SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                    ________

                                    FORM 6-K

                        REPORT OF FOREIGN PRIVATE ISSUER
                      PURSUANT TO RULE 13A-16 OR 15D-16 OF
                      THE SECURITIES EXCHANGE ACT OF 1934

                         For the month of October, 2004

                                  Serono S.A.
                              -------------------
                              (Registrant's Name)

                            15 bis, Chemin des Mines
                                Case Postale 54
                                CH-1211 Geneva 20
                                  Switzerland
                    ----------------------------------------
                    (Address of Principal Executive Offices)

                                    1-15096
                              ---------------------
                              (Commission File No.)

     (Indicate  by  check  mark whether the registrant files or will file annual
reports  under  cover  of  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"  is  marked,  indicate  below  the  file  number assigned to the
registrant  in  connection  with  Rule  12g3-2(b):  82-______)



                                                                        S serono


MEDIA RELEASE

FOR IMMEDIATE RELEASE
-----------------------

      FDA APPROVES SERONO'S LUVERIS(R) FOR CONCOMITANT USE WITH GONAL-F(R)

      APPROVAL EXPANDS SERONO'S RECOMBINANT PORTFOLIO IN THE UNITED STATES

GENEVA,  SWITZERLAND AND ROCKLAND, MA, OCTOBER 15, 2004 - SERONO (VIRT-X SEO AND
NYSE:  SRA)  -  Serono  announced today that the US Food and Drug Administration
(FDA)  has approved Luveris(R) (lutropin alfa for injection) for concomitant use
with  Gonal-f(R)  (follitropin alfa for injection) for stimulation of follicular
development  in  infertile hypogonadotropic hypogonadal (HH) women with profound
LH  deficiency  (LH  <  1.2  IU/L).

HH  is  a  rare  endocrine  deficiency.  Women with HH are unable to produce the
hormones  needed for full development of follicles in the ovaries, ovulation and
growth  of  the  lining  of  the  uterus sufficient to support implantation of a
fertilized  egg  and  early  pregnancy.

Luveris(R)  is the first and only approved recombinant human form of luteinizing
hormone  (LH), a naturally occurring fertility hormone.  The Luveris(R) approval
makes  Serono  the  only  company to offer three recombinant fertility hormones,
part  of  its  long-term  global  strategy  to  develop a 100% recombinant human
gonadotropin  portfolio.  By  the  end  of  this  year,  Serono  will complete a
systematic  commercial  phase out of its older-generation urinary products, with
the  exception  of  Japan.

"The  Luveris(R)  approval is a result of Serono's strong dedication to research
and  development  of  products in reproductive health," said Bharat Tewarie, MD,
Executive  Vice President, Reproductive Health, Serono, Inc.  "We recognized the
additional  endocrine needs of this special population of patients and developed
recombinant  human  LH specifically for them as part of our continued commitment
to  advancing infertility treatment."  Data on Luveris(R) are being presented at
the  60th  Annual  Meeting  of the American Society for Reproductive Medicine in
Philadelphia  later this month.  For patients and healthcare providers who would
like additional information on Luveris(R) and other Serono products, a toll-free
educational  service  called  Fertility  LifeLines(TM)  (1-866-538-7879)  is
available.

"Luveris(R), in conjunction with Gonal-f(R), helps individualize treatment for a
special  population  of  infertile  patients," said Zev Rosenwaks, MD, Director,
Center for Reproductive Medicine and Infertility at New York Weill Cornell.  "It
provides  an  option  for  women who specifically do not produce or secrete LH."

Luveris(R)  addresses  an  unmet  medical need and has also received Orphan Drug
designation from the FDA Office of Orphan Products Development.  It is currently
approved  in  over  60  countries worldwide, including countries in the European
Union,  Asia,  Latin  America  and  Australia.


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ADDITIONAL INFORMATION
Side  effects may occur with the use of infertility drugs and, therefore, should
only  be  prescribed  by physicians who are thoroughly familiar with infertility
problems and their management.  Ovarian hyperstimulation syndrome (OHSS) with or
without  vascular  and  pulmonary  complications  can  occur  with  the  use  of
infertility  drugs.  Reports  of  multiple  births  have  been  associated  with
gonadotropin treatments.  The most common side effects in women using Luveris(R)
include  headache,  abdominal pain, nausea, OHSS, breast pain, and ovarian cyst.
Please  see  full  prescribing  information  for  product  details.


