization  suit,  proceeding,   inquiry   or
investigation.

     j.      SEC DOCUMENTS, FINANCIAL STATEMENT.  Since September
30,  1996,  the Company has filed all reports, schedules,  forms,
statements  and other documents required to be filed by  it  with
the  SEC pursuant to the reporting requirements of the Securities
Exchange  Act of 1934, as amended (the "1934 Act").  The  Company
has  delivered to the Buyer true and complete copies of  the  SEC
Documents,  except  for  such  exhibits  thereto  and   documents
incorporated  therein.   As of their respective  dates,  the  SEC
Documents complied in all material respects with the requirements
of  the  1934  Act  and  the rules and  regulations  of  the  SEC
promulgated thereunder applicable to the SEC Documents, and  none
of  the SEC Documents, at the time that they were filed with  the
SEC, contained any untrue statement of a material fact or omitted
to  state  a  material  fact required to  be  stated  therein  or
necessary  in order to make the statements therein, in  light  of
the circumstances under which they were made, not misleading.  As
of  their  respective  dates,  the financial  statements  of  the
Company included in the SEC Documents complied as to form in  all
material respects with applicable accounting requirements and the
published rules and regulations of the SEC with respect  thereto.
Such  financial statements have been prepared in accordance  with
generally  accepted accounting principles, consistently  applied,
during the periods involved (except (i) as may be

                                   6

<PAGE> 7

otherwise indicated in such financial statements or  the  notes
thereto, or (ii) in the case of unaudited interim statements,  to
the extent they may not include footnotes or may be condensed  or
summary  statements) and present fairly in all material  respects
the  consolidated  financial position  of  the  Company  and  its
consolidated  subsidiaries  as  of  the  dates  thereof  and  the
consolidated results of their operations and cash flows  for  the
periods then ended (subject, in the case of unaudited statements,
to  normal year-end audit adjustments).  Except as set  forth  in
the  financial  statements of the Company  included  in  the  SEC
Documents,   the  Company  has  no  liabilities,  contingent   or
otherwise,  other than (i) liabilities incurred in  the  ordinary
course  of  business subsequent to September 30,  1996  and  (ii)
obligations  under  contracts  and commitments  incurred  in  the
ordinary  course  of  business and not required  under  generally
accepted  accounting principles to be reflected in such financial
statements,  which,  individually or in the  aggregate,  are  not
material to the financial condition or operating results  of  the
Company and its subsidiaries.  As of the date hereof, there is no
information  that  is  required to be disclosed  by  the  Company
pursuant  to the requirements of the 1934 Act or the requirements
of  the 1933 Act (assuming for this purpose that the Company  has
an effective Registration Statement under the 1933 Act into which
all  of its 1934 Act reports are incorporated) that has not  been
properly disclosed in the SEC Documents.

     k.     PATENTS, COPYRIGHTS, ETC.  Except as would not have a
Material  Adverse  Effect:   (i) to the  best  of  the  Company's
knowledge, it owns or possess the requisite licenses or rights to
use  all  patents,  patent  rights, inventions,  know-how,  trade
secrets,  trademarks, service marks, service names,  trade  names
and copyrights necessary to enable it to conduct its business  as
now  operated; (ii) to the best of the Company's knowledge, there
is  no claim or action by any person pertaining to, or proceeding
pending  or threatened which challenges the right of the  Company
or  any  subsidiary of the Company with respect to  any  patents,
patent   rights,  licenses,  inventions,  know-how,   trademarks,
service   marks,  service  names,  trade  names  and   copyrights
necessary  to  enable it conduct its business  as  now  operated;
(iii)  to  the best of the Company's knowledge, the Company's  or
its  subsidiaries'  current and intended products,  services  and
processes  do  not  infringe  on  any  patents,  patent   rights,
licenses,   inventions,  know-how,  trademarks,  service   marks,
service names, tradenames, copyrights or other rights held by any
person;  and  (iv)  the  Company  is  unaware  of  any  facts  or
circumstances which might give rise to any of the foregoing.

       l. FDA MATTERS.  [RESERVED]

       m. TAX STATUS.  Except as set forth on Schedule 3(m), each
of  the  Company and its subsidiaries, if any, has made or  filed
all  federal and state income and all other tax returns,  reports
and  declarations required by any jurisdiction  to  which  it  is
subject (unless and only to the extent that the Company and  each
of  its  subsidiaries  has  set aside  on  its  books  provisions
reasonably  adequate for the payment of all unpaid and unreported
taxes)  and has paid all taxes and other governmental assessments
and  charges that are material in amount, shown or determined  to
be  due  on such returns, reports and declarations, except  those
being  contested in good faith, and has set aside  on  its  books
provisions reasonably adequate for the payment of all  taxes  for
periods  subsequent to the periods to which such returns, reports
or  declarations apply.  There are no unpaid taxes of the Company
or  any of its subsidiaries in any material amount claimed to  be
due by the taxing authority of any jurisdiction, and the officers
of the Company know of no basis for any such claim.



                                     7




<PAGE> 8

     n.      CERTAIN TRANSACTIONS.  Except (1) as set forth on
Schedule  3(n)  or  in the SEC Documents, (2)  for  arm's  length
transactions pursuant to which the Company makes payments in  the
ordinary course of business upon terms no less favorable than the
Company could obtain from third parties and (3) for the grant  of
stock options pursuant to the Company's stock option plans,  none
of  the  officers,  directors, or employees  of  the  Company  is
presently a party to any transaction with the Company or  any  of
its  subsidiaries (other than for services as employees, officers
and  directors),  including  any  contract,  agreement  or  other
arrangement providing for the furnishing of services  to  or  by,
the leasing of property or the licensing of rights to or from  or
otherwise requiring payments to or from any officer, director  or
such employee or, to the Company's knowledge, any entity in which
such   person   has  a  substantial  interest  or   position   of
responsibility.

      o.  ACKNOWLEDGMENT REGARDING BUYER'S PURCHASE OF NOTE.  The
Company  acknowledges and agrees that the Buyer is acting  solely
in the capacity of an arm's length purchaser with respect to this
Agreement and the transactions contemplated hereby.  The  Company
further  acknowledges that the Buyer is not acting as a financial
advisor  or fiduciary of the Company (or in any similar capacity)
with  respect to this Agreement and the transactions contemplated
hereby  and  any  advice  given  by  the  Buyer  or  any  of  its
representatives or agents in connection with this  Agreement  and
the  transactions contemplated hereby is merely incidental to the
Buyer's purchase of the Note.  The Company further represents  to
the  Buyer  that  the  Company's  decision  to  enter  into  this
Agreement has been based solely on the independent evaluation  of
the Company by its representatives.

     p.     NO INTEGRATED OFFERING.  Neither the Company, nor any
of  its affiliates, nor any person acting on its or their behalf,
has  directly  or  indirectly made any offers  or  sales  of  any
security  or  solicited  any offers to  buy  any  security  under
circumstances that would require registration under the 1933  Act
of the issuance of the Securities to the Buyer.

     q.    NO BROKERS.  The Company has taken no action which
would  give  rise  to  any  claim by  any  person  for  brokerage
commissions, finder's fees or similar payments relating  to  this
Agreement  or  the transactions contemplated hereby,  except  for
dealings with Michael Arnouse, whose commissions and fees will be
paid by the Company.

     4.    CERTAIN COVENANTS AND ACKNOWLEDGMENTS.

      a.   TRANSFER RESTRICTIONS.  The Buyer acknowledges that (1)
the  Note  and  the  Warrants have not been  and  are  not  being
registered  under the provisions of the 1933 Act and,  except  as
provided  in  the Registration Rights Agreement, the Shares  have
not been and are not being registered under the 1933 Act, and the
Shares  may not be transferred unless (A) subsequently registered
thereunder  for resale or (B) the Buyer shall have  delivered  to
the  Company  an  opinion of counsel, reasonably satisfactory  in
form, scope and substance to the Company, to the effect that  the
Securities  to be sold or transferred may be sold or  transferred
without  such  registration; (2) any sale of the Shares  made  in
reliance on Rule 144 promulgated under the 1933 Act may  be  made
only  in  accordance with the terms of said Rule and further,  if
said Rule is not applicable, any resale of such



                                   8


<PAGE> 9

Shares  under  circumstances in which the seller, or  the  person
through  whom  the  sale  is  made,  may  be  deemed  to  be   an
underwriter,  as that term is used in the 1933 Act,  may  require
compliance  with some other exemption under the 1933 Act  or  the
rules and regulations of the SEC thereunder; and (3) neither  the
Company  nor any other person is under any obligation to register
the  Shares  (other  than  pursuant to  the  Registration  Rights
Agreement)  under the 1933 Act or to comply with  the  terms  and
conditions  of any exemption thereunder (other than  pursuant  to
Section  4(d)  hereof  and  pursuant to the  Registration  Rights
Agreement).

       b. RESTRICTIVE LEGEND.  The Buyer acknowledges and agrees
that  the  Note  and the Warrants, and, until such  time  as  the
Shares have been registered under the 1933 Act as contemplated by
the  Registration  Rights  Agreement, the  certificates  for  the
Shares,  shall  bear  a restrictive legend in  substantially  the
following  form (and a stop-transfer order may be placed  against
transfer of the certificates for the Shares):

                       The   securities   represented   by   this
certificate have not been registered under the Securities Act  of
1933,  as  amended.   The  securities  have  been  acquired   for
investment  and may not be sold, transferred or assigned  in  the
absence of an effective registration statement for the securities
under  the  Securities Act of 1933, as amended, or an opinion  of
counsel  that  registration is not required  under  said  Act  or
unless sold pursuant to Rule 144.

