SPL Set ID: 3ab005d4-bc99-4fdb-e063-6394a90a5124
1 drug(s) with this SPL Set ID
Metformin hydrochloride oral solution contains the biguanidine antihyperglycemic agent metformin in the form of monohydrochloride salt. Metformin hydrochloride, USP is N,N-dimethylimidodicarbonimidic diamide hydrochloride. The structural formula is shown as: Metformin hydrochloride, USP is a white crystalline powder with a molecular formula of C 4 H 11 N 5 •HCl and a molecular weight of 165.6 g/mol. The pKa of metformin is 2.8, 11.5 (32 ºC). The pH of a 10% aqueous solution of metformin hydrochloride is 6.89. It is freely soluble in purified water; slightly soluble in alcohol; practically insoluble in acetone and in methylene chloride. Metformin hydrochloride oral solution contains 500 mg of metformin hydrochloride, USP (the equivalent of 389.93 mg metformin) per 5 mL and the following inactive ingredients: Benzoic acid, hydrochloric acid, potassium bicarbonate, purified water, strawberry flavor, sucralose, and xanthan gum. structure