UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                               ------------------
                                    FORM 6-K

                        REPORT OF FOREIGN PRIVATE ISSUER
                        PURSUANT TO RULE 13a-16 OR 15d-16
                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                               ------------------
                            For the month of May 2004

                        Commission File Number: 001-31368

                                SANOFI-SYNTHELABO
                 (Translation of registrant's name into English)

                   174, avenue de France, 75013 Paris, FRANCE
                    (Address of principal executive offices)

         Indicate by check mark whether the registrant files or will file annual
reports under cover Form 20-F or Form 40-F.

                    Form 20-F  [X]               Form 40-F [ ]

         Indicate by check mark if the registrant is submitting the Form 6-K in
paper as permitted by Regulation S-T Rule 101(b)(1):
                                                    -------

         Indicate by check mark if the registrant is submitting the Form 6-K in
paper as permitted by Regulation S-T Rule 101(b)(7):
                                                    -------

         Indicate by check mark whether the registrant by furnishing the
information contained in this Form is also thereby furnishing the information to
the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of
1934.

                      Yes  [ ]                        No [X]

         If "Yes" marked, indicate below the file number assigned to the
registrant in connection with Rule 12g3-2(b):  82-________


         This Report on Form 6-K shall be deemed to be incorporated by reference
into Sanofi-Synthelabo's Registration Statement on Form F-4 (Registration No.
333-112314), as declared effective on April 9, 2004 by the United States
Securities Exchange Commission, and the related prospectus filed on April 12,
2004 pursuant to Rule 424(b) under the United States Securities Act of 1933, as
amended, and shall be part thereof from the date on which this Report is filed,
to the extent not superseded by documents or reports subsequently filed or
furnished.






                                                        [Sanofi-Synthelabo Logo]


 Investor Relations

                                                              Paris, May 4, 2004




        POSTPONEMENT OF SANOFI-SYNTHELABO GENERAL MEETING OF MAY 24, 2004




The Board of Directors of Sanofi-Synthelabo, at its meeting of May 3, 2004,
decided to postpone the Combined Annual General Meeting of shareholders,
originally scheduled for May 24, 2004 (as announced in the "BALO" on April 19,
2004). The new date must be at least five trading days before the closing date
of Sanofi-Synthelabo's offer for Aventis, which will be set by the Autorite des
Marches Financiers (AMF).

This postponement is pursuant to the agreement reached with Aventis on April 25,
2004 relating to Sanofi-Synthelabo's offer for Aventis. A future meeting of the
Board of Directors will set a new date and agenda for the General Meeting, which
will be held to vote not only on the agenda for the Combined Annual General
Meeting, but also on the resolutions relating to the offer, including the
capital increase required for the shares to be issued in consideration for the
offer.

This postponement does not affect the proposed arrangements for the payment of
the 2003 dividend to Sanofi-Synthelabo shareholders: payment of an interim
dividend of 0.97 euros on May 5, 2004, with the balance to be paid on settlement
of the offer (the total amount of dividend proposed to the General Meeting of
Sanofi-Synthelabo shareholders remaining unchanged at 1.02 euros).


In accordance with article 7 of the COB rule no. 2002-04, this document was
transmitted to the Autorite des marches financiers (AMF) before its publication.

IMPORTANT INFORMATION: In connection with the proposed acquisition of Aventis,
Sanofi-Synthelabo has filed a registration statement on Form F-4 (File no.
333-112314) , including a prospectus/offer to exchange, and will file additional
documents with the United States Securities and Exchange Commission (SEC)
INVESTORS ARE URGED TO READ THE REGISTRATION STATEMENT, INCLUDING THE
PROSPECTUS/OFFER TO EXCHANGE, AND ANY OTHER RELEVANT DOCUMENTS FILED WITH THE
SEC, INCLUDING ALL AMENDMENTS AND SUPPLEMENTS (INCLUDING ANY SUPPLEMENT RELATING
TO ITS REVISED OFFERS), BECAUSE THEY CONTAIN IMPORTANT INFORMATION. Free copies
of the registration statement, as well as other relevant documents filed with
the SEC, may be obtained at the SEC's web site at www.sec.gov. The
prospectus/offer to exchange and other transaction-related documents are being
mailed to Aventis securityholders eligible to participate in the U.S. offer and
additional copies may be obtained for free from MacKenzie Partners, Inc., the
information agent for the U.S. offer, at the following address: 105, Madison
Avenue, New York, New York 10016; telephone 1-(212) 929-5500 (call collect) or
1-(800) 322-2885 (toll-free call); e-mail proxy@mackenziepartners.com. In
connection with its revised offer, Sanofi-Synthelabo intends to distribute a
supplement to the prospectus/offer to exchange as soon as practicable.

In France, holders of Aventis securities are requested, with respect to the
offer, to refer to the prospectus (NOTE D'INFORMATION), which has been granted
VISA number 04-0090 by the AMF and which is available on the website of the AMF
(www.amf-france.org) and without cost from: BNP Paribas Securities Services,
GIS-Emetteurs, Service Logistique, Les Collines de l'Arche, 75450 Paris Cedex 9
and to all other appropriate documents relating to the French offer filed with
the AMF.



The public offer to holders of Aventis ordinary shares located in Germany (the
"German Offer") is being made in accordance with applicable German law and
pursuant to an offer document/sales prospectus, which is available free of
charge at BNP Paribas Securities Services, Gruneburgweg 14, D-60322 Frankfurt am
Main (Fax: 069 - 152 05 277) and on the website of the Company
(www.sanofi-synthelabo.com). Any decision to tender Aventis ordinary shares in
exchange for Sanofi-Synthelabo ordinary shares under the German Offer must be
taken exclusively with regard to the terms and conditions of the German Offer,
as well as with regard to the information included in the offer document/sales
prospectus, including any amendments thereto, issued in Germany.

The French Offer, the U.S. Offer and the German Offer are being made on
substantially the same terms and completion of these offers is subject to the
same conditions. It is intended that the three offers will expire at the same
time.

Investors and security holders may obtain a free copy of the Form 20-F filed
with the SEC on April 2, 2004 and any other documents filed by Sanofi-Synthelabo
with the SEC at www.sec.gov as well as of the Reference Document filed with the
AMF on April 2, 2004 (No. 04-0391) at www.amf-france.org or directly from
Sanofi-Synthelabo on our web site at: www.sanofi-synthelabo.com.




INVESTOR RELATIONS DEPARTMENT
Phillipe Goupit         Director of Investor Relations
Arnaud Delepine         Investor Relations Europe
Sanjay Gupta            Investor Relations US
Anne d'Halluin-Sulzer   Investor Relations

CONTACTS:
E-mail: investor-relations@sanofi-synthelabo.com
Europe                          US
Tel: + 33 1 53 77 45 45         Tel.:  +1 212 551 42 93
Fax: + 33 1 53 77 42 96         Fax:   +1 212 551 49 92







                                   SIGNATURES

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


Dated: May 4, 2004                          SANOFI-SYNTHELABO


                                            By:   /s/  Marie-Helene Laimay
                                              ----------------------------------
                                              Name:    Marie-Helene Laimay
                                              Title:   Senior Vice President and
                                                       Chief Financial Officer