Verapamil
chemical compound

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.
Common side effects include headache, low blood pressure, nausea, and constipation. Other side effects include allergic reactions and muscle pains. It is not recommended in people with a slow heart rate or heart failure. It is believed to cause problems for the fetus if used during pregnancy. It is in the non–dihydropyridine calcium channel blocker family of medications.
Verapamil was approved for medical use in the United States in 1981. It is on the World Health Organization's List of Essential Medicines.
“Verapamil” enters the record as chemical compound. Crown Archives preserves that source wording while asking what Verapamil, chemical and compound can confirm, complicate or overturn.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Aug 21, 2026. The linked authority identifier is Q410291. The Library of Congress control number is sh93000011. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1981.
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This entry incorporates text from “Verapamil” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.