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Trihexyphenidyl
Essential medicine status
General description
Trihexyphenidyl is an anticholinergic medicine used in the treatment of Parkinson disease and drug-induced extrapyramidal disorders.
INN
Trihexyphenidyl
ATC codes
Medicine type
Chemical agent
EML status history
First added in 1977 (TRS 615) for Parkinson disease
Removed in 1982 (TRS 685) for Parkinson disease
Changed in 2021 for Parkinson disease
Therapeutic equivalent for
Recommendations
Section
Antiparkinsonism medicines
  • Oral > Solid: 2 mg (hydrochloride); 5 mg (hydrochloride)