SPL Set ID: c0ff557c-fa50-46f6-aa77-36a4df354e80
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 -dimethyl imidodicarbonimidic diamide hydrochloride. The structural formula is as shown below: Metformin hydrochloride, USP is a white or almost white crystals with a molecular formula of C 4 H 11 N 5 •HCl and a molecular weight of 165.62. It is freely soluble in water, slightly soluble in 96% ethanol, practically insoluble in acetone and in methylene chloride. The pK a of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. Metformin hydrochloride extended-release tablets, USP contains 500 mg or 750 mg of metformin hydrochloride USP, 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, and magnesium stearate. Metformin hydrochloride extended-release tablets, USP 750 mg contain the inactive ingredients carboxymethylcellulose sodium, hypromellose, and magnesium stearate. Metformin Hydrochloride Extended-Release Tablets, USP meets USP Dissolution Test 11. Structure