This has been concluded to be species-specific for the beagle dog. Thus, verapamil is useful in treating and preventing chest pain angina resulting from spasm contraction of the coronary arteries kopen korting verapamil that reduces the flow of blood to the heart. The electrophysiologic effects of quinidine and verapamil on AV conduction were studied in patients. Verapamil was not mutagenic in the Ames test in test strains at mg per plate with or without metabolic activation. Use in patients with impaired renal function: About 70 of an administered dose of verapamil is excreted as metabolites in the urine. This effect on the heart, along with the relaxation of its blood vessels, may also relieve the symptoms of angina. How to thank TFD for its existence? Tell friend about us, add link to this page, add the site to iGoogle, or visit webmaster page for free fun content.