FOSTER CITY,
Calif. (AP) — Gilead Sciences
Inc. said late Friday afternoon it received a federal subpoena tied to a
criminal and civil investigation into the making of several company products.

The Foster City,
Calif., company said the U.S.
Attorney’s Office for the Northern District of California asked for documents
related to the manufacturing, quality and distribution practices for HIV
treatments Atripla, Emtriva, Truvada and Viread; the chronic hepatitis B
treatment Hepsera; and the hypertension treatment Letairis.

Gilead said in a brief
statement it is cooperating with the investigation.