antiarrhythmic

an·ti·ar·rhyth·mic  (nt--rmk, nt-)

adj.

Preventing or alleviating irregularities in the force or rhythm of the heart.

n.

An antiarrhythmic substance, such as lidocaine.

Thesaurus

Noun

1.

antiarrhythmic - a drug used to treat an abnormal heart rhythm antiarrhythmic drug, antiarrhythmic medication amiodarone, Cordarone - an antiarrhythmic drug (trade name Cordarone) that has potentially fatal side effects and is used to control serious heart rhythm problems only when safer agents have been ineffective encainide, Enkaid - antiarrhythmic drug (trade name Enkaid) used to treat life-threatening arrhythmias but increases the risk of sudden death in heart attack patients flecainide, Tambocor - oral antiarrhythmic medication (trade name Tambocor) used as a last resort in treating arrhythmias; increases the risk of sudden death in heart attack patients medicament, medication, medicinal drug, medicine - (medicine) something that treats or prevents or alleviates the symptoms of disease mexiletine, Mexitil - antiarrhythmic drug (trade name Mexitil) used to treat ventricular arrhythmias Quinidex, quinidine, Quinora - cardiac drug (trade names Quinidex and Quinora) used to treat certain heart arrhythmias tocainide, Tonocard - antiarrhythmic drug (trade name Tonocard) used to treat ventricular arrhythmias when less dangerous drugs have failed