Magnus R V
J Int Med Res. 1980;8(5):343-6. doi: 10.1177/030006058000800507.
A single-blind study compared the clinical efficacy of biperiden hydrochloride (Akineton, Abbott) and benzhexol (Artane, Lederle) in the treatment of neuroleptic-induced Parkinsonism. Both drugs were highly effective and all patients responded favourably to medication. No significant difference was observed between the two treatment groups when individual symptoms were examined.