ABOUT SERONO, INC. AND FERTILITY
Serono,  Inc.,  a  subsidiary  of  Serono S.A., is a leader in fertility health,
dedicated  to  developing patient-friendly, innovative products that help people
build  families.  It  is the only company to offer a full portfolio of fertility
medications  for  every stage of the reproductive cycle and recombinant versions
of  three  hormones  used  in  the treatment of infertility, including the newly
approved Gonal-f(R) RFF Pen (follitropin alfa injection).  For more information,
please  contact  Fertility  LifeLines(TM),  a toll-free educational service that
offers  customized  information  and  support  to  people  with fertility health
concerns,  available  at  1-866-LETS-TRY  (1-866-538-7879).


ABOUT  SERONO  S.A.
Serono  is  a  global  biotechnology leader. The Company has eight biotechnology
products,  Rebif(R)  (interferon  beta-1a),  Gonal-f(R)  (follitropin  alfa  for
injection),  Luveris(R)  (lutropin  alfa for injection), Ovidrel(R)/Ovitrelle(R)
(choriogonadotropin  alfa  injection), Serostim(R) [somatropin (rDNA origin) for
injection],  Saizen(R)  [somatropin  (rDNA  origin) for injection], Zorbtive(TM)
[somatropin  (rDNA  origin)  for  injection]  and  Raptiva(R)  (efalizumab).  In
addition  to  being  the  world leader in reproductive health, Serono has strong
market  positions  in  neurology, metabolism and growth and has recently entered
the psoriasis area. The Company's research programs are focused on growing these
businesses  and  on  establishing  new  therapeutic  areas. Currently, there are
approximately  30  ongoing  development  projects.

In  2003,  Serono  achieved  worldwide revenues of US$2,018.6 million, and a net
income  of  US$390.0 million, making it the third largest biotech company in the
world. Its products are sold in over 90 countries. Bearer shares of Serono S.A.,
the  holding company, are traded on the virt-x (SEO) and its American Depositary
Shares  are  traded  on  the  New  York  Stock  Exchange  (SRA).


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Some  of  the  statements  in  this  press  release  are  forward  looking. Such
statements  are inherently subject to known and unknown risks, uncertainties and
other  factors  that  may  cause  actual results, performance or achievements of
Serono  S.A.  and  affiliates  to be materially different from those expected or
anticipated  in  the  forward-looking statements. Forward-looking statements are
based on Serono's current expectations and assumptions, which may be affected by
a  number  of  factors, including those discussed in this press release and more
fully  described  in  Serono's  Annual  Report  on Form 20-F filed with the U.S.
Securities  and Exchange Commission on March 25, 2004. These factors include any
failure  or  delay  in  Serono's ability to develop new products, any failure to
receive  anticipated  regulatory  approvals,  any  problems  in  commercializing
current  products  as  a  result of competition or other factors, our ability to
obtain  reimbursement  coverage  for  our  products,  and government regulations
limiting  our  ability  to  sell  our  products. Serono has no responsibility to
update the forward-looking statements contained in this press release to reflect
events  or  circumstances  occurring  after  the  date  of  this  press release.

Package  inserts  for  Serono's  US  marketed  products  are  available  at
www.seronousa.com  or  by  calling  1-888-275-7376.
             ----
.
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FOR MORE INFORMATION, PLEASE CONTACT:
SERONO, INC., ROCKLAND, MA

MEDIA RELATIONS:
Renee Connolly                         INVESTOR RELATIONS:
Tel. +1 781 681 2340                   Susan Ince
Fax: +1 781 681 2935                   Tel. +1 781 681 2552
www.seronousa.com                      Fax: +1 781 681 2912
--------------------


SERONO S.A.
GENEVA, SWITZERLAND:

MEDIA RELATIONS:
Tel. +41-22 739 36 00                  INVESTOR RELATIONS:
Fax: +41-22-739 30 85                  Tel. +41-22 739 36 01
www.serono.com                         Fax: +41-22-739 30 22
---------------------                  Reuters: SEOZ.VX / SRA.N
                                       Bloomberg: SEO VX / SRA US


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                                   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.



                                   SERONO S.A.
                                   a Swiss corporation
                                   (Registrant)



October 15, 2004                   By: /s/ Francois Naef
                                       --------------------
                                   Name: Francois Naef
                                   Title: Secretary