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 August 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 post-effectively amended and declared effective on May 13, 2004 by the United States Securities Exchange Commission, and the related prospectus, dated April 9, 2004, and the prospectus supplement, dated May 27, 2004, each filed 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Act of 1933, as amended, and shall be part thereof from the date on which this Report is filed, to the extent not superseded by documents or reports subsequently filed or furnished.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] [GRAPHIC] Investor Relations Paris, August 19th, 2004 Dear Madam, Dear Sir, A CONFERENCE CALL for financial analysts, institutional investors and journalists will be organized on TUESDAY, AUGUST 31ST, 2004 AT 3.00 P.M. (Paris time) to present 2004 HALF-YEAR RESULTS, and INTERIM CLINICAL DATA (RIO-EUROPE ONE-YEAR DATA) OF ACOMPLIA (TM) IN OBESITY. This conference will be held in English. In order to participate in the conference call, the following numbers are to be dialed 10 minutes before it starts : FRANCE : 00 33 (0) 1 70 70 60 60 CODE : 902488 UNITED KINGDOM : 44 (0) 20 7784 10 04 CODE : 902488 USA : 1 718 354 11 52 CODE : 902488 The slides will be available on our website (www.sanofi-synthelabo.com) on Tuesday, August 31st from 10:00 a.m. This conference will be broadcast live on our website No recorded version will be archived for this conference. Yours sincerely, Philippe Goupit INVESTOR RELATIONS DEPARTMENT Philippe Goupit Director of Investor Relations Arnaud Delepine Investor Relations Europe Sanjay Gupta Investor Relations US Anne d'Halluin-Sulzer Investor Relations Loic Gonnet Investor Relations CONTACTS: E-mail: investor-relations@sanofi-synthelabo.com Europe US Tel: + 33 1 53 77 45 45 Tel.: + 1 212 551 40 18 Fax: + 33 1 53 77 42 96 Fax: + 1 646 487 40 18 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: August 19, 2004 SANOFI-SYNTHELABO By: /s/ Marie-Helene Laimay ------------------------------------- Name: Marie-Helene Laimay Title: Senior Vice President and Chief Financial Officer