EXHIBIT 99.3

          THIS WARRANT AND THE SHARES OF COMMON STOCK ISSUABLE UPON THE
         EXERCISE OF THIS WARRANT (COLLECTIVELY, THE "SECURITIES") HAVE
        NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED
          (THE "SECURITIES ACT"), AND MAY NOT BE OFFERED OR SOLD IN THE
       UNITED STATES OR TO U.S. PERSONS (AS DEFINED IN REGULATION S UNDER
           THE SECURITIES ACT) UNLESS IN ACCORDANCE WITH REGULATION S,
         PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT, OR PURSUANT TO
            AN AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS
           UNDER THE SECURITIES ACT. IN ADDITION, HEDGING TRANSACTIONS
             INVOLVING THE SECURITIES MAY NOT BE CONDUCTED UNLESS IN
                       COMPLIANCE WITH THE SECURITIES ACT.


                               WARRANT TO PURCHASE

                    COMMON STOCK, PAR VALUE $.00001 PER SHARE

                                       OF

                          ADVANCED VIRAL RESEARCH CORP.
              ----------------------------------------------------


              This   certifies    that,   for   value    received,    RBB   BANK
AKTIENGESELLSCHAFT,  or  registered  assigns  ("Warrantholder"),  is entitled to
purchase from ADVANCED  VIRAL  RESEARCH CORP.  (the  "Company"),  subject to the
provisions  of this  Warrant,  at any time and from time to time until 5:00 p.m.
Eastern  Standard  Time on October 31,  2008,  375,000  shares of the  Company's
Common Stock, par value $.00001 per share ("Warrant Shares"). The purchase price
payable upon the exercise of this Warrant shall be $0.20 per Warrant Share.  The
Warrant  Price and the  number of  Warrant  Shares  which the  Warrantholder  is
entitled  to  purchase  is  subject to  adjustment  upon the  occurrence  of the
contingencies set forth in Section 3 of this Warrant,  and as adjusted from time
to time, such purchase price is hereinafter referred to as the "Warrant Price."

              This Warrant is subject to the following terms and conditions:

1.        EXERCISE OF WARRANT.
                  (1)      This Warrant may be exercised in whole or in part but
                           not for a  fractional  share.  Upon  delivery of this
                           Warrant  at the  offices  of the  Company  or at such
                           other  address as the Company may designate by notice
                           in writing to the  registered  holder hereof with the
                           Subscription   Form  annexed  hereto  duly  executed,
                           accompanied by payment of the Warrant





                           Price for the number of Warrant Shares  purchased (in
                           cash,   by   certified,   cashier's  or  other  check
                           acceptable  to the  Company,  by Common  Stock of the
                           Company   having  a  Market  Value  (as   hereinafter
                           defined) equal to the aggregate Warrant Price for the
                           Warrant Shares to be purchased, or any combination of
                           the foregoing), the registered holder of this Warrant
                           shall  be  entitled  to  receive  a  certificate   or
                           certificates  for the  Warrant  Shares so  purchased.
                           Such  certificate or  certificates  shall be promptly
                           delivered  to the  Warrantholder.  Upon  any  partial
                           exercise of this  Warrant,  the Company shall execute
                           and  deliver  a new  Warrant  of like  tenor  for the
                           balance of the Warrant Shares purchasable hereunder.

                  (2)      In  lieu  of  exercising  this  Warrant  pursuant  to
                           Section 1(1),  the holder may elect to receive shares
                           of Common  Stock  equal to the value of this  Warrant
                           determined  in the  manner  described  below  (or any
                           portion thereof remaining  unexercised) upon delivery
                           of this  Warrant at the  offices of the Company or at
                           such other  address as the Company may  designate  by
                           notice in writing  to the  registered  holder  hereof
                           with the Notice of  Cashless  Exercise  Form  annexed
                           hereto duly executed. In such event the Company shall
                           issue  to  the  holder  a  number  of  shares  of the
                           Company's  Common Stock  computed using the following
                           formula:

                                   X = Y (A-B)
                                       -------
                                        A

Where    X = the number of shares of Common Stock to be issued to the holder.
         Y = the number of shares of Common Stock purchasable under this Warrant
             (at the date of such calculation).
         A = the Market Value of the Company's  Common Stock on the business day
             immediately  preceding  the day on which  the  Notice  of  Cashless
             Exercise is received by the Company.
         B = Warrant Price (as adjusted to the date of such calculation).

