SPL Set ID: 8d56b5db-e72d-4f09-aed4-09e65a27e9ff

Losartan potassium and Hydrochlorothiazide Tablets USP, 50/12.5, Losartan potassium and Hydrochlorothiazide Tablets USP, 100/12.5 and Losartan potassium and Hydrochlorothiazide Tablets USP, 100/25 combine an angiotensin II receptor blocker acting on the AT 1 receptor subtype and a diuretic, hydrochlorothiazide. Losartan potassium, a non-peptide molecule, is chemically described as 2-butyl-4-chloro-1-[ p- ( o -1 H ­tetrazol-5-ylphenyl)benzyl]imidazole-5-methanol monopotassium salt. Its empirical formula is C 22 H 22 ClKN 6 O, and its structural formula is: Losartan potassium, USP is a white to off-white free-flowing crystalline powder with a molecular weight of 461.01. It is freely soluble in water, soluble in alcohols, and slightly soluble in common organic solvents, such as acetonitrile and methyl ethyl ketone. Oxidation of the 5-hydroxymethyl group on the imidazole ring results in the active metabolite of losartan. Hydrochlorothiazide is 6-chloro-3,4-dihydro-2 H -1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide. Its empirical formula is C 7 H 8 ClN 3 O 4 S 2 and its structural formula is: Hydrochlorothiazide, USP is a white, or practically white, crystalline powder with a molecular weight of 297.74, which is slightly soluble in water, but freely soluble in sodium hydroxide solution. Losartan potassium and hydrochlorothiazide is available for oral administration in three tablet combinations of losartan and hydrochlorothiazide. Losartan potassium and hydrochlorothiazide tablets 50/12.5 contains 50 mg of losartan potassium, USP and 12.5 mg of hydrochlorothiazide, USP. Losartan potassium and hydrochlorothiazide tablets 100/12.5 contains 100 mg of losartan potassium, USP and 12.5 mg of hydrochlorothiazide, USP. Losartan potassium and hydrochlorothiazide tablets 100/25 contains 100 mg of losartan potassium, USP and 25 mg of hydrochlorothiazide, USP. Inactive ingredients are microcrystalline cellulose, lactose monohydrate, pregelatinized starch, magnesium stearate, hydroxypropyl cellulose, hypromellose, titanium dioxide and carnauba wax. Losartan potassium and hydrochlorothiazide 50/12.5 and losartan potassium and Hydrochlorothiazide 100/25 also contain D&C yellow No. 10 aluminum lake. Losartan potassium and hydrochlorothiazide tablets 50/12.5 contains 4.24 mg (0.108 mEq) of potassium, losartan potassium and hydrochlorothiazide tablets 100/12.5 contains 8.48 mg (0.216 mEq) of potassium, and losartan potassium and hydrochlorothiazide tablets 100/25 contains 8.48 mg (0.216 mEq) of potassium.