I took Klonopin, Ativan, Valium for many years and am now off of them because the mental health place I go to refused to prescribe them any longer for anyone. One of the reasons was memory loss. It was difficult to withdraw and they didn't let me do it properly and I felt pretty bad for a few mos. But then I felt better. Here is some information on Valium or diazepam:


Diazepam | Side Effects, Dosage, Uses & More