is desvenlafaxine better than venlafaxine?
Venlafaxine XR relies on CYP2D6 for conversion to desvenlafaxine while desvenlafaxine has no significant metabolism by CYP2D6 at recommended doses. Both venlafaxine XR and desvenlafaxine have limited clinically significant drug interactions. The most striking difference between the two products is cost.