Biperiden

Biperiden, sold under the brand name Akineton among others, is a medication used to treat Parkinson disease and certain drug-induced movement disorders.[1] It is not recommended for tardive dyskinesias.[2] It is taken by mouth, injection into a vein, or muscle.[1][2] Common side effects include blurred vision, dry mouth, sleepiness, constipation, and confusion.[1] It should not be used in people with a bowel obstr... [wikipedia]