                The  legend set forth above shall be removed  and
the  Company shall issue a certificate without such legend to the
holder  of  the Securities upon which it is stamped,  if,  unless
otherwise required by applicable state securities laws,  (a)  the
Securities  are  included in an effective registration  statement
under  the  1933  Act covering the resale thereof,  or  (b)  such
holder provides the Company with an opinion of counsel, in  form,
substance and scope reasonably acceptable to the Company, to  the
effect  that a public sale or transfer of such Securities may  be
made  without registration under the 1933 Act and such Securities
are  being  sold  or transferred in accordance  with  the  method
described  therein, or (c) such holder provides the Company  with
reasonable assurances that the Securities can be sold pursuant to
Rule 144 under the 1933 Act (or a successor rule thereto) without
any  restriction as to the number of Securities acquired as of  a
particular  date  that can then be immediately sold.   The  Buyer
agrees to sell all of the Securities, including those represented
by  a  certificate(s) from which the legend has been removed,  in
compliance  with  the prospectus delivery requirements,  if  any,
under applicable securities laws.

                The  Note  shall also contain a legend reflecting
its  non-assignability  other  than  to  the  Buyer's  affiliates
(including  the limited partners and shareholders thereof  solely
in the case of liquidation of the Buyer).  The Warrant shall also
contain   a  legend  setting  forth  the  restrictions   on   its
assignability.   Notwithstanding the  foregoing,  nothing  herein
shall  affect  or  limit  the  Buyer's  ability  to  pledge   the
Securities  in  connection with a bona  fide  margin  account  or
lending arrangement.


                                     9


<PAGE> 10

     c.       REGISTRATION RIGHTS AGREEMENT.  The parties hereto
agree  to  enter  into the Registration Rights  Agreement  on  or
before the Closing Date.

     d.       FORM D; BLUE SKY LAWS.  The Company agrees to file a
Form   D  with  respect  to  the  Securities  as  required  under
Regulation D and to provide a copy thereof to the Buyer  promptly
after  such  filing.  On or before the Closing Date, the  Company
shall  take such action as shall be necessary to qualify,  or  to
obtain  an  exemption for, the Securities for sale to  the  Buyer
pursuant  to this Agreement and on conversion of the  Note  under
such of the securities or "blue sky" laws of jurisdictions in the
United  States  as  shall  be  applicable  to  the  sale  of  the
Securities  to  the  Buyer  pursuant to  this  Agreement  and  on
conversion of the Note.  The Company shall furnish copies of  all
filings,  applications,  orders and grants  or  confirmations  of
exemptions relating to such securities or "blue sky" laws  on  or
before the Closing Date.

     e.    NASDAQ NOTIFICATION; REPORTING STATUS.  On or before
the  Closing  Date,  the Company shall file  a  "NASDAQ  National
Market  Notification Form for Listing of Shares and  Notification
Pursuant to SEC Rule 10b-17" with respect to the Shares with  the
National  Association  of  Securities  Dealers,  Inc.  and  shall
provide  evidence of such filing to the Buyer.  So  long  as  the
Buyer  beneficially owns any of the Securities, the Company shall
file  all  reports required to be filed with the SEC pursuant  to
Section  13 or 15(d) of the 1934 Act, and the Company  shall  not
terminate its status as an issuer required to file reports  under
the  1934  Act, even if the 1934 Act or the rules and regulations
thereunder would permit such termination, for a period  of  three
years after the Closing Date.

       f.     USE OF PROCEEDS.  The Company will use the proceeds
from  the  sale  of  the Note for the Company's internal  working
capital purposes and shall not, directly or indirectly, use  such
proceeds  for any loan to or investment in any other corporation,
partnership enterprise or other person.

        g.  CERTAIN EXPENSES.  Whether or not the Closing occurs,
the  Company  shall  pay  or reimburse the  reasonable  fees  and
out-of-pocket expenses of the Buyer for travel, legal  fees,  due
diligence and other costs, up to $20,000.  The obligations of the
Company  under the provisions of this Section 4(g)  shall  be  in
addition to the obligation of the Company for expenses under  the
Registration Rights Agreement referred to in Section 4(c) of this
Agreement.

         h. RESERVATION OF SHARES.  The Company shall at all times
have  authorized,  and reserved for the purpose  of  issuance,  a
sufficient  number of shares of Common Stock to provide  for  the
full  conversion  of  the  outstanding amount  of  the  Note  and
issuance of the Conversion Shares in connection therewith and the
full  exercise  of the Warrants and the issuance of  the  Warrant
Shares in connection therewith (based on the conversion price  of
the  Note  and the exercise price of the Warrants in effect  from
time to time and subject to the limitations on total shares to be
issued  as set forth in Section 2.6 of the Note).  Prior  to  the
complete  conversion  of the Note and the full  exercise  of  the
Warrants  (within the above-mentioned limitations),  the  Company
shall  not  reduce the number of shares of Common Stock  reserved
for  issuance  upon conversion of the Note and  exercise  of  the
Warrants without the consent of the Buyer.


                                    10


<PAGE> 11

       i.  FINANCIAL INFORMATION.  The Company agrees to send the
following  reports  to  the  Buyer  until  the  Buyer  transfers,
assigns,  or  sells all of the Securities:  (i) within  ten  (10)
days  after the filing with the SEC, a copy of its Annual  Report
on  Form 10-K, its Quarterly Reports on Form 10-Q and any Current
Reports  on  Form  8-K;  and (ii) within  three  (3)  days  after
release,  copies of all press releases issued by the  Company  or
any of its subsidiaries.

       j.   CORPORATE EXISTENCE.  So long as a Buyer beneficially
owns  any  Note  or  Warrants,  the Company  shall  maintain  its
corporate   existence,  except  in  the  event   of   a   merger,
consolidation  or  sale  of  all  or  substantially  all  of  the
Company's assets, as long as the surviving or successor entity in
such  transaction (i) assumes the Company's obligations hereunder
and  under  the  agreements  and  instruments  entered  into   in
connection  herewith  and (ii) is a publicly  traded  corporation
whose  Common  Stock  is listed for trading on  the  Nasdaq,  the
Nasdaq  SmallCap  Market,  the New York  Stock  Exchange  or  the
American Stock Exchange.

        K.  CERTAIN ISSUANCES OF SECURITIES.

 (1) Unless the Company obtains Stockholder Approval (as defined in
the  Note)  or a waiver thereof from Nasdaq, the Company will  not
issue  any  shares  of  Common  Stock  or  shares  of  any  other
promissory   notes   or   other  securities   convertible   into,
exchangeable for, or otherwise entitling the holder  to  acquire,
shares of Common Stock which would be subject to Rule 4460(i)  of
Nasdaq  (or  any successor or replacement provision thereof)  and
which  would  be  integrated with the sale of the  Note  and  the
Warrants  to the Buyer or the issuance of Shares upon  conversion
of  the  Note  or exercise of the Warrants for purposes  of  Rule
4460(i)  of  Nasdaq  (or  any successor or replacement  provision
thereof).

(2)The Company shall not offer, sell, contract to sell or issue (or
engage  any  person  to assist the Company  in  taking  any  such
action)  any  equity securities or securities  convertible  into,
exchangeable for, or otherwise entitling the holder  to  acquire,
any  Common  Stock  during  the period  from  the  date  of  this
Agreement  to the later of (x) the date which is 180  days  after
the  Closing  Date  and  (y) the date on which  the  Registration
Statement shall have been effective and available for use by  the
Buyer for 90 consecutive days; PROVIDED, HOWEVER, that nothing in
this  Section  4(i)(2)  shall prohibit the Company  from  issuing
securities  (i)  pursuant to compensation  plans  for  employees,
directors,  officers, advisers or consultants of the Company  and
in accordance with the terms of such plans as in effect as of the
date  of  this  Agreement,  (ii)  upon  exercise  of  conversion,
exchange, purchase or similar rights issued, granted or given  by
the  Company  and  outstanding as of the date of this  Agreement,
(iii)  as  part of a transaction involving a strategic  alliance,
collaboration,  joint  venture,  partnership  or  other   similar
arrangement  of  the  Company or (iv) in an  underwritten  public
offering registered under the 1933 Act.

    l.     BEST EFFORTS.  The parties hereto shall use their best
efforts  to  timely  satisfy each of the  conditions  to  closing
described in Sections 7 and 8 of this Agreement.


