Nisoldipine description
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: :Abdurahman Khalil, M.D. [2]
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Description
SULAR®(nisoldipine) is an extended release tablet dosage form of the dihydropyridine calcium channel blocker nisoldipine. Nisoldipine is 3,5-pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-, methyl 2-methylpropyl ester, C20H24N2O6, and has the structural formula:
Nisoldipine is a yellow crystalline substance, practically insoluble in water but soluble in ethanol. It has a molecular weight of 388.4. SULAR tablets comprise three layers: a top barrier layer, a middle layer containing nisoldipine, and a bottom barrier layer. The erodible barrier layers and the hydrogel middle layer provide for the controlled release of the drug. SULAR tablets contain either 8.5, 17, 25.5 or 34 mg of nisoldipine for once-a-day oral administration.
Inactive ingredients in the formulation include: Hypromellose, hypromellose phthalate, lactose, glyceryl behenate, povidone, magnesium stearate, silicon dioxide, methacrylic acid copolymer, and sodium lauryl sulfate. Inactive ingredients in the film coating include: polydextrose, titanium dioxide, hypromellose, polyethylene glycol, iron oxide, and carnauba wax. Additionally, the 17 mg formulation contains FD&C Yellow #5.