The generic name of Damicom is Gliclazide, and long-term use of Gliclazide may cause itchy skin. Gliclazide is a hypoglycemic drug, and the commonly used dosage forms include tablets and extended-release tablets. It is suitable for patients with type 2 diabetes mellitus whose efficacy is not satisfied by dietary control, whose pancreatic β-cells have a certain insulin secretion function, and who do not have acute complications such as infection, trauma, and diabetic ketoacidosis. Some patients may experience adverse reactions such as nausea, vomiting, lethargy, rash, itchy skin and urticaria if they take gliclazide for a long time. Known hypersensitivity to gliclazide or one of the excipients, other sulfonylureas, and sulfonamides is contraindicated. Drug use should always be under the supervision of a doctor.