                                    11


<PAGE> 12


          5.        TRANSFER AGENT INSTRUCTIONS.

                The  Company  will instruct,  and  use  its  best
efforts to put into effect and maintain an arrangement with,  its
transfer  agent consistent with applicable law in  order  to  (i)
issue certificates promptly for the Shares from time to time upon
conversion  of  the  Note and exercise of the  Warrants  in  such
amounts  as  are  issuable in accordance with the terms  thereof,
registered in the name of the Buyer or its permitted nominee  and
in  such denominations to be specified by the Buyer in connection
with each conversion of the Note or exercise of the Warrants  and
(ii) enable the resale of such Shares to the public.  The Company
warrants  that  no  instruction or  arrangement  other  than  the
arrangement  referred  to in this Section  5  and  stop  transfer
instructions  to  give  effect to Section 4(a)  hereof  prior  to
registration of the Shares under the 1933 Act will  be  given  by
the  Company  to  the transfer agent and that  the  Shares  shall
otherwise be freely transferable on the books and records of  the
Company  to  the  extent  provided  in  this  Agreement  and  the
Registration  Rights Agreement.  Nothing in  this  Section  shall
affect in any way the Buyer's obligations and agreement to comply
with  the prospectus delivery requirements, if any, of applicable
securities  laws  upon resale of the Securities.   If  the  Buyer
provides the Company with an opinion of counsel that registration
of  a  resale by the Buyer of any of the Securities in accordance
with  clause  (1)(B)  of Section 4(a) of this  Agreement  is  not
required  under  the  1933  Act, the  Company  shall  permit  the
transfer  of  the  Securities and, in the  case  of  the  Shares,
promptly  instruct the Company's transfer agent to issue  one  or
more share certificates in such name and in such denominations as
specified by the Buyer.  The Company acknowledges that  a  breach
by it of its obligations hereunder will cause irreparable harm to
the Buyer, by thwarting the intent and purpose of the transaction
contemplated hereby.  Accordingly, the Company acknowledges  that
the  remedy  at  law for a breach of its obligations  under  this
Section 5 will be inadequate and agrees, in the event of a breach
or  threatened  breach by the Company of the provisions  of  this
Section,  that  the Buyer shall be entitled, in addition  to  all
other available remedies, to an injunction restraining any breach
and  requiring  immediate  issuance  and  transfer,  without  the
necessity of showing economic loss and without any bond or  other
security being required.

          6.        CLOSING DATE.

   a.      CLOSING DATE.  Subject to satisfaction (or waiver) of
the  conditions to closing set forth in Sections 7 and  8  below,
the  date  and  time of the issuance and sale of  the  Note  (the
"Closing") shall be 12:00 noon Eastern Standard Time on  February
26,  1997, or such other date and time as mutually agreed by  the
parties hereto (the "Closing Date").  The Closing shall occur  on
the  Closing  Date at the offices of Baker & McKenzie,  101  West
Broadway, 12th Floor, San Diego, California 92101.

   b.        FORM OF PAYMENT.  On the Closing Date, (i) the Buyer
shall  pay  the Purchase Price for the Note by wire  transfer  of
immediately  available funds to the Company, in  accordance  with
the  Company's written wire instructions, against delivery of the
Note  duly  executed by the Company and (ii)  the  Company  shall
deliver the Note against delivery of the Purchase Price.



                                    12


<PAGE> 13


          7.        CONDITIONS TO THE COMPANY'S OBLIGATION TO SELL.

                 The   Buyer   understands  that  the   Company's
obligation  to  sell  the  Note to the  Buyer  pursuant  to  this
Agreement is conditioned upon:

   a.        The receipt and acceptance by the Buyer of this
Agreement  as  evidenced by execution of this  Agreement  by  the
Buyer;

   b.        Delivery by the Buyer to the Company of good funds as
payment in full of an amount equal to the Purchase Price for  the
Note in accordance with Section 1 hereof; and

   c.        The accuracy in all material respects on the Closing
Date of the representations and warranties of the Buyer contained
in  this  Agreement  as  if  made on the  Closing  Date  and  the
performance  by the Buyer on or before the Closing  Date  of  all
covenants and agreements of the Buyer required to be performed on
or before such Closing Date.

  8.        CONDITIONS TO THE BUYER'S OBLIGATION TO PURCHASE.

                The   Company  understands  that   the   Buyer's
obligation to purchase the Note is conditioned upon:

      a.        The execution and delivery by the Company of this
Agreement  and the Registration Rights Agreement and delivery  by
the  Company  to  the Buyer of the Note in accordance  with  this
Agreement;

    b.        The accuracy (in all material respects, except where
the  representation is qualified by materiality) on  the  Closing
Date  of  the  representations  and  warranties  of  the  Company
contained  in this Agreement as if made on the Closing  Date  and
the  performance by the Company on or before the Closing Date  of
all  covenants  and  agreements of the  Company  required  to  be
performed on or before the Closing Date;

      c.        On the Closing Date, the Buyer having received an
opinion  of counsel for the Company, dated the Closing  Date,  in
form,  scope and substance reasonably satisfactory to the  Buyer,
to the effect set forth in Annex V attached hereto;

   d.        On or before the Closing Date, trading in the Common
Stock  on  Nasdaq shall not have been suspended  by  the  SEC  or
Nasdaq; and

   e.        The Buyer shall have received an officer's certificate
described  in Section 3(b) above and an officer's certificate  as
to  the  matters described in clauses (b), (d) and  (e)  of  this
Section  8  (and  other  matters as the Buyers  shall  reasonably
request), dated the Closing Date.



                                    13


<PAGE> 14


 9.        MISCELLANEOUS.

  a.        This Agreement shall be governed by and interpreted in
accordance with the laws of the State of California as applied to
contracts  entered into between residents of and to be  performed
in such state.  The parties hereto hereby submit to the exclusive
jurisdiction of the United States Federal Courts located  in  San
Diego, California with respect to any dispute arising under  this
Agreement or the transactions contemplated hereby.

  b.        This Agreement may be executed in counterparts and by
the  parties  hereto  on  separate  counterparts,  all  of  which
together  shall  constitute  one  and  the  same  instrument.   A
facsimile  transmission of this Agreement bearing a signature  on
behalf  of  a  party hereto shall be legal and  binding  on  such
party.

    c.        The headings, captions and footers of this Agreement
are  for convenience of reference and shall not form part of,  or
affect the interpretation of, this Agreement.

   d.        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  or  the  validity   or
enforceability of this Agreement in any other jurisdiction.

  e.        This Agreement may be amended only by an instrument in
writing signed by the party to be charged with enforcement.

   f.        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, or  any  course  of  dealings
between the parties, shall not operate as a waiver thereof or  an
amendment hereof, nor shall any single or partial exercise of any
such  right  or  power, or any abandonment or  discontinuance  of
steps  to  enforce such a right or power, preclude any  other  or
further exercise thereof or exercise of any other right or power.

   g.        Any notices required or permitted to be given under the
terms  of  this  Agreement shall be sent  by  mail  or  delivered
personally  (which  shall include facsimile transmission)  or  by
courier  and shall be effective five days after being  placed  in
the mail, if mailed, or upon receipt, if delivered personally  or
by  courier, in the case of the Company addressed to the  Company
at  its  address  shown  in the introductory  paragraph  of  this
Agreement (facsimile number 619-453-5848) or, in the case of  the
Buyer,  at  its  address  shown on the  signature  page  of  this
Agreement or such other address as a party shall have provided by
notice to the other party in accordance with this provision.  The
Buyer hereby designates as its address for any notice required or
permitted  to  be  given to the Buyer pursuant to  the  Note  the
address shown on the signature page of this Agreement.


