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1 Mental Hospital of the Brothers of Charity, Mortsel, Antwerp, Belgium; Department of Clinical Pharmacology of Janssen Pharmaceutica, Beerse, Belgium.
A double-blind crossover trial with a 16-week follow-up was performed to objectively assess the therapeutic efficacy, dosage, and safety of dexbenzetimide (R 16470), a new antiparkinsonian agent. Sixteen male psychiatric patients with neuroleptie-induced extrapyramidal symptoms were included in the study. The optimum dose of dexbenzetimide was a single daily oral administration of 0.75 to 1.5 mg. Dexbenzetimide was significantly superior to placebo in reducing the incidence of neuroleptic-induced parkinsonian symptoms.
Blood examinations showed no evidence of toxic effects.
Dexbenzetimide compared favorably with the known anitparkinsonian agents by its 24-hour duration of action and by its beneficial effects on the mood and alertness.
Note:
We should like to thank Miss V. Schuermans for her help in the preparation of the manuscript.
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