Glymidine (Glycodiazine ) is a hypoglycaemic agent which has been introduced as a possible alternative to the sulphonylurea as and biguanides for the oral treatment of diabetes mellitus. It is one of a group of lipid soluble sulphapyrimidine derivatives synthesized by Gutsche et al. and bears some structural resemlance to tolbutamide. Its mode of action is similar to that of the sulphonylureas in that it appears to stimulate insulin release from the pancreas. Glycodiazine likely binds to ATP-sensitive potassium channel receptors on the pancreatic cell surface, reducing potassium conductance and causing depolarization of the membrane. Membrane depolarization stimulates calcium ion influx through voltage-sensitive calcium channels. This increase in intracellular calcium ion concentration induces the secretion of insulin. It is used for the concomitant use with insulin for the treatment of noninsulin-dependent (type 2) diabetes mellitus. Glycodiazine is used concomitantly with insulin for the treatment of noninsulin-dependent (type 2) diabetes mellitus.