                                    14


<PAGE> 15


  h.        The respective representations, warranties, covenants
and  agreements  of the Buyer and the Company contained  in  this
Agreement or made by or on behalf of them, respectively, pursuant
to  this Agreement shall survive the delivery of payment for  the
Note and shall remain in full force and effect regardless of  any
investigation  made  by  or  on behalf  of  them  or  any  person
controlling or advising any of them.

   i.        This Agreement and its Annexes set forth the entire
agreement between the parties hereto with respect to the  subject
matter   hereof   and   supersedes  all  prior   agreements   and
understandings, whether written or oral, with respect thereto.

   j.        The Company shall be entitled, without the prior
approval  of the Buyer, to make any press release or SEC,  Nasdaq
or  NASD filings with respect to such transactions as is required
by  applicable law and regulations (although the Buyer  shall  be
consulted  by  the  Company in connection  with  any  such  press
release  prior to its release and shall be provided with  a  copy
thereof).  The Buyer shall not make any press release related  to
the  transactions  contemplated hereby or  any  public  statement
related   thereto,  except  statements  as  might  be  reasonably
necessary  to  the conduct of the business of Buyer (any  written
statements shall be provided to the Company and the Company shall
be consulted with prior to release).

     k.        All capitalized terms not otherwise defined herein
shall  have  the respective meanings set forth in the  Note,  the
Warrant and the Registration Rights Agreement.





                                    15

<PAGE> 16



               IN WITNESS WHEREOF, the parties hereto have caused
this  Agreement to be duly executed by their respective  officers
or their representatives thereunto duly authorized as of the date
first set forth above.

          PRINCIPAL AMOUNT OF NOTE:  $6,000,000.00

  PURCHASE PRICE:  $6,000,000.00

  RGC INTERNATIONAL INVESTORS, LDC

  By:          Rose Glen Capital Management, L.P.
               Investment Manager

  By: RGC General Partner Corp.



  By:  /s/ Wayne Bloch
       -----------------
  Name:  Wayne Bloch
  Its:  Managing Director

  Address:     c/o Rose Glen Capital Management, L.P.
               440 East Swedesford Road, Suite 2025
               Wayne, Pennsylvania  19087
               Facsimile No. (610) 971-2212


  LIDAK PHARMACEUTICALS



  By:     /s/ David H. Katz
          ------------------
  Name:   David H. Katz, M.D.
  Its:    President and Chief Executive Officer
















                                16



<PAGE> 1


                 REGISTRATION RIGHTS AGREEMENT

      REGISTRATION RIGHTS AGREEMENT (this "Agreement"), dated  as
of  February  26,  1997,  by and among LIDAK  PHARMACEUTICALS,  a
California corporation, with headquarters located at 11077  North
Torrey  Pines Road, La Jolla, California  92037 (the  "Company"),
and  the  undersigned  (together  with  its  affiliates  and  any
assignee  or transferee of all of its respective rights hereunder
as and to the extent permitted, the "Initial Investors").

     WHEREAS:

      A.    In connection with the Note Purchase Agreement by and
among  the  parties  hereto  of even  date  herewith  (the  "Note
Purchase Agreement"), the Company has agreed, upon the terms  and
subject to the conditions contained therein, to issue and sell to
the Initial Investor a Convertible Note in the original principal
amount of $6,000,000 (the "Note") that is convertible into  units
consisting  of  (i)  shares  (the  "Conversion  Shares")  of  the
Company's  Common Stock, no par value (the "Common  Stock"),  and
(ii) warrants (the "Warrants") to purchase a number of shares  of
Common  Stock (the "Warrant Shares") equal to one-half the number
of  Conversion Shares issuable upon each conversion of the  Note,
upon the terms and subject to the limitations and conditions  set
forth in the Note; and

      B.    To induce the Initial Investor to execute and deliver
the  Note  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 Initial Investor  hereby  agree
as follows:

     1.        DEFINITIONS.

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

        (i)       "Investors" means the Initial Investors and any
permitted  transferee or assignee who agrees to become  bound  by
the  provisions  of this Agreement in accordance with  Section  9
hereof.


                                


<PAGE> 2


 (ii)      "register," "registered," and "registration" refer to a
registration  effected  by preparing and  filing  a  Registration
Statement  or  Statements 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  by  the  United  States  Securities  and
Exchange Commission (the "SEC").

     (iii)          "Registrable Securities" means the Conversion
Shares  and the Warrant Shares issued or issuable and any  shares
of  capital stock issued or issuable in payment of interest on or
in  exchange  for  or  otherwise  with  respect  to  any  of  the
foregoing.

      (iv) "Registration Statement" means a registration statement
of the Company under the 1933 Act.

      b.   Capitalized terms used herein and not otherwise defined
herein  shall have the respective meanings set forth in the  Note
Purchase Agreement.

     2.        REGISTRATION.

        a.     MANDATORY REGISTRATION.  The Company shall prepare,
and,  on or prior to the date which is thirty (30) business  days
after  the  date of the closing under the Note Purchase Agreement
(the  "Closing Date"), file with the SEC a Registration Statement
on  Form S-3 (or, if Form S-3 is not then available, on such form
of  Registration  Statement  as is then  available  to  effect  a
registration  of  the  Registrable  Securities,  subject  to  the
consent  of  the  Initial Investor, which  consent  will  not  be
unreasonably  withheld) covering the resale  of  the  Registrable
Securities   underlying  the  Note  and   the   Warrants,   which
Registration  Statement, to the extent allowable under  the  1933
Act  and  the Rules promulgated thereunder (including Rule  416),
shall  state  that such Registration Statement also  covers  such
indeterminate number of additional shares of Common Stock as  may
become  issuable upon conversion of the Note and exercise of  the
Warrants  (i)  to prevent dilution resulting from  stock  splits,
stock  dividends  or similar transactions or (ii)  by  reason  of
changes in the Conversion Price of the Note or the Exercise Price
of the Warrants in accordance with the terms thereof.  The number
of shares of Common Stock included in such Registration Statement
shall be no less than 150% (one hundred and fifty percent) of the
Maximum Share Amount set forth in Section 2.6 of the Note.  If at
any time (i) the number of shares of Common Stock included in the
Registration  Statement required to be filed as provided  in  the
first  sentence  of  this Section 2(a) shall be  insufficient  to
cover the number of shares of Common Stock issuable on conversion
in  full  of  the unconverted Note and exercise in  full  of  the
unexercised  Warrants  and  Warrants which  may  be  issued  upon
exercise  of  the  unconverted  Note  (including  any  Prepayment
Warrants  issued  pursuant to the Note) and (ii)  a  New  Maximum
Share  Amount  has  been  approved or the Company  has  otherwise
received approval from The Nasdaq Stock Market to issue a  number
of  shares  greater than the Maximum Share Amount, then promptly,
but in no event later than 20 days after such insufficiency shall
occur,  the  Company  shall file with  the  SEC  as  promptly  as
practicable  an  additional Registration Statement  on  Form  S-3
(which  shall  not constitute a post-effective amendment  to  the
Registration  Statement filed pursuant to the first  sentence  of
this  Section 2(a)) covering such additional number of shares  of
Common Stock.  For all purposes of this Agreement


                                   2

<PAGE> 3

such additional Registration Statement shall be deemed to be  the
Registration  Statement  required to  be  filed  by  the  Company
pursuant  to Section 2(a) of this Agreement, and the Company  and
the  Investors  shall have the same rights and  obligations  with
respect  to such additional Registration Statement as they  shall
have  with respect to the initial Registration Statement required
to be filed by the Company pursuant to this Section 2(a).

   b.        UNDERWRITTEN OFFERING.  If any offering pursuant to a
Registration  Statement pursuant to Section 2(a) hereof  involves
an  underwritten offering, the Investors who hold a  majority  in
interest   of   the  Registrable  Securities  subject   to   such
underwritten offering, with the consent of the Initial  Investor,
shall  have  the  right  to  select  one  legal  counsel  and  an
investment   banker  or  bankers  and  manager  or  managers   to
administer  the offering, which investment banker or  bankers  or
manager  or  managers  shall be reasonably  satisfactory  to  the
Company.  The Investors who hold the Registrable Securities to be
included   in   such  underwriting  shall  pay  all  underwriting
discounts  and  commissions and other fees and expenses  of  such
investment banker or bankers and manager or managers so  selected
in  accordance  with  this  Section 2(b)  (other  than  fees  and
expenses relating to registration of Registrable Securities under
federal  or  state  securities laws, which  are  payable  by  the
Company  pursuant  to  Section 5 hereof) with  respect  to  their
Registrable  Securities and the fees and expenses of  such  legal
counsel so selected by the Investors.

