SPL Set ID: 41a8bb80-7b0b-476c-8134-5d161c3239c8
1 drug(s) with this SPL Set ID
Metformin hydrochloride extended-release tablets 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 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 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 xanthan gum, hypromellose, sodium carbonate, povidone, talc, colloidal silicon dioxide and magnesium stearate. Metformin hydrochloride extended-release tablets, USP 750 mg contain the inactive ingredients xanthan gum, hypromellose, sodium carbonate, povidone, talc, colloidal silicon dioxide, magnesium stearate and ferric oxide (red). Metformin hydrochloride extended-release tablets meet USP dissolution test 10. metformin-er-structure