- Other names 別名：N/A
- Common Trade name(s) 常見牌子：Glucophage
- Usage 效用：Treats type 2 diabetes 治療二型糖尿病
- Drug labels and icon 藥物標籤及其圖標 : 口服 Take orally, 飯後服用 After food
Metformin lowers blood sugar and improves the body cells’ response to insulin. It is the first-line drug for treatment of type 2 diabetes mellitus and should be used along with diet management and exercise to optimise blood glucose control.
Common side effects
Nausea, vomiting, diarrