Venlafaxine is the generic form of the brand-name medication Effexor. It is an antidepressant used to treat depression and certain anxiety disorders by increasing serotonin and norepinephrine levels in the brain.

Founded in 1907, Alembic Pharmaceuticals distributes about 35 generics drugs in the U.S. It is a subsidiary of Alembic Pharmaceuticals Ltd., the oldest pharmaceutical company in India. Alembic has 6 manufacturing sites in India.