I've been taking Trihexphenodyl for 20 yrs plus. The past few months after taking a tablet I feel dizzy, feel very weird so I told my GP who said to ask my Neuologist. The neurologist suggested having a break which I did but after about 1 month I felt myself stiffening up so am back on them. I still get dizzy etc., taking only 1 per day instead of the 2/3 per day, I just don't want to feel worse but was hoping to try a different drug. Can anyone suggest anything else. It is not for my SCA but to help Dystonia, which I also have. Does anyone take this, I'de Luv to know their experience.