SPL Set ID: ce512844-5220-4661-809f-56d088699c9c
1 drug(s) with this SPL Set ID
Montelukast sodium USP, the active ingredient in montelukast sodium chewable tablet, 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-hydroxymethylethyl) phenyl] propyl] thio] methyl] cyclopropaneacetic acid, monosodium salt. The empirical formula is C 35 H 35 CINNaO 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 4 mg and 5 mg montelukast sodium chewable tablets, USP contains 4.2 and 5.2 mg montelukast sodium USP, respectively, which are equivalent to 4 and 5 mg of montelukast, respectively. Both chewable tablets contain the following inactive ingredients: aspartame, croscarmellose sodium, cherry flavor, disodium edetate, hydroxypropyl cellulose, mannitol, microcrystalline cellulose, magnesium stearate and red ferric oxide. 112