   c.     PAYMENTS  BY THE COMPANY.  The Company shall  use  its
best   efforts   to  obtain  effectiveness  of  the  Registration
Statement  as  soon  as  practicable.  If  (i)  the  Registration
Statement(s) covering the Registrable Securities required  to  be
filed  by  the  Company pursuant to Section 2(a)  hereof  is  not
declared  effective by the SEC within ninety (90) days after  the
Closing  Date  (other than by reason of delay  caused  by  (a)  a
change in a relevant policy, procedure, interpretation, position,
practice or rule of the SEC announced after the Closing Date,  or
(b)  any act or failure to act by the Investors) or if, after the
Registration Statement has been declared effective  by  the  SEC,
sales  cannot be made pursuant to the Registration Statement  (by
reason  of  stop order, or the Company's failure  to  update  the
Registration Statement), or (ii) the Common Stock is  not  listed
or  included  for  quotation on the NASDAQ National  Market  (the
"NASDAQ-NMS"), the NASDAQ Small Cap System ("NASDAQ Small  Cap"),
the  New  York Stock Exchange (the "NYSE") or the American  Stock
Exchange  (the  "AMEX")  after being so listed  or  included  for
quotation,  then the Company will make payments to the  Investors
in such amounts and at such times as shall be determined pursuant
to  this  Section 2(c) as partial relief for the damages  to  the
Investors  by reason of any such delay in or reduction  of  their
ability  to  sell the Registrable Securities (which remedy  shall
not  be  exclusive of any other remedies available at law  or  in
equity).   The  Company shall pay to each holder of  Registerable
Securities an amount equal to the aggregate "Purchase Price"  (as
defined  below)  of  the Note or portions thereof  held  by  such
Investors  (including, without limitation, the  Note  or  portion
thereof  that  has  been  converted into  Conversion  Shares  and
Warrants  (including Warrant Shares) then held by such Investors)
multiplied by the Applicable Percentage (as defined below)  times
the  sum  of:  (i)  the  number of 30-day periods  (prorated  for
periods of less than 30 days) after the end of such 90-day period
and  prior  to  the date the Registration Statement  is  declared
effective  by  the SEC, provided, however, that  there  shall  be
excluded   from   such  period  any  delays  which   are   solely
attributable to changes in the Registration Statement required by
the  Investors  with  respect  to  information  relating  to  the
Investors, including, without limitation, changes


                                   3

<PAGE> 4

to  the  plan of distribution, or to the failure of the Investors
to conduct their review of the registration statement pursuant to
Section 3(i) below in a reasonably prompt manner; (ii) the number
of  30-day  periods (prorated for periods of less than  30  days)
that  sales cannot be made pursuant to the Registration Statement
after the Registration Statement has been declared effective; and
(iii) the number of 30-day periods (prorated for periods of  less
than 30 days) that the Common Stock is not listed or included for
quotation on the NASDAQ-NMS, NASDAQ Small Cap, NYSE or AMEX after
the  Registration  Statement has been declared  effective.   (For
example, if the Registration Statement becomes effective 30  days
after  the  end  of  such 90-day period, the  Company  would  pay
$30,000  for  each $1,000,000 of Purchase Price;  if  thereafter,
sales  could  not be made pursuant to the Registration  Statement
for  an  additional period of 30 days, the Company would  pay  an
additional $30,000 for each $1,000,000 of Purchase Price.)   Such
amounts shall be paid in cash or, at each Investor's option,  may
be  convertible into Common Stock and Warrants at the "Conversion
Price"  (as  defined in the Note).  Any shares  of  Common  Stock
(including   Common  Stock   underlying  Warrants)  issued   upon
conversion  of such amounts shall be Registrable Securities.   If
the  Investor  desires to convert the amounts due hereunder  into
Registrable Securities, it shall so notify the Company in writing
within two (2) business days after the date on which such amounts
are  first  payable  in  cash  and  such  amounts  shall  be   so
convertible (pursuant to the mechanics set forth under Article II
of  the  Note for conversion of the Note as if such amounts  were
part  of the Note), beginning on the last day upon which the cash
amount  would  otherwise be due in accordance with the  following
sentence.  Payments of cash pursuant hereto shall be made  within
five  (5)  days after the end of each period that gives  rise  to
such  obligation, provided that, if any such period  extends  for
more  than thirty (30) days, interim payments shall be  made  for
each  such  thirty  (30) day period.  The  term "Purchase  Price"
means  the  purchase price paid by the Initial Investor  for  the
Note  or  the  portion  thereof held by  an  Investor.  The  term
"Applicable Percentage" means three one-hundredths (.030).

 d.        PIGGY-BACK REGISTRATIONS.  If at any time prior to the
expiration  of  the Registration Period (as hereinafter  defined)
the  Company  shall  file  with the SEC a Registration  Statement
relating  to  an offering for its own account or the  account  of
others  under the 1933 Act of any of its equity securities (other
than  on  Form S-4 or Form S-8 or their then equivalents relating
to  equity securities to be issued solely in connection with  any
acquisition  of  any  entity  or business  or  equity  securities
issuable  in  connection  with stock  option  or  other  employee
benefit  plans), the Company shall send to each Investor  who  is
entitled  to registration rights under this Section 2(d)  written
notice  of  such determination and, if within fifteen  (15)  days
after  the effective date of such notice, such Investor shall  so
request   in   writing,  the  Company  shall  include   in   such
Registration  Statement  all  or  any  part  of  the  Registrable
Securities  such Investor requests to be registered, except  that
if,  in connection with any underwritten public offering for  the
account of the Company the managing underwriter(s) thereof  shall
impose a limitation on the number of shares of Common Stock which
may  be  included in the Registration Statement because, in  such
underwriter(s)' judgment, marketing or other factors dictate such
limitation  is necessary to facilitate public distribution,  then
the  Company  shall be obligated to include in such  Registration
Statement only such limited portion of the Registrable Securities
with  respect  to  which  such Investor has  requested  inclusion
hereunder  as  the  underwriter shall permit.  Any  exclusion  of
Registrable Securities shall be made pro rata among the Investors
seeking to include Registrable Securities in proportion to the


                                   4

<PAGE> 5


number  of Registrable Securities sought to be included  by  such
Investors; PROVIDED, HOWEVER, that the Company shall not  exclude
any  Registrable Securities unless the Company has first excluded
all outstanding securities, the holders of which are not entitled
by  right  existing  as of the date hereof to inclusion  of  such
securities in such Registration Statement or are not entitled  to
pro rata inclusion with the Registrable Securities; and PROVIDED,
FURTHER,  HOWEVER, that, after giving effect to  the  immediately
preceding proviso, any exclusion of Registrable Securities  shall
be  made  pro  rata with holders of other securities  having  the
right  existing as of the date hereof to include such  securities
in  the  Registration Statement other than holders of  securities
entitled  to  inclusion of their securities in such  Registration
Statement,   based  on  the  number  of  securities   for   which
registration  is  requested except to the extent  such  pro  rata
exclusion  of  such  other  securities is  prohibited  under  any
written agreement entered into by the Company with the holder  of
such  other  securities prior to the date of this  Agreement,  in
which case such other securities shall be excluded, if at all, in
accordance  with  the  terms  of such  agreement.   No  right  to
registration  of Registrable Securities under this  Section  2(d)
shall  be  construed  to  limit any registration  required  under
Section  2(a) hereof.  The obligations of the Company under  this
Section  2(d)  may be waived by Investors holding a  majority  in
interest of the Registrable Securities and shall expire after the
Company  has  afforded  the  opportunity  for  the  Investors  to
exercise  registration rights under this  Section  2(d)  for  two
registrations;  PROVIDED, HOWEVER, that any  Investor  who  shall
have   had   any   Registrable  Securities  excluded   from   any
Registration Statement in accordance with this Section 2(d) shall
be  entitled  to include in an additional Registration  Statement
filed  by  the  Company the Registrable Securities  so  excluded.
Notwithstanding  any other provision of this  Agreement,  if  the
Registration Statement required to be filed pursuant  to  Section
2(a)  of this Agreement shall have been ordered effective by  the
SEC  and  the Company shall have maintained the effectiveness  of
such Registration Statement as required by this Agreement and  if
the  Company  shall  otherwise  have  complied  in  all  material
respects  with  its  obligations under this Agreement,  then  the
Company  shall  not  be  obligated to  register  any  Registrable
Securities  on such Registration Statement referred  to  in  this
Section  2(d)  unless the Registration Statement referred  to  in
this Section 2(d) is an underwritten offering, in which case  the
Company shall be obligated to comply with this Section 2(d).

   e.        ELIGIBILITY FOR FORM S-3.  The Company represents and
warrants  that it meets the requirements for the use of Form  S-3
for  registration  of the sale by the Initial  Investor  and  any
other  Investor  of the Registrable Securities  and  the  Company
shall  file all reports required to be filed by the Company  with
the SEC in a timely manner so as to maintain such eligibility for
the use of Form S-3.

