Filed by Sanofi-Aventis
                                  Pursuant to Rule 165 and Rule 425(a) under the
                                           United States Securities Act of 1933,
                                                                      as amended

                                                        Subject Company: Aventis
                                                   Commission File No. 001-10378
                                                        Date: September 16, 2004


         On  September  16,  2004,  Sanofi-Aventis  issued the  following  press
release.

         In  connection  with its  acquisition  of Aventis,  Sanofi-Aventis  has
announced that it is studying the  feasibility of merging  Aventis with and into
Sanofi-Aventis,  with Sanofi-Aventis continuing as the surviving corporation. In
connection with any merger of Aventis into  Sanofi-Aventis,  Sanofi-Aventis will
file a post-effective  amendment to its registration statement on Form F-4 (File
no.  333-112314),  which will include a prospectus  relating to the merger,  and
will file  additional  documents  with the SEC.  INVESTORS ARE URGED TO READ THE
REGISTRATION  STATEMENT,  INCLUDING  ANY  PRELIMINARY  PROSPECTUS  OR DEFINITIVE
PROSPECTUS  (WHEN  AVAILABLE)  RELATING  TO THE MERGER,  AND ANY OTHER  RELEVANT
DOCUMENTS FILED WITH THE SEC, INCLUDING ALL AMENDMENTS AND SUPPLEMENTS,  BECAUSE
THEY  WILL  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.  At the  appropriate  time,
Sanofi-Aventis  will provide  investors  with  information  on how to obtain any
merger-related documents for free from Sanofi-Aventis or from its duly appointed
agents.



                                     * * * *



                             [SANOFI-AVENTIS LOGO]

                                                       Paris, September 16, 2004


                         THE SANOFI-AVENTIS GROUP THANKS
                        ITS TEAM MEMBERS AND SHAREHOLDERS
                      AND LAUNCHES ITS NEW VISUAL IDENTITY


THE  SANOFI-AVENTIS  GROUP  launched an  advertising  campaign  today in France,
Germany and internationally to thank its team members and shareholders for their
help in the creation of the world's 3rd largest pharmaceutical group.

 << THANK YOU TO THE 100 000 TEAM MEMBERS AND SHAREHOLDERS WHO HELPED CREATE THE
                3RD LARGEST PHARMACEUTICAL COMPANY IN THE WORLD"

The campaign also publicly reveals the new visual identity of the new Group, its
logo, which will symbolise this new human endeavour around the world.

The new logo brings to mind the  overriding  goal that each and every  member of
the Group  shares:  improving  health.  Graphically,  the logo  block  shows our
willingness to move forward together with a shared vision of the profession that
unites us. It places all humanity, each and every individual,  at the very heart
of our vocation and commitments.

This logo consists of a symbol, a logo block, and a signature.
        -    The symbol speaks to the heart of mankind and expresses solidarity.
        -    The perfectly balanced, all-embracing curved line underscores the
             typo block of the sanofi-aventis name and symbolises people joining
             together. Its colour and rounded shape express humanistic values as
             well as the environment of scientific expertise in which we live.
        -    Finally,  the  signature, << BECAUSE HEALTH MATTERS >>  reminds
             all of us of our vocation and our  commitment  to enable the
             greatest number of people to gain access to medicines.

Yesterday,  on  September  15,  2004,  the new visual  identity was launched and
presented to all the 100,000 team members of the sanofi-aventis Group around the
world. On every site, internal meetings were organised to reveal the logo to all
team members. At the corporate Headquarters, the internal meeting was chaired by
Jean-Francois DEHECQ.







        Senior Vice President, Corporate Communications: Nicole Cranois
               - Vice President, Media Relations: Jean-Marc Podvin
               Tel: + 33 1.53.77.42.23 - Fax: + 33 1.53.77.42.65
         - 174, avenue de France - 75013 Paris - www.sanofi-aventis.com



                     [PRESS RELEASE LOGO LOCATED ON RIGHT-HAND SIDE OF DOCUMENT]


                             [SANOFI-AVENTIS LOGO]


Further to the birth of the sanofi-aventis  Group on August 20, 2004, and to the
announcement  in  early  September  of the  appointment  of a  hundred  managers
throughout  the world,  a new  milestone  has been  reached  in the  integration
process of the new Group.

The  sanofi-aventis  Group is the world's 3rd  largest  pharmaceutical  company,
ranking  number  1  in  Europe.   Backed  by  a  world-class  R&D  organisation,
sanofi-aventis is developing leading positions in seven major therapeutic areas:
cardiovascular disease, thrombosis,  oncology, diabetes, central nervous system,
internal medicine, vaccines.


Important Information
---------------------
In connection with its acquisition of Aventis, Sanofi-Aventis has announced that
it is studying the feasibility of merging Aventis with and into  Sanofi-Aventis,
with Sanofi-Aventis continuing as the surviving corporation.  In connection with
any  merger  of  Aventis  into   Sanofi-Aventis,   Sanofi-Aventis  will  file  a
post-effective  amendment  to its  registration  statement on Form F-4 (File no.
333-112314),  which will include a prospectus  relating to the merger,  and will
file  additional  documents  with  the  SEC.  INVESTORS  ARE  URGED  TO READ THE
REGISTRATION  STATEMENT,  INCLUDING  ANY  PRELIMINARY  PROSPECTUS  OR DEFINITIVE
PROSPECTUS  (WHEN  AVAILABLE)  RELATING  TO THE MERGER,  AND ANY OTHER  RELEVANT
DOCUMENTS FILED WITH THE SEC, INCLUDING ALL AMENDMENTS AND SUPPLEMENTS,  BECAUSE
THEY  WILL  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.  At the  appropriate  time,
Sanofi-Aventis  will provide  investors  with  information  on how to obtain any
merger-related documents for free from Sanofi-Aventis or from its duly appointed
agents.





         Senior Vice President, Corporate Communications: Nicole Cranois
               - Vice President, Media Relations: Jean-Marc Podvin
                Tel: + 33 1.53.77.42.23 - Fax: + 33 1.53.77.42.65
         - 174, avenue de France - 75013 Paris - www.sanofi-aventis.com


                     [PRESS RELEASE LOGO LOCATED ON RIGHT-HAND SIDE OF DOCUMENT]