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biperiden

n. An antiparkinsonian agent of the anticholinergic type.

Wikipedia
Biperiden

Biperiden, sold under the brandname Akineton among others, is a medication used to treat Parkinson disease. It is of the anticholinergic type. It is on the WHO Model List of Essential Medicines, the most important medications needed in a basic health system. It is available as a generic medication.