     3.        OBLIGATIONS OF THE COMPANY.

           In connection with the registration of the Registrable
Securities, the Company shall have the following obligations:

a.         The Company shall prepare promptly, and file with  the
SEC  not  later than thirty (30) business days after the  Closing
Date,  a  Registration Statement with respect to  the  number  of
Registrable  Securities provided in Section 2(a), and  thereafter
use  its  best  efforts  to  cause  such  Registration  Statement
relating to Registrable Securities to become effective as soon as
possible



                                   5

<PAGE> 6

 after such filing, and keep the Registration Statement effective
pursuant  to  Rule 415 at all times until such  date  as  is  the
earlier  of  (i)  the  date  on  which  all  of  the  Registrable
Securities have been sold by the Investors and (ii) the  date  on
which  the  Registrable Securities (in the opinion of counsel  to
the   Initial   Investor)   may  be  immediately   sold   without
registration  (the  "Registration  Period"),  which  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 not misleading.

   b.        The Company shall prepare and file with the SEC such
amendments  (including post-effective amendments) and supplements
to   the  Registration  Statement  and  the  prospectus  used  in
connection with the Registration Statement as may be necessary to
keep the 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  until such time as all of such Registrable  Securities
have been disposed of in accordance with the intended methods  of
disposition by the seller or sellers thereof as set forth in  the
Registration  Statement.   In  the event  the  number  of  shares
available under a Registration Statement filed pursuant  to  this
Agreement  is  insufficient  to  cover  all  of  the  Registrable
Securities  required to be registered pursuant to this Agreement,
the Company shall file a new Registration Statement (on the short
form  available therefor, if applicable), so as to cover  all  of
the Registrable Securities, in each case, as soon as practicable,
but  in  any  event within thirty (30) business  days  after  the
necessity  therefor  arises (based on the  market  price  of  the
Common  Stock  and  other relevant factors on which  the  Company
reasonably  elects  to rely).  The Company  shall  use  its  best
efforts  to  cause  such  new Registration  Statement  to  become
effective  as  soon as practicable following the filing  thereof.
The  provisions  of Section 2(c) above shall be  applicable  with
respect  to  such obligation, with the ninety (90)  days  running
from the day after the date on which the Company reasonably first
determines  (or reasonably should have determined) the  need  for
the registration of such additional Registrable Securities.

       c.        The Company shall furnish to each Investor whose
Registrable Securities are included in the Registration Statement
and its legal counsel (i) promptly after the same is prepared and
publicly  distributed, filed with the SEC,  or  received  by  the
Company, one copy of the Registration Statement and any amendment
thereto,  each  preliminary prospectus and  prospectus  and  each
amendment  or  supplement  thereto,  and,  in  the  case  of  the
Registration Statement referred to in Section 2(a),  each  letter
written by or on behalf of the Company to the SEC or the staff of
the  SEC,  and each item of correspondence from the  SEC  or  the
staff  of  the  SEC,  in each case relating to such  Registration
Statement or the documents incorporated therein (other  than  any
portion  of any thereof which contains information for which  the
Company has sought confidential treatment), and (ii) such  number
of  copies  of a prospectus, including a preliminary  prospectus,
and  all  amendments  and  supplements  thereto  and  such  other
documents  as such Investor may reasonably request  in  order  to
facilitate the disposition of the Registrable Securities owned by
such Investor.

d.         The  Company  shall  use  reasonable  efforts  to  (i)
register  and qualify the Registrable Securities covered  by  the
Registration Statement under such other securities or "blue  sky"
laws  of such jurisdictions in the United States as the Investors
who hold a majority in interest


                               6


<PAGE> 7

of  the  Registrable Securities being offered reasonably request,
(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 (a) qualify to do  business  in  any
jurisdiction where it would not otherwise be required to  qualify
but for this Section 3(d), (b) subject itself to general taxation
in  any  such jurisdiction, (c) file a general consent to service
of process in any such jurisdiction, (d) provide any undertakings
that  cause the Company undue expense or burden, or (e) make  any
change in its charter or bylaws, which in each case the Board  of
Directors  of the Company determines to be contrary to  the  best
interests of the Company and its stockholders.

  e.        In the event that the Registrable Securities are being
offered in an underwritten offering, the Company shall enter into
and  perform its obligations under an underwriting agreement,  in
usual   and   customary  form,  including,  without   limitation,
customary indemnification and contribution obligations, with  the
underwriters of such offering.

f.        As promptly as practicable after becoming aware of such
event, the Company shall notify each Investor of the happening of
any  event,  of which the Company has knowledge, as a  result  of
which  the prospectus included in the Registration Statement,  as
then  in effect, includes an untrue statement of a material  fact
or  omission  to  state  a material fact required  to  be  stated
therein   or  necessary  to  make  the  statements  therein   not
misleading,  and  use  its best efforts  promptly  to  prepare  a
supplement or amendment to the Registration Statement to  correct
such  untrue  statement or omission, and deliver such  number  of
copies  of such supplement or amendment to each Investor as  such
Investor may reasonably request.

   g.        The Company shall use its best efforts to prevent the
issuance  of  any stop order or other suspension of effectiveness
of  a Registration Statement, and, if such an order is issued, to
obtain  the  withdrawal  of such order at the  earliest  possible
moment   and  to  notify  each  Investor  who  holds  Registrable
Securities  being  sold  (or, in the  event  of  an  underwritten
offering,  the  managing underwriters) of the  issuance  of  such
order and the resolution thereof.

     h.        The Company shall as promptly as practicable after
becoming  aware  of  such event, notify each Investor  who  holds
Registrable  Securities  being sold  (or,  in  the  event  of  an
underwritten offering, the managing underwriters) of the issuance
by the SEC of any stop order or other suspension of effectiveness
of the Registration Statement at the earliest possible time.

      i.        The Company shall permit a single firm of counsel
designated  by  the Initial Investors to review the  Registration
Statement and all amendments and supplements thereto (as well  as
all  requests  for  acceleration  or  effectiveness  thereof)   a
reasonable period of time prior to their filing with the SEC, and
not  file any document in a form to which such counsel reasonably
objects.


                                  7


<PAGE> 8


      j.        The Company shall make generally available to its
security holders as soon as practical, but not later than  ninety
(90)  days  after  the  close of the period covered  thereby,  an
earnings statement (in form complying with the provisions of Rule
158  under the 1933 Act) covering a twelve-month period beginning
not later than the first day of the Company's fiscal quarter next
following the effective date of the Registration Statement.

      k.        At the request of any Investor, the Company shall
furnish, on the date that Registrable Securities are delivered to
an   underwriter,  if  any,  for  sale  in  connection  with  the
Registration Statement or, if such securities are not being  sold
by  an  underwriter, on the date of effectiveness thereof (i)  an
opinion,  dated  as of such date, from counsel  representing  the
Company  for  purposes of such Registration Statement,  in  form,
scope  and  substance as is customarily given in an  underwritten
public  offering, addressed to the underwriters, if any, and  the
Investors  and (ii) a letter, dated such date, from the Company's
independent certified public accountants in form and substance as
is  customarily given by independent certified public accountants
to  underwriters in an underwritten public offering, addressed to
the underwriters, if any, and the Investors.

l.         The Company shall make available for inspection by (i)
any   Investor,  (ii)  any  underwriter  participating   in   any
disposition  pursuant  to the Registration Statement,  (iii)  one
firm  of  attorneys and one firm of accountants or  other  agents
retained by the Initial Investors, (iv) one firm of attorneys and
one  firm  of accountants or other agents retained by  all  other
Investors,  and (v) one firm of attorneys retained  by  all  such
underwriters  (collectively,  the  "Inspectors")  all   pertinent
financial  and  other records, and pertinent corporate  documents
and  properties of the Company (collectively, the "Records"),  as
shall  be reasonably deemed necessary by each Inspector to enable
each Inspector to exercise its due diligence responsibility,  and
cause  the Company's officers, directors and employees to  supply
all  information which any Inspector may reasonably  request  for
purposes  of  such  due diligence; PROVIDED, HOWEVER,  that  each
Inspector  shall  hold  in confidence  and  shall  not  make  any
disclosure  (except  to  an Investor)  of  any  Record  or  other
information  which the Company determines in  good  faith  to  be
confidential,  and of which determination the Inspectors  are  so
notified,  unless (a) the disclosure of such Records is necessary
to   avoid  or  correct  a  misstatement  or  omission   in   any
Registration  Statement,  (b) the  release  of  such  Records  is
ordered  pursuant to a subpoena or other order from  a  court  or
government body of competent jurisdiction, or (c) the information
in  such Records has been made generally available to the  public
other  than  by  disclosure in violation of  this  or  any  other
agreement.   The  Company shall not be required to  disclose  any
confidential  information in such Records to any Inspector  until
and unless such Inspector shall have entered into confidentiality
agreements  (in form and substance satisfactory to  the  Company)
with  the Company with respect thereto, substantially in the form
of  this Section 3(k).  Each Investor agrees that it shall,  upon
learning  that disclosure of such Records is sought in  or  by  a
court  or governmental body of competent jurisdiction or  through
other  means,  give prompt notice to the Company  and  allow  the
Company,  at  its  expense, to undertake  appropriate  action  to
prevent  disclosure of, or to obtain a protective order for,  the
Records   deemed  confidential.   Nothing  herein  (or   in   the
Confidentiality  Agreement between the Company and  the  Investor
dated  January 28, 1997) shall be deemed to limit the  Investor's
ability  to  sell  Registrable Securities in a  manner  which  is
otherwise  consistent with applicable laws and regulations.   The
Company  shall  hold  in  confidence  and  shall  not  make   any
disclosure of information concerning an Investor provided to  the
Company



