Verelan

DRUG DESCRIPTION

Verelan® (verapamil hydrochloride capsules) is a calcium ion influx inhibitor (slow channel blocker or calcium ion antagonist). Verelan is available for oral administration as a 360 mg hard gelatin capsule (lavender cap/yellow body), a 240 mg hard gelatin capsule (dark blue cap/yellow body), a 180 mg hard gelatin capsule (light grey cap/yellow body), and a 120 mg hard gelatin capsule (yellow cap/yellow body). These pellet filled capsules provide a sustained-release of the drug in the gastrointestinal tract. The structural formula of verapamil HCl is given below:

Verelan® (verapamil hydrochloride capsules) Structural Formula Illustration

C27H38N2O4 •HCl        M.W. = 491.0 7

Chemical name: Benzeneacetonitrile, ?-[3-[[2-(3,4-dimethoxyphenyl)-ethyl]methylamino]propyl]-3,4-dimethoxy-?-(1-methylethyl), monohydrochloride.

Verapamil HCl is an almost white, crystalline powder, practically free of odor, with a bitter taste. It is soluble in water, chloroform and methanol. Verapamil HCl is not structurally related to other cardioactive drugs. In addition to verapamil HCl the Verelan capsule contains the following inactive ingredients: fumaric acid, talc, sugar spheres, povidone, shellac, gelatin, FD&C red #40, yellow iron oxide, titanium dioxide, methylparaben, propylparaben, silicon dioxide, and sodium lauryl sulfate. In addition, the Verelan 240 mg and 360 mg capsules contain FD&C blue #1 and D&C red #28; and the Verelan 180 mg capsule contains black iron oxide.



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