药物信息为Riomet (Ranbaxy Laboratories Inc.): DESCRIPTION

RIOMET (metformin hydrochloride oral solution) is an oral antihyperglycemic drug used in the management of type 2 diabetes. Metformin hydrochloride (N,N- dimethylimidodicarbonimidic diamide hydrochloride) is not chemically or pharmacologically related to any other classes of oral antihyperglycemic agents. The structural formula is as shown:

Metformin hydrochloride is a white to off-white crystalline compound with a molecular formula of C ₄H₁₁N₅•HCl and a molecular weight of 165.63. Metformin hydrochloride 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.

RIOMET contains 500 mg of metformin hydrochloride per 5 mL and the following inactive ingredients: Saccharin Calcium, Potassium Bicarbonate, Xylitol, Hydrochloric Acid, Purified Water and Cherry Flavor.