If the patient has high blood sugar has been diagnosed with diabetes, you can use Gliclazide under the guidance of the doctor to lower sugar, what is suitable for you is good. Gliclazide is mainly used for type 2 diabetes that cannot be controlled by diet and exercise therapy. Adverse effects of Gliclazide include hypoglycemia, nausea, dyspepsia, diarrhea, constipation, etc. A small number of patients may also experience rash, itching, leukopenia or thrombocytopenia, and elevated transaminases. Contraindications: patients with type 1 diabetes mellitus, diabetic ketoacidosis, diabetic coma, severe hepatic and renal insufficiency. Gliclazide is a prescription drug, it is recommended that patients use the drug under the guidance of a doctor, do not blindly take the drug on their own.