SPL Set ID: ccbbf0d6-efd9-4fdd-9e7b-e3d293062609
1 drug(s) with this SPL Set ID
Montelukast sodium, USP, the active ingredient in montelukast sodium tablets, USP, is a selective and orally active leukotriene receptor antagonist that inhibits the cysteinyl leukotriene CysLT 1 receptor. Montelukast sodium, USP is described chemically as [ R -( E )]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid, monosodium salt. The molecular formula is C 35 H 35 ClNNaO 3 S, and its molecular weight is 608.18. The structural formula is: Montelukast sodium, USP is a hygroscopic, optically active, white to off-white powder. Montelukast sodium, USP is freely soluble in ethanol, methanol, and water and practically insoluble in acetonitrile. Each 10 mg film-coated montelukast sodium tablet, USP contains 10.4 mg montelukast sodium, USP, which is equivalent to 10 mg of montelukast, and the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, lactose monohydrate, magnesium stearate, and microcrystalline cellulose. The film coating consists of: black iron oxide, hydroxypropyl cellulose, hypromellose, red iron oxide, titanium dioxide, and yellow iron oxide. a1ed0112-figure-01