Chemicals and Drugs

Physostigmine

A cholinesterase inhibitor that is rapidly absorbed through membranes. It can be applied topically to the conjunctiva. It also can cross the blood-brain barrier and is used when central nervous system effects are desired, as in the treatment of severe anticholinergic toxicity.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A cholinesterase inhibitor that is rapidly absorbed through membranes. It can be applied topically to the conjunctiva. It also can cross the blood-brain barrier and is used when central nervous system effects are desired, as in the treatment of severe anticholinergic toxicity.

Chemical Identity

Chemical Information

Molecular Formula
C15H21N3O2
Molecular Weight
275.35 g/mol
CAS Registry No.
57-47-6
IUPAC Name
[(3aR,8bS)-3,4,8b-trimethyl-2,3a-dihydro-1H-pyrrolo[2,3-b]indol-7-yl] N-methylcarbamate
InChIKey
PIJVFDBKTWXHHD-HIFRSBDPSA-N
SMILES
C[C@@]12CCN([C@@H]1N(C3=C2C=C(C=C3)OC(=O)NC)C)C
MeSH Unique ID
D010830
Source
PubChem CID 5983

MeSH Record

Classification

Related Concepts

Knowledge Graph

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Drug Class

Pharmacological Action

MeSH Record

Synonyms

1 entry terms
  • Eserine

MeSH Record

Aspects Covered

25 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analogs & derivatives, analysis, antagonists & inhibitors, blood, cerebrospinal fluid, chemical synthesis, chemistry, classification, economics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, urine.

MeSH Hierarchy

Tree Numbers

MeSH Record

NLM Classification

QV 124

AMA Style

References

  1. National Library of Medicine. Physostigmine. Medical Subject Headings (MeSH). 2026. Unique ID D010830. http://id.nlm.nih.gov/mesh/2026/D010830
  2. Physostigmine. In: Wikipedia. https://en.wikipedia.org/wiki/Physostigmine
  3. Physostigmine. In: Wikidata. https://www.wikidata.org/wiki/Q410595
  4. Physostigmine. In: PubChem Compound. CID 5983. https://pubchem.ncbi.nlm.nih.gov/compound/5983