                  (3)      The Warrant Shares deliverable  hereunder shall, upon
                           issuance,  be fully paid and  non-assessable  and the
                           Company  agrees that at all times  during the term of
                           this  Warrant  it  shall  cause  to be  reserved  for
                           issuance such number of shares of its Common Stock as
                           shall be required  for  issuance  and  delivery  upon
                           exercise of this Warrant.

                  (4)      For purposes of this  Warrant,  the Market Value of a
                           share of Common  Stock on any date  shall be equal to
                           (i) the closing  sale price per share as published by
                           a national  securities  exchange  on which  shares of
                           Common  Stock (or other  units of the  security)  are
                           traded (an  "Exchange")  on such date or, if there is
                           no sale of Common Stock on such date,  the average of
                           the bid and  asked  prices  on such  exchange  at the
                           close of trading  on such date or,  (ii) if shares of
                           Common Stock are not listed on a national  securities
                           exchange on such date, the closing price per share as
                           published on the National  Association  of Securities
                           Dealers Automatic Quotation System





                           ("NASDAQ")  National  Market System if the shares are
                           quoted  on such  system  on such  date,  or (iii) the
                           average   of  the  bid  and   asked   prices  in  the
                           over-the-counter  market at the close of  trading  on
                           such date if the shares are not traded on an exchange
                           or listed on the NASDAQ  National  Market System,  or
                           (iv) if the Common  Stock is not traded on a national
                           securities   exchange  or  in  the   over-the-counter
                           market,  the fair  market  value of a share of Common
                           Stock on such date as determined in good faith by the
                           Board of Directors.  If the holder disagrees with the
                           determination  of the Market Value of any  securities
                           of the Company  determined  by the Board of Directors
                           under  Section  1(4)(iv)  the  Market  Value  of such
                           securities  shall  be  determined  by an  independent
                           appraiser  acceptable  to the  Company and the holder
                           (or, if they cannot agree on such an appraiser, by an
                           independent  appraiser  selected by each of them, and
                           Market  Value  shall be the median of the  appraisals
                           made by such appraisers).  If there is one appraiser,
                           the cost of the  appraisal  shall be  shared  equally
                           between the Company and the holder.  If there are two
                           appraisers,  each of the Company and the holder shall
                           pay for its own appraisal.

2.       TRANSFER OR ASSIGNMENT OF WARRANT.

                  (1)      Any  assignment  or transfer of this Warrant shall be
                           made by  surrender  of this Warrant at the offices of
                           the  Company or at such other  address as the Company
                           may  designate  in writing to the  registered  holder
                           hereof with the  Assignment  Form annexed hereto duly
                           executed and  accompanied by payment of any requisite
                           transfer  taxes,  and  the  Company  shall,   without
                           charge,  execute  and  deliver a new  Warrant of like
                           tenor in the name of the  assignee for the portion so
                           assigned in case of only a partial assignment, with a
                           new  Warrant  of like tenor to the  assignor  for the
                           balance of the Warrant Shares purchasable.

                  (2)      Prior to any  assignment or transfer of this Warrant,
                           the  holder  thereof  shall  deliver  an  opinion  of
                           counsel  to  the  Company  to  the  effect  that  the
                           proposed    transfer   may   be   effected    without
                           registration under the Act.

3.       ADJUSTMENT OF WARRANT PRICE AND WARRANT SHARES -- ANTI-DILUTION
         PROVISIONS.

                                    A. (1) Except as  hereinafter  provided,  in
                           case the  Company  shall at any time  after  the date
                           hereof  issue any shares of Common  Stock  (including
                           shares  held  in  the  Company's   treasury)  without
                           consideration, then, and thereafter successively upon
                           each   issuance,   the   Warrant   Price  in   effect
                           immediately   prior  to  each  such  issuance   shall
                           forthwith  be  reduced  to  a  price   determined  by
                           multiplying  the Warrant Price in effect  immediately
                           prior to such issuance by a fraction:

                                    (a) the  numerator  of  which  shall be the
                                        total  number of shares of Common  Stock
                                        outstanding  immediately  prior  to such
                                        issuance, and





                                    (b) the  denominator  of  which shall be the
                                        total  number of shares of Common  Stock
                                        outstanding   immediately   after   such
                                        issuance.

