SPL Set ID: a9e7608f-540c-d90c-e053-2a95a90a4f98
1 drug(s) with this SPL Set ID
Metformin Hydrochloride Extended-Release Tablets, USP contain the antihyperglycemic agent metformin, which is a biguanide, in the form of monohydrochloride.The chemical name of metformin hydrochloride is N,N -dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is as shown below: Metformin hydrochloride, USP is a white to off-white crystalline compound with a molecular formula of C 4 H 11 N 5 •HCl and a molecular weight of 165.63. It is freely soluble in water and is practically insoluble in acetone, ether, and chloroform. The pKa of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin Hydrochloride Extended-Release Tablets, USP contain 500 mg or 750 mg of metformin hydrochloride, which is equivalent to 389.93 mg, 584.90 mg metformin base, respectively. Metformin Hydrochloride Extended-Release Tablets, USP 500 mg contain the inactive ingredients carboxymethylcellulose sodium, hypromellose, microcrystalline cellulose, and magnesium stearate. Metformin Hydrochloride Extended-Release Tablets, USP 750 mg contain the inactive ingredients carboxymethylcellulose sodium, FD&C yellow #6 aluminum lake, hypromellose, microcrystalline cellulose, and magnesium stearate. USP dissolution test 16 is used. structure