Benzatropine mesilate (INN), benztropine mesylate, or benztropine (USAN) marketed as Cogentin, is an anticholinergicdrug principally used for the treatment of:
Benzatropine is a centrally acting anticholinergic agent resulting from the combination of the tropine portion of the atropine molecule and the benzohydryl portion of diphenhydramine. Animal studies have indicated that anticholinergic activity of benzatropine is approximately one-half that of atropine, while antihistaminic activity approaches that of pyrilamine. Its anticholinergic effects have been established as therapeutically significant in the management of parkinsonism. Benzatropine antagonises the effect of acetylcholine, decreasing the imbalance between the neurotransmitters acetylcholine and dopamine, which may improve the symptoms of early Parkinson's disease.
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Benzatropine is also a second-line drug for the treatment of Parkinson's disease. It improves tremor but not rigidity.
Benzatropine is also sometimes used for the treatment of dystonia, a rare disorder that causes abnormal muscle contraction, resulting in twisting postures of limbs, trunk, or face.
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