About the Study

Dystonia and Cerebral Palsy: A study of a medicine called Trihexyphenidyl

This study is being done for children: • Ages between 5-17 years • Diagnosed with Dystonia and Cerebral Palsy • Parents/Guardians may participate in this research study This research study is being done to learn how a child's body breaks down and responds to the medicine Trihexyphenidyl, the sides effects of this medicine and how well it works.

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Full Study Name: Trihexyphenidyl Pharmacokinetic Study