Trihexyphenidyl
"Life Saver for my Spasmodic Torticollis/Cervical Dystonia ! After about 2 weeks on this medication, I was able to hold my head upright again! I haven't seen many positive reviews on this med for the relief of this condition, so I wanted to let anyone suffering with this, to give this medicine a shot! I take the liquid form of this med, so I do not know if this perhaps makes any difference.  I had to abruptly stop taking this a few years ago when I was hospitalized for another condition, and almost immediately, my symptoms reappeared. It was awful! But, within a week of resuming medication, my head returned to normal position. I would HIGHLY recommend this medication.  I do not have any major side effects from this medication either.  So grateful my Neurologist prescribed it!"