NAME FUNCTION SALES*

Gonal-F A recombinant hormone used to treat ovulation $301 disorders that impair fertility. Also helps men produce hormones needed for sperm production.

Rebif A beta interferon drug that delays the progress of 269 multiple sclerosis and relieves its symptoms. The leading treatment for MS outside the U.S., it is a potential rival to Biogen's drug, Avonex.

Serostim A recombinant human growth hormone that reverses 98 the metabolic upset linked to AIDS-related wasting.

Saizen A treatment for growth hormone deficiency in child- 78 ren and adults.

* All sales, in millions, are for the nine months ended Sept. 30, 2001

Data: Company reports, Merrill Lynch & Co.

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