DOW JONES NEWSWIRES 

Somaxon Pharmaceuticals Inc. (SOMX) said part of Procter & Gamble Co.'s (PG) sales force will help sell the drug developer's Silenor insomnia treatment to certain doctors.

Somaxon shares were up 33.5% at $4.50 in recent premarket trading. The stock has more than tripled this year after spiking in March when the U.S. Food and Drug Administration approved the drug for short-term and chronic insomnia in adults and the elderly.

The companies will have a combined 215 sales representatives in the U.S. pushing the drug. P&G's sales force will promote the drug to "targeted primary care and other high-prescribing physicians." Somaxon will focus on specialists.

Somaxon will pay P&G a combination of fees and royalties based upon U.S. sales. Each company is responsible for their own sales costs. The agreement runs through December 2012 and is renewable. A reduced royalty will be paid for a year after the pact expires.

Somaxon President and Chief Executive Richard W. Pascoe said the company also is excited about the potential to team up with P&G, which has first right of negotiation, for over-the-counter rights to Silenor in the future.

The president of P&G's health-care unit, Thomas M. Finn, said the move was an excellent fit with the division's current and future business interests.

Silenor is the first product on the market for Somaxon, which focuses on disorders of the central nervous system. In studies, the drug improved sleep onset and maintenance as well as prevented early-morning awakenings relative to placebo.

-By Tess Stynes, Dow Jones Newswires; 212-416-2481; Tess.Stynes@dowjones.com

 
 
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