physostigmine

physostigmine /phy·so·stig·mine/ (-stig´mēn) a cholinergic alkaloid usually obtained from dried ripe seed of Physostigma venenosum (Calabar bean), used as a topical miotic and to reverse the central nervous system effects of an overdosage of anticholinergic drugs; used in the form of the salicylate and sulfate salts.

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physostigmine [fi″zo-stig´mēn]

a cholinergic alkaloid having anticholinesterase activity, obtained from the dried ripe seed (Calabar bean) of Physostigma venenosum; used topically to produce miosis and to decrease intraocular pressure in glaucoma. It may also be applied parenterally to reverse the central nervous system effects produced by overdosage of anticholinergic drugs.

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physostigmine (fī´sōstig´mēn),

n a cholinergic actylcholinesterase inhibitor prescribed in the treatment of some forms of glaucoma and to reverse effects of neuromuscular blocking agents.

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physostigmine

an alkaloid usually obtained from the dried ripe seed of Physostigma venenosum; used as a topical miotic in the form of the base and of the salicylate and sulfate salts.

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physostigmine challenge test

a test for the diagnosis of cataplexy; after increasing doses of physostigmine, affected dogs show a dose-related severity of reactions when offered food.

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physostigmine 

A reversible anticholinesterase drug used as a parasympathomimetic which, when used in the eye constricts the pupil. It may be used in solution of 0.25-1% or ointment 0.25-0.50% in the treatment of glaucoma, but because of its side-effects its usage is rare nowadays. It is sometimes combined with pilocarpine. Syn. eserine. See miotics; neostigmine; parasympathomimetic drug.

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physostigmine

A reversible antiacetylcholinesterase, used in Pts with Sx of an anticholinergic crisis Neurology Memory drug Physostigmine may improve working memory by ↑ efficiency and ↓ effort. See Working memory.