SPL Set ID: df881501-42ae-624a-e053-2995a90ab2a0

Bisoprolol fumarate and hydrochlorothiazide tablets, USP are indicated for the treatment of hypertension. It combines two antihypertensive agents in a once-daily dosage: a synthetic beta 1 -selective (cardioselective) adrenoceptor blocking agent (bisoprolol fumarate) and a benzothiadiazine diuretic (hydrochlorothiazide). Bisoprolol fumarate is chemically described as (±)-1-[4-[[2-(1-methylethoxy)ethoxy]methyl] phenoxy]-3-[(1-methylethyl)amino]-2-propanol( E )-2-butenedioate (2:1) (salt). It possesses an asymmetric carbon atom in its structure and is provided as a racemic mixture. The S(-) enantiomer is responsible for most of the beta-blocking activity. Its empirical formula is (C 18 H 31 NO 4 ) 2 •C 4 H 4 O 4 and it has a molecular weight of 766.97. Its structural formula is: Bisoprolol fumarate is a white crystalline powder, approximately equally hydrophilic and lipophilic, and readily soluble in water, methanol, ethanol, and chloroform. Hydrochlorothiazide (HCTZ) is 6-Chloro-3,4-dihydro-2 H -1,2,4-benzothiadiazine-7-sulfonamide 1,1- dioxide. It is a white, or practically white, practically odorless crystalline powder. It is slightly soluble in water, sparingly soluble in dilute sodium hydroxide solution, freely soluble in n-butylamine and dimethylformamide, sparingly soluble in methanol, and insoluble in ether, chloroform, and dilute mineral acids. Its empirical formula is C 7 H 8 ClN 3 O 4 S 2 and it has a molecular weight of 297.73. Its structural formula is: Each bisoprolol fumarate and hydrochlorothiazide - 2.5 mg/6.25 mg tablet, USP for oral administration contains: Bisoprolol fumarate…………………………………………..2.5 mg Hydrochlorothiazide………………………………………..6.25 mg Each bisoprolol fumarate and hydrochlorothiazide - 5 mg/6.25 mg tablet, USP for oral administration contains: Bisoprolol fumarate…………………………………………… 5 mg Hydrochlorothiazide……………………………………….. 6.25 mg Each bisoprolol fumarate and hydrochlorothiazide - 10 mg/6.25 mg tablet, USP for oral administration contains: Bisoprolol fumarate…………………………………………...10 mg Hydrochlorothiazide……………………………………….. 6.25 mg Inactive ingredients include pregelatinized starch, anhydrous dicalcium phosphate, magnesium stearate, microcrystalline cellulose, colloidal silicon dioxide. The 10 mg/6.25mg tablet also contains FD&C blue #1 aluminum lake. The 5 mg/6.25 mg tablet also contains iron oxide red & ferrosoferric oxide. The 2.5 mg/6.25 mg tablet also contains ferric oxide. FDA approved dissolution test specifications differ from USP. Bisoprolol-Fumarate thiazide-structure