SPL Set ID: b4168479-09ec-402c-89cc-456bc8485017

Losartan potassium and hydrochlorothiazide tablets USP, 50 mg/12.5 mg, losartan potassium and hydrochlorothiazide tablets USP, 100 mg/12.5 mg and losartan potassium and hydrochlorothiazide tablets USP, 100 mg/25 mg combine an angiotensin II receptor blocker acting on the AT 1 receptor subtype and a diuretic, hydrochlorothiazide. Losartan potassium, USP 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 powder with a molecular weight of 461.00. It is freely soluble in water, sparingly soluble in isopropyl alcohol, and slightly soluble in acetonitrile. Oxidation of the 5-hydroxymethyl group on the imidazole ring results in the active metabolite of losartan. Hydrochlorothiazide, USP 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, practically odorless with a molecular weight of 297.74, which is very slightly soluble in methanol, sparingly soluble in Acetonitrile, soluble in 1% NaOH solution, practically insoluble or insoluble in water, ethanol and buffer solution with pH value range from 4.5 to 8.0. Losartan potassium and hydrochlorothiazide tablets are available for oral administration in three tablet combinations of losartan and hydrochlorothiazide. Losartan potassium and hydrochlorothiazide tablets USP, 50 mg/12.5 mg contains 50 mg of losartan potassium USP and 12.5 mg of hydrochlorothiazide, USP. Losartan potassium and hydrochlorothiazide tablets USP, 100 mg/12.5 mg contains 100 mg of losartan potassium USP, and 12.5 mg of hydrochlorothiazide USP. Losartan potassium and hydrochlorothiazide tablets USP, 100 mg/25 mg contains 100 mg of losartan potassium, USP and 25 mg of hydrochlorothiazide USP. Inactive ingredients are hydroxypropyl cellulose, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, pregelatinized starch, and titanium dioxide. Losartan potassium and hydrochlorothiazide tablets USP, 50 mg/12.5 mg and 100 mg/25 mg also contain iron oxide yellow. Losartan potassium and hydrochlorothiazide tablets USP, 50 mg/12.5 mg contains 4.24 mg (0.108 mEq) of potassium, losartan potassium and hydrochlorothiazide tablets USP, 100 mg/12.5 mg contains 8.48 mg (0.216 mEq) of potassium, and losartan potassium and hydrochlorothiazide tablets USP, 100 mg/25 mg contains 8.48 mg (0.216 mEq) of potassium. figure-1 figure-2