Verapamil, sold under various trade names, is a calcium channel blocker medication used for the treatment of high blood pressure, angina (chest pain from not enough blood flow to the heart), and supraventricular tachycardia. It may also be used for the prevention of migraines and cluster headaches. It is given by mouth or by injection into a vein.
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{{Infobox drug | Watchedfields = changed | verifiedrevid = 461939027 | image = Verapamil structure.svg | image_class = skin-invert-image | width = | alt = | image2 = Verapamil-from-xtal-Mercury-3D-bs.png | image_class2 = bg-transparent | width2 = 200 | chirality = Racemic mixture | caption =
| pronounce = | tradename = Isoptin, Calan, others | Drugs.com = | MedlinePlus = a684030 | DailyMedID = Verapamil | pregnancy_AU = C | pregnancy_AU_comment = | pregnancy_category= | routes_of_administration = By mouth, intravenous | class = Calcium channel blocker | ATC_prefix = C08 | ATC_suffix = DA01 | ATC_supplemental =
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