Due to a "pharmacy error" I was given klonopin instead of ativan when I first filled my prescription. When I went back for my refill they filled it with Ativan which is what it was supposed to be in the first place. I never even looked at the bottle when I got the first Rx which is my fault and will always look from now on. I am wondering if the ativan will work as well as the klonopin has for me. I was given it to help me sleep at night because of my anxiety I can't seem to turn my brain off. Does anyone know how this ativan will work? Better or worse? Will I still be able to sleep? I am so ill at the pharmacy right now I could die!!!