          For the purposes of any  computation to be made in accordance with the
provisions of this clause (1), the following provisions shall be applicable:

                                        (i)       Shares   of    Common    Stock
                                                  issuable by way of dividend or
                                                  other   distribution   on  any
                                                  stock of the Company  shall be
                                                  deemed to have been issued and
                                                  to be outstanding at the close
                                                  of business on the record date
                                                  fixed for the determination of
                                                  stockholders    entitled    to
                                                  receive such dividend or other
                                                  distribution   and   shall  be
                                                  deemed  to  have  been  issued
                                                  without consideration.  Shares
                                                  of   Common    Stock    issued
                                                  otherwise  than as a dividend,
                                                  shall be  deemed  to have been
                                                  issued  and to be  outstanding
                                                  at the  close of  business  on
                                                  the date of issue.

                                        (ii)      The number of shares of Common
                                                  Stock at any time  outstanding
                                                  shall not  include  any shares
                                                  then  owned  or held by or for
                                                  the account of the Company.

                                        (2) In case  the  Company  shall  at any
                              time subdivide or combine the  outstanding  shares
                              of Common Stock, the Warrant Price shall forthwith
                              be  proportionately  decreased  in the case of the
                              subdivision  or  proportionately  increased in the
                              case of  combination  to the nearest one cent. Any
                              such  adjustment  shall  become  effective  at the
                              close  of   business   on  the  date   that   such
                              subdivision or combination shall become effective.

                           B. In the event that the number of outstanding shares
                  of Common Stock is increased  by a stock  dividend  payable in
                  shares of Common Stock or by a subdivision of the  outstanding
                  shares of Common Stock,  which may include a stock split, then
                  from and after the time at which the  adjusted  Warrant  Price
                  becomes  effective  pursuant to the foregoing  Subsection A of
                  this Section by reason of such  dividend or  subdivision,  the
                  number of shares  issuable  upon the  exercise of this Warrant
                  shall  be  increased  in   proportion   to  such  increase  in
                  outstanding   shares.   In  the  event   that  the  number  of
                  outstanding   shares  of  Common   Stock  is  decreased  by  a
                  combination of the outstanding  shares of Common Stock,  then,
                  from and after the time at which the  adjusted  Warrant  Price
                  becomes  effective  pursuant  to  such  Subsection  A of  this
                  Section  by reason of such  combination,  the number of shares
                  issuable  upon the exercise of this Warrant shall be decreased
                  in proportion to such decrease in outstanding shares.





                           C.  In the  event  of an  adjustment  of the  Warrant
                  Price,  the number of shares of Common Stock (or  reclassified
                  stock)  issuable  upon  exercise  of this  Warrant  after such
                  adjustment  shall  be  equal  to  the  number   determined  by
                  dividing:

                              (1)       an amount  equal to the  product  of (i)
                                        the  number of  shares  of Common  Stock
                                        issuable  upon  exercise of this Warrant
                                        immediately  prior  to such  adjustment,
                                        and (ii) the Warrant  Price  immediately
                                        prior to such adjustment, by

                              (2)       the Warrant Price immediately after such
                                        adjustment.

                           D.   In   the   case   of   any   reorganization   or
                  reclassification  of the  outstanding  shares of Common  Stock
                  (other than a change in par value, or from par value to no par
                  value,  or from no par value to par value, or as a result of a
                  subdivision   or   combination)   or  in  the   case   of  any
                  consolidation  of the Company  with,  or merger of the Company
                  with, another  corporation,  or in the case of any sale, lease
                  or conveyance of all, or  substantially  all, of the property,
                  assets, business and goodwill of the Company as an entity, the
                  holder of this Warrant  shall  thereafter  have the right upon
                  exercise  to  purchase  the kind and amount of shares of stock
                  and  other  securities  and  property   receivable  upon  such
                  reorganization,  reclassification,  consolidation,  merger  or
                  sale by a holder of the number of shares of Common Stock which
                  the holder of this Warrant would have received had all Warrant
                  Shares  issuable  upon  exercise of this  Warrant  been issued
                  immediately  prior to such  reorganization,  reclassification,
                  consolidation, merger or sale, at a price equal to the Warrant
                  Price then in effect  pertaining  to this  Warrant  (the kind,
                  amount  and price of such  stock and  other  securities  to be
                  subject to adjustment as herein provided).