                                   8

<PAGE> 9

pursuant  to  Section 4(e) hereof unless (i) disclosure  of  such
information  is  necessary  to  comply  with  federal  or   state
securities  laws,  (ii)  the disclosure of  such  information  is
necessary to avoid or correct a misstatement or omission  in  any
Registration Statement, (iii) the release of such information  is
ordered  pursuant to a subpoena or other order from  a  court  or
governmental  body  of  competent  jurisdiction  or   (iv)   such
information has been made generally available to the public other
than  by  disclosure in violation of this or any other agreement.
The  Company  agrees it shall, upon learning that  disclosure  of
such  information concerning an Investor is sought  in  or  by  a
court  or governmental body of competent jurisdiction or  through
other means, give prompt notice to such Investor, at its expense,
to  undertake appropriate action to prevent disclosure of, or  to
obtain a protective order for, such information.

    m.        The Company shall use its best efforts either to (i)
cause  all the Registrable Securities covered by the Registration
Statement  to be listed on each national 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 the designation and quotation,  of  all
the  Registrable Securities covered by the Registration Statement
on  the NASDAQ-NMS or, if not eligible for the NASDAQ-NMS on  the
NASDAQ Small Cap.

         n.        The Company shall provide a transfer agent and
registrar,  which  may be a single entity,  for  the  Registrable
Securities  not later than the effective date of the Registration
Statement.

 o.        The Company shall cooperate with the Investors who hold
Registrable Securities being offered and the managing underwriter
or underwriters, if any, to facilitate the timely preparation and
delivery  of  certificates (not bearing any restrictive  legends)
representing Registrable Securities to be offered pursuant to the
Registration Statement and enable such certificates to be in such
denominations  or amounts, as the case may be,  as  the  managing
underwriter  or  underwriters,  if  any,  or  the  Investors  may
reasonably  request and registered in such names as the  managing
underwriter  or  underwriters,  if  any,  or  the  Investors  may
request, and, within three (3) business days after a Registration
Statement  which  includes  Registrable  Securities  is   ordered
effective by the SEC, the Company shall deliver, and shall  cause
legal counsel selected by the Company to deliver, to the transfer
agent  for  the  Registrable  Securities  (with  copies  to   the
Investors  whose  Registrable Securities  are  included  in  such
Registration  Statement)  an instruction  in  the  form  attached
hereto  as  Exhibit 1 to facilitate the public offering  of  such
securities  and an opinion of such counsel in the  form  attached
hereto as Exhibit 2.

    p.        The Company shall take all other reasonable actions
necessary to expedite and facilitate disposition by the Investors
of Registrable Securities pursuant to the Registration Statement.

     4.        OBLIGATIONS OF THE INVESTORS.

           In connection with the registration of the Registrable
Securities, the Investors shall have the following obligations:


                                  9


<PAGE> 10

   a.      It shall be a condition precedent to the obligations of
the  Company  to  complete  the  registration  pursuant  to  this
Agreement  with  respect  to  the  Registrable  Securities  of  a
particular  Investor  that such 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.   At
least  three  (3)  business days prior to the  first  anticipated
filing  date  of  the Registration Statement, the  Company  shall
notify each Investor of the information the Company requires from
each such Investor if such Investor.

    b.        Each Investor, by such Investor's acceptance of the
Registrable Securities, agrees to cooperate with the  Company  as
reasonably  requested  by  the Company  in  connection  with  the
preparation  and filing of the Registration Statement  hereunder,
unless such Investor has notified the Company in writing of  such
Investor's election to exclude all of such Investor's Registrable
Securities from the Registration Statement.

    c.       In the event Investors holding a majority-in-interest
of the Registrable Securities being registered (with the approval
of  the Initial Investor) determine to engage the services of  an
underwriter, each Investor agrees to enter into and perform  such
Investor's obligations under an underwriting agreement, in  usual
and  customary  form,  including, without  limitation,  customary
indemnification and contribution obligations, with  the  managing
underwriter of such offering and take such other actions  as  are
reasonably  required  in  order to  expedite  or  facilitate  the
disposition  of the Registrable Securities, unless such  Investor
has  notified the Company in writing of such Investor's  election
to exclude all of such Investor's Registrable Securities from the
Registration Statement.

      d.    Each Investor agrees that, upon receipt of any notice
from  the  Company  of the happening of any  event  of  the  kind
described in Section 3(f) or 3(g), such Investor will immediately
discontinue disposition of Registrable Securities pursuant to the
Registration Statement covering such Registrable Securities until
such  Investor's  receipt of the copies of  the  supplemented  or
amended  prospectus contemplated by Section 3(f) or 3(g) and,  if
so  directed by the Company, such Investor shall deliver  to  the
Company  (at the expense of the Company) or destroy (and  deliver
to  the Company a certificate of destruction) all copies in  such
Investor's   possession,   of  the   prospectus   covering   such
Registrable  Securities current at the time of  receipt  of  such
notice.

        e.        No Investor may participate in any underwritten
registration  hereunder unless such Investor (i) agrees  to  sell
such  Investor's Registrable Securities on the basis provided  in
any underwriting arrangements in usual and customary form entered
into   by   the   Company,  (ii)  completes  and   executes   all
questionnaires,  powers  of  attorney, indemnities,  underwriting
agreements  and  other documents reasonably  required  under  the
terms of such underwriting arrangements, and (iii) agrees to  pay
its  pro rata share of all underwriting discounts and commissions
and  any  expenses  in  excess of those payable  by  the  Company
pursuant to Section 5 below.


                                  10


<PAGE> 11


     5.        EXPENSES OF REGISTRATION.

           All  reasonable  expenses 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  the
fees  and disbursements of counsel for the Company shall be borne
by  the  Company  other  than (i) the fees and  disbursements  of
counsel,  accountants and other professional investors,  selected
by  the Initial Investor pursuant to Section 2(b) hereof and (ii)
underwriting discounts and commissions.

     6.        INDEMNIFICATION.

          In the event any Registrable Securities are included in
a Registration Statement under this Agreement:

a.         To  the  extent  permitted by law,  the  Company  will
indemnify, hold harmless and defend (i) each Investor  who  holds
such   Registrable  Securities,  (ii)  the  directors,  officers,
partners,  employees,  agents and each person  who  controls  any
Investor  within  the meaning of the 1933 Act or  the  Securities
Exchange  Act of 1934, as amended (the "1934 Act"), if  any,  and
(iii)  any  underwriter  (as defined in the  1933  Act)  for  the
Investors;  and the directors, officers, partners, employees  and
each  person who controls any such underwriter within the meaning
of  the  1933 Act or the 1934 Act, if any, (each, an "Indemnified
Person"),  against any joint or several losses, claims,  damages,
liabilities  or expenses  (collectively, together  with  actions,
proceedings  or  inquiries by any regulatory  or  self-regulatory
organization,  whether  commenced  or  threatened,   in   respect
thereof,  "Claims")  to  which any of  them  may  become  subject
insofar  as such Claims arise out of or are based upon:  (i)  any
untrue  statement or alleged untrue statement of a material  fact
in  a  Registration Statement or the omission or alleged omission
to  state  therein  a  material fact required  to  be  stated  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, or (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 (the matters in the foregoing clauses
(i) through (iii) being, collectively, "Violations").  Subject to
the  restrictions set forth in Section 6(c) with respect  to  the
number  of  legal  counsel,  the  Company  shall  reimburse   the
Investors  and  each  such  underwriter  or  controlling  person,
promptly  as such expenses are incurred and are due and  payable,
for  any  reasonable  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 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  any  Indemnified Person or underwriter for  such  Indemnified
Person  expressly for use in connection with the  preparation  of
the



