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 12, 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  11,  2004,  18.00 hours (CET)  Sanofi-Aventis's
mandatory offer for the shares in Hoechst  Aktiengesellschaft  has been accepted
for  169,352  shares in Hoechst  Aktiengesellschaft,  representing  0.03% of the
share capital and the voting rights of Hoechst Aktiengesellschaft.

                                  EXHIBIT LIST


Exhibit No.                       Description
-----------                       -----------                
Exhibit 99.1       Notice, dated November 11, 2004, announcing number of
                   Hoechst shares tendered into mandatory offer by
                   Sanofi-Aventis to the shareholders of Hoechst AG, as of
                   November 11, 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 15, 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 11, 2004, announcing number of
                   Hoechst shares tendered into mandatory offer by
                   Sanofi-Aventis to the shareholders of Hoechst AG, as of
                   November 11, 2004 at 18:00 hours (CET).