42-56%; the extended-release (XR) formulation has a slower release but similar bioavailability to immediate-release formulations Legal status Prescription only (Rx) Chemical Name Venlafaxine XR Elimination half-life 5–11 hours (Venlafaxine), 11–13 hours (active metabolite, desvenlafaxine) ...
So I have been on Effexor XR for 12 years. I just married and the past four years of my life I have felt stable enough to come of the drugs. I have been slowly coming off Effexor for three years now. To those of you that think time makes a difference, it doesn't! Everytime I...