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Medical Term:


Pronunciation: fi'so-stig'men


An alkaloid of physostigma; it is a reversible inhibitor of the cholinesterases and prevents destruction of acetylcholine; used as a cholinergic agent, and experimentally to enhance the action of acetylcholine at any of its sites of liberation.

Synonym(s): eserine

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.