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 November 2004

                        Commission File Number: 001-31368

                                 SANOFI-AVENTIS
                 (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-________





         On   November   26,   2004,    Sanofi-Aventis    (formerly   known   as
Sanofi-Synthelabo)    published    the   attached    notice   on   its   website
(www.sanofi-aventis.com),  announcing  that as at  Thursday,  November 25, 2004,
18.00 hours  (CET)  Sanofi-Aventis's  mandatory  offer for the shares in Hoechst
Aktiengesellschaft   has  been   accepted   for   222,331   shares  in   Hoechst
Aktiengesellschaft,  representing  0.04% of the  share  capital  and the  voting
rights of Hoechst Aktiengesellschaft.

                                  EXHIBIT LIST

Exhibit No.                                Description
----------                                 -----------

Exhibit 99.1       Notice, dated November 25, 2004, announcing number of Hoechst
                   shares tendered into mandatory offer by Sanofi-Aventis to the
                   shareholders of Hoechst AG, as of November 25, 2004 at 18:00
                   hours (CET).







                                   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: November 26, 2004                     SANOFI-AVENTIS


                                             By:    /s/ Jean-Claude Leroy
                                                --------------------------------
                                                Name:   Jean-Claude Leroy
                                                Title:  Senior Vice President &
                                                        Chief Financial Officer





                                  EXHIBIT INDEX

Exhibit No.                               Description
-----------                               -----------

Exhibit 99.1       Notice, dated November 25, 2004, announcing number of Hoechst
                   shares tendered into mandatory offer by Sanofi-Aventis to the
                   shareholders of Hoechst AG, as of November 25, 2004 at 18:00
                   hours (CET).