Aka Efexor, Elafax, Trevilor, Venlafaxina, Venlor, Ventab, Alenthus   ENLAFAX:  After reading Post #1 please see this post for suggestions about tapering Enlafax XR.   As with many psychiatric drugs, patients have had to write the book on Effexor withdrawal. Venlafaxine comes in Immediate-release (IR) form: 25mg, 37.5mg, 50mg, 75mg, 100mg tablets Extended-release form (XR): 37.5mg, 75mg, and 150mg capsules or tablets As with other psychiatric drugs: