I take a beta blocker, which is suppose to better heart rate, voice trembling and sweaty hands...that sort of physical sorts. It's helping me with my anxiety, plus high blood pressure. You really don't notice the effects of the drug. I never felt any change. But recently I was thinking about how I was getting those nervous effects that you get when talking to someone...and you get sweaty hands, voice begins to tremble and break up, then I realized it must be the beta blocker Bisopro that I'm taking.