                           E. In case the  Company  shall,  at any time prior to
                  the  expiration  of this  Warrant  and  prior to the  exercise
                  thereof,  dissolve,  liquidate  or  wind up its  affairs,  the
                  Warrantholder shall be entitled, upon the exercise thereof, to
                  receive, in lieu of the Warrant Shares of the Company which it
                  would have been entitled to receive,  the same kind and amount
                  of assets as would have been issued, distributed or paid to it
                  upon  such  Warrant  Shares  of the  Company,  had it been the
                  holder of record of shares of Common Stock receivable upon the
                  exercise   of  this   Warrant  on  the  record  date  for  the
                  determination   of  those   entitled   to  receive   any  such
                  liquidating   distribution.   After   any  such   dissolution,
                  liquidation   or  winding  up  which   shall   result  in  any
                  distribution  in excess of the Warrant  Price  provided for by
                  this Warrant, the Warrantholder may at its option exercise the
                  same without making payment of the aggregate Warrant Price and
                  in such case the Company shall upon the  distribution  to said
                  Warrantholder  consider that the  aggregate  Warrant Price has
                  been  paid  in  full to it and in  making  settlement  to said
                  Warrantholder,  shall  deduct from the amount  payable to such
                  Warrantholder an amount equal to the aggregate Warrant Price.

                           F. In case the  Company  shall,  at any time prior to
                  the  expiration  of this  Warrant  and  prior to the  exercise
                  thereof make a distribution of assets (other than





                  cash) or  securities of the Company to its  stockholders  (the
                  "Distribution") the Warrantholder shall be entitled,  upon the
                  exercise  thereof,  to  receive,  in  addition  to the Warrant
                  Shares it is entitled to receive,  the same kind and amount of
                  assets or securities as would have been  distributed  to it in
                  the Distribution had it been the holder of record of shares of
                  Common Stock  receivable  upon exercise of this Warrant on the
                  record date for determination of those entitled to receive the
                  Distribution.

                           G.  Irrespective  of any adjustments in the number of
                  Warrant  Shares and the Warrant Price or the number or kind of
                  shares purchasable upon exercise of this Warrant, this Warrant
                  may  continue to express the same price and number and kind of
                  shares as originally issued.

4.   OFFICER'S CERTIFICATE.  Whenever  the  number  of  Warrant  Shares  and the
Warrant Price shall be adjusted pursuant to the provisions  hereof,  the Company
shall forthwith file, at its principal  executive office a statement,  signed by
the  Chairman  of the Board,  President,  or one of the Vice  Presidents  of the
Company and by its Chief Financial Officer or one of its Treasurers or Assistant
Treasurers,  stating the adjusted  number of Warrant  Shares and the new Warrant
Price  calculated  to the nearest one  hundredth and setting forth in reasonable
detail the method of calculation  and the facts  requiring  such  adjustment and
upon which such  calculation is based.  Each  adjustment  shall remain in effect
until a subsequent  adjustment  hereunder is required.  A copy of such statement
shall be mailed to the Warrantholder.

5.   CHARGES,  TAXES AND EXPENSES. The  issuance  of  certificates  for  Warrant
Shares upon any  exercise of this Warrant  shall be made  without  charge to the
Warrantholder  for any tax or other  expense in respect to the  issuance of such
certificates,  all of which taxes and expenses shall be paid by the Company, and
such certificates shall be issued only in the name of the Warrantholder.

6.   MISCELLANEOUS.

                    (1)       The terms of this  Warrant  shall be binding  upon
                              and shall inure to the  benefit of any  successors
                              or  assigns  of the  Company  and of the holder or
                              holders  hereof and of the shares of Common  Stock
                              issued or issuable upon the exercise hereof.

                    (2)       No  holder  of this  Warrant,  as  such,  shall be
                              entitled to vote or receive dividends or be deemed
                              to  be  a  stockholder  of  the  Company  for  any
                              purpose,  nor  shall  anything  contained  in this
                              Warrant be  construed to confer upon the holder of
                              this Warrant, as such, any rights of a stockholder
                              of the  Company  or any  right  to  vote,  give or
                              withhold consent to any corporate action,  receive
                              notice   of   meetings,   receive   dividends   or
                              subscription rights, or otherwise.

                    (3)       Receipt of this Warrant by the holder hereof shall
                              constitute  acceptance  of  an  agreement  to  the
                              foregoing terms and conditions.





                    (4)       The  Warrant  and the  performance  of the parties
                              hereunder  shall be construed and  interpreted  in
                              accordance  with the laws of the State of New York
                              and the parties  hereunder  consent and agree that
                              the  State  and  Federal  Courts  which sit in the
                              State of New York and the County of New York shall
                              have  exclusive  jurisdiction  with respect to all
                              controversies and disputes arising hereunder.

                    (5)       Shares  issued upon exercise of this Warrant shall
                              be legended substantially as follows:

         "The  shares  evidenced  by this  certificate  have  not  been
         registered  under the Securities Act of 1933, as amended,  and
         must be held indefinitely unless they are transferred pursuant
         to an effective registration statement under that Act or after
         receipt of an opinion of counsel  satisfactory  to the Company
         that registration is not required."

