Wyeth’s Pristiq (corr.)
Executive Summary
Wyeth's antidepressant Pristiq (desvenlafaxine) is a racemic mixture and the succinate salt of a metabolite of venlafaxine (Wyeth's Effexor), not a single enantiomer as stated in the "The Pink Sheet" Jan. 15 (1"The Pink Sheet" Jan. 15, 2007, p. 26). FDA is considering the Effexor XR follow-on to be a new molecular entity, Wyeth says...