SPL Set ID: bcd49102-a21c-4628-a322-6cdd934e7f09
1 drug(s) with this SPL Set ID
Montelukast sodium, USP, the active ingredient in montelukast sodium chewable 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 4 mg and 5 mg montelukast sodium chewable tablet, USP contains 4.2 mg and 5.2 mg montelukast sodium, USP, respectively, which are equivalent to 4 mg and 5 mg of montelukast, respectively. Both chewable tablets contain the following inactive ingredients: aspartame powder, cherry flavor, croscarmellose sodium, hydroxypropyl cellulose, iron oxide red, magnesium stearate, mannitol and microcrystalline cellulose. 6faadd90-figure-02