                  IN WITNESS WHEREOF,  the Company has caused this Warrant to be
signed by its duly  authorized  officer  and its  corporate  seal to be  affixed
hereto.

Dated: November 16, 1998

                                   ADVANCED VIRAL RESEARCH CORP.



                                   BY: \s\ Shalom Hirschman
                                      -----------------------------------
                                        Shalom Hirschman, M.D., President




                                SUBSCRIPTION FORM


                    (TO BE EXECUTED BY THE REGISTERED HOLDER
                     IF HE DESIRES TO EXERCISE THE WARRANT)


         To:      ADVANCED VIRAL RESEARCH CORP.


                  The  undersigned   hereby  exercises  the  right  to  purchase
_________  shares of Common Stock,  par value $.00001 per share,  covered by the
attached  Warrant  in  accordance  with the terms and  conditions  thereof,  and
herewith makes payment of the Warrant Price for such shares in full.


                                    -------------------------------------------
                                    SIGNATURE


                                    --------------------------------------------
                                    ADDRESS

                                    --------------------------------------------



DATED:
      --------------------





                   NOTICE OF EXERCISE OF COMMON STOCK WARRANT
             PURSUANT TO NET ISSUE ("CASHLESS") EXERCISE PROVISIONS


                                                                        , 199   
                                                            ------------     ---


Advanced Viral Research Corp.        Aggregate Price of          $
a Delaware corporation               of Warrant                   --------------
200 Corporate Boulevard South
Yonkers, New York 10701              Aggregate Price Being
                                     Exercised:                  $
Attention:                                                        --------------
          --------------------       Warrant Price
                                     (per share):                $
                                     Number of Shares of          --------------
                                     Common Stock to be
                                     Issued Under this
                                     Notice:



                                CASHLESS EXERCISE


Gentlemen:

                  The undersigned,  registered holder of the Warrant to Purchase
Common Stock delivered herewith  ("Warrant")  hereby irrevocably  exercises such
Warrant for, and  purchases  thereunder,  shares of the Common Stock of ADVANCED
VIRAL RESEARCH CORP., a Delaware  corporation,  as provided  below.  Capitalized
terms used herein,  unless  otherwise  defined  herein,  shall have the meanings
given in the  Warrant.  The  portion  of the  Aggregate  Price  (as  hereinafter
defined)  to be applied  toward the  purchase of Common  Stock  pursuant to this
Notice of Exercise is $ , thereby  leaving a remainder  Aggregate Price (if any)
equal to $
        . Such exercise shall be pursuant to the net issue  exercise  provisions
of Section 1(b) of the Warrant; therefore, the holder makes no payment with this
Notice of Exercise.  The number of shares to be issued pursuant to this exercise
shall be  determined  by reference to the formula in Section 1(b) of the Warrant
which  requires  the use of the Market  Value (as defined in Section 1(d) of the
Warrant) of the Company's Common Stock on the business day immediately preceding
the day on which  this  Notice is  received  by the  Company.  To the extent the
foregoing exercise is for less than the full Aggregate Price of the Warrant, the
remainder of the Warrant  representing  a number of Shares equal to the quotient
obtained by dividing the remainder of the  Aggregate  Price by the Warrant Price
(and otherwise of like form, tenor and effect) may be exercised under Section





1(a) of the  Warrant.  For  purposes of this Notice the term  "Aggregate  Price"
means the product  obtained by multiplying  the number of shares of Common Stock
for which the Warrant is exercisable times the Warrant Price.


                                    -------------------------------------------
                                    SIGNATURE

DATE:
     --------------------           --------------------------------------------
                                    ADDRESS


                                        2




                                   ASSIGNMENT


                    (To be Executed by the Registered Holder
                     if he Desires to Transfer the Warrant)


                  FOR VALUE RECEIVED,  the undersigned hereby sells, assigns and
transfers  unto                          the right to purchase  shares of Common
Stock of ADVANCED VIRAL RESEARCH  CORP.,  evidenced by the within  Warrant,  and
does hereby irrevocably constitute and appoint                          Attorney
to transfer  the said  Warrant on the books of the  Company,  with full power of
substitution.


                                    -------------------------------------------
                                    SIGNATURE


                                    --------------------------------------------
                                    ADDRESS

DATED:
      ---------------------

IN THE PRESENCE OF:


- ---------------------------