Chemicals and Drugs

Potassium Channel Blockers

A class of drugs that act by inhibition of potassium efflux through cell membranes. Blockade of potassium channels prolongs the duration of ACTION POTENTIALS. They are used as ANTI-ARRHYTHMIA AGENTS and VASODILATOR AGENTS.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A class of drugs that act by inhibition of potassium efflux through cell membranes. Blockade of potassium channels prolongs the duration of ACTION POTENTIALS. They are used as ANTI-ARRHYTHMIA AGENTS and VASODILATOR AGENTS.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

See Also

MeSH Record

Synonyms

5 entry terms
  • Channel Blockers, Potassium
  • Potassium Channel Blocker
  • Blocker, Potassium Channel
  • Blockers, Potassium Channel
  • Channel Blocker, Potassium

MeSH Record

Aspects Covered

24 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, 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 Record

History Note

2002

MeSH Record

Previous Indexing

  • Ion Channels (1980-1988)
  • Potassium Channels/antagonists & inhibitors (1988-2001)

MeSH Hierarchy

Tree Numbers

  1. D27.505.519w.562.500w
  2. D27.505.954.411w.645w

AMA Style

References

  1. National Library of Medicine. Potassium Channel Blockers. Medical Subject Headings (MeSH). 2026. Unique ID D026902. http://id.nlm.nih.gov/mesh/2026/D026902
  2. Potassium Channel Blockers. In: Wikipedia. https://en.wikipedia.org/wiki/Potassium_channel_blocker
  3. Potassium Channel Blockers. In: Wikidata. https://www.wikidata.org/wiki/Q7234689