Potassium Channel Blockers

**Definition:** 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.

**Tree numbers:** - D27.505.519.562.500 - D27.505.954.411.645

**Synonyms:** - Potassium Channel Blocker - Channel Blockers, Potassium