AGREEMENT
CUSIP No. |
834453 10 2 |
Exhibit 99.1 |
Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned
hereby agree that only one statement containing the information required by Schedule 13G need be
filed with respect to the ownership by each of the undersigned of the shares of Common Stock of
Somaxon Pharmaceuticals, Inc.
Dated: February 10, 2010
PROSPECT VENTURE PARTNERS III, L.P.
By: Prospect Management Co. III, L.L.C.
Its: General Partner
Its: General Partner
| /s/ Xxxx Xxxxxxxx | ||||
| Xxxx Xxxxxxxx | ||||
| Attorney-in-Fact | ||||
PROSPECT MANAGEMENT CO. III, L.L.C.
| /s/ Xxxx Xxxxxxxx | ||||
| Xxxx Xxxxxxxx | ||||
| Attorney-in-Fact | ||||
