antiarrhythmic

[an-tee-uh-rith-mik, -uh-rith-, an-tahy-] Pharmacology.
adjective
1.
of or pertaining to any substance that prevents, inhibits, or alleviates heartbeat irregularities.
noun
2.
any such substance, as lidocaine.

Origin:
1950–55; anti- + arrhythmic

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American Heritage
Medical Dictionary

antiarrhythmic an·ti·ar·rhyth·mic (ān'tē-ə-rĭð'mĭk, ān'tī-)
adj.
Preventing or alleviating irregularities in the force or rhythm of the heart. n.
An antiarrhythmic substance, such as lidocaine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Catheter ablation vs antiarrhythmic drug therapy for atrial fibrillation: a systematic review.
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