                                   11

<PAGE> 12



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) hereof; (ii) 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;  and
(iii) with respect to any preliminary prospectus, shall not inure
to  the benefit of any Indemnified Person if the untrue statement
or  omission  of  material  fact  contained  in  the  preliminary
prospectus was corrected on a timely basis in the prospectus,  as
then  amended  or  supplemented, such  corrected  prospectus  was
timely  made  available by the Company pursuant to  Section  3(c)
hereof,  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  advise, used  it.   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  Investors
pursuant to Section 9.

   b.     In connection with any Registration Statement in which
an Investor is participating, each such Investor agrees severally
and  not jointly to indemnify, hold harmless and defend,  to  the
same extent and in the same manner set forth in Section 6(a), the
Company,  each of its directors, each of its officers  who  signs
the Registration Statement, each person, if any, who controls the
Company  within the meaning of the 1933 Act or the 1934 Act,  any
underwriter and any other stockholder selling securities pursuant
to the Registration Statement or any of its directors or officers
or any person who controls such stockholder or underwriter within
the  meaning  of  the 1933 Act or the 1934 Act (collectively  and
together  with  an  Indemnified Person, an "Indemnified  Party"),
against any Claim to which any of them may become subject,  under
the  1933  Act, the 1934 Act or otherwise, insofar as such  Claim
arises out of or is 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 such Investor expressly for  use  in
connection  with  such  Registration Statement;  and  subject  to
Section  6(c)  such Investor will reimburse any  legal  or  other
expenses (promptly as such expenses are incurred and are due  and
payable)   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) shall
not  apply  to  amounts paid in settlement of any Claim  if  such
settlement is effected without the prior written consent of  such
Investor,  which  consent  shall not  be  unreasonably  withheld;
PROVIDED,  FURTHER, HOWEVER, that the Investor  shall  be  liable
under this Agreement (including this Section 6(b) and Section  7)
for  only that amount as does not exceed the net proceeds to such
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  Investors
pursuant  to Section 9. Notwithstanding anything to the  contrary
contained herein, the indemnification agreement contained in this
Section 6(b) with respect to any preliminary prospectus shall not
inure  to  the  benefit of any Indemnified Party  if  the  untrue
statement  or  omission  of  material  fact  contained   in   the
preliminary  prospectus was corrected on a timely  basis  in  the
prospectus, as then amended or supplemented.

      c.   Promptly  after  receipt by an Indemnified  Person  or
Indemnified  Party  under  this  Section  6  of  notice  of   the
commencement of any action (including any governmental action),



                                   12

<PAGE> 13


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 indemnifying party shall pay for  only
one  separate legal counsel for  the Indemnified Persons  or  the
Indemnified Parties, as applicable, and such legal counsel  shall
be  selected by Investors holding a majority-in-interest  of  the
Registrable Securities included in the Registration Statement  to
which   the   Claim   relates   (with   the   approval    of    a
majority-in-interest of the Initial Investors), if the  Investors
are entitled to indemnification hereunder, or the Company, if the
Company  is entitled to indemnification hereunder, as applicable.
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  actually
prejudiced   in   its  ability  to  defend  such   action.    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 such  expense,  loss,  damage  or
liability is incurred and is due and payable.

     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 contribution shall be made under circumstances where the maker
would  not  have been liable for indemnification under the  fault
standards  set forth in Section 6, (ii) 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  such  fraudulent  misrepresentation,  and  (iii)
contribution   (together  with  any  indemnification   or   other
obligations  under this Agreement) 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.






                                  13


<PAGE> 14


     8.        REPORTS UNDER THE 1934 ACT.

           With  a view to making available to the Investors  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  investors  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 (it being understood that nothing herein shall limit
the  Company's  obligations under Section 4(c) of the  Securities
Purchase  Agreement)  and the filing of such  reports  and  other
documents is required for the applicable provisions of Rule  144;
and

     c.    furnish to each Investor so long as such Investor owns
Registrable  Securities, promptly upon  request,  (i)  a  written
statement  by the Company that it has complied with the reporting
requirements 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 Investors to sell such securities pursuant to Rule 144
without registration.

     9.        ASSIGNMENT OF REGISTRATION RIGHTS.

           The  rights  to have the Company register  Registrable
Securities  pursuant  to  this Agreement shall  be  automatically
assignable  by  the Investors 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)   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,  (v)  such
transfer  shall have been made in accordance with the  applicable
requirements of the Securities Purchase Agreement, and (vi)  such
transferee shall be an "accredited investor" as that term defined
in  Rule  501  of Regulation D promulgated under  the  1933  Act.
Nothing  herein shall affect the assignment of rights to  a  bona
fide pledgee of the Registrable Securities.







                                  14


<PAGE> 15

     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  written consent of the Company, each of  the  Initial
Investors  (to  the  extent  such  Initial  Investor  still  owns
Registrable  Securities)  and  Investors  who  hold  a   majority
interest of the Registrable Securities.  Any amendment or  waiver
effected in accordance with this Section 10 shall be binding upon
each Investor and the Company.

     11.       MISCELLANEOUS.

          a.        A person or entity is deemed to be a holder of
Registrable  Securities whenever such person or  entity  owns  of
record  such  Registrable Securities.  If  the  Company  receives
conflicting instructions, notices or elections from two  or  more
persons   or  entities  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.        Notices required or permitted to be given hereunder
shall  be in writing and shall be deemed to be sufficiently given
when personally delivered (by hand, by courier, by telephone line
facsimile  transmission  or  other means)  or  which  receipt  is
refused  if delivered by hand or by courier or sent by  certified
mail,  return  receipt  requested, properly  addressed  and  with
proper postage pre-paid,

     if to the Company:

     LIDAK Pharmaceuticals
     11077 North Torrey Pines
     La Jolla, California  92037

     Attention: Chief Financial Officer

     Facsimile No.: (619) 453-5845






                                  15


<PAGE> 16


 With copy to:

 Baker & McKenzie
 The Wells Fargo Plaza
 101 West Broadway
 12th Floor
 San Diego, California  92101

 Attention: John J. Hentrich, Esq.

 Facsimile No.: (619) 236-0429

 if to the Initial Investor:

 c/o Rose Glen Capital Management, L.P.
 440 E. Swedesford Road
 Suite 2025
 Wayne, Pennsylvania  19807

 Attention: Mr. Wayne Bloch

 Facsimile No.: (610) 971-2211

  and  if to any Investor, at such address as such Investor shall
have provided in writing to the Company, or at such other address
as  each such party furnishes by notice given in accordance  with
this  Section  11(b),  and  shall be effective,  when  personally
delivered,  upon  receipt  and, when  so  sent  by  certified  or
registered  mail  (return  receipt requested),  five  days  after
deposit with the United States Postal Service.

     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.         This Agreement shall be enforced, governed by and
construed  in accordance with the laws of the State of California
applicable to agreements made and to be performed entirely within
such State.  In the event that any provision of this Agreement is
invalid or unenforceable under any applicable statute or rule  of
law,  then  such  provision shall be deemed  inoperative  to  the
extent  that  it  may  conflict therewith  and  shall  be  deemed
modified  to  conform  with such statute or  rule  of  law.   Any
provision  hereof which may prove invalid or unenforceable  under
any  law shall not affect the validity or enforceability  of  any
other provision hereof.  The parties hereto hereby submit to  the
exclusive  jurisdiction  of  the  United  States  Federal  Courts
located  in  San  Diego, California with respect to  any  dispute
arising  under  this  Agreement or the transactions  contemplated
hereby.



                                16


<PAGE> 17


     e.         This  Agreement  and the Note Purchase  Agreement
(together  with  all  annexes  thereto)  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  Note
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 hereof, this
Agreement shall inure to the benefit of and be binding  upon  the
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  two  or  more
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.

     j.   All consents and other determinations to be made by the
Investors  pursuant to this Agreement shall be made by  Investors
holding  a majority of the Registrable Securities, determined  as
if  the  outstanding  balance  of  the  Note  and  Warrants  then
outstanding (including Warrants issuable upon conversion  of  the
outstanding  balance  of the Note) have been  converted  into  or
exercised for Registrable Securities.






                                17


<PAGE> 18




           IN  WITNESS  WHEREOF, the Company and the  undersigned
Initial  Investor  have caused this Agreement to be duly executed
as of the date first above written

 LIDAK PHARMACEUTICALS



 By:   /s/David H. Katz
       --------------------
 Name:    David H. Katz, M.D.
 Its:     President and Chief Executive Officer

 RGC INTERNATIONAL INVESTORS, LDC

 By: Rose Glen Capital Management, L.P.
          Investment Manager

 By: RGC General Partner Corp.


 By:./s/Wayne Bloch
       ----------------------------------------------------
 Name: Wayne Bloch
 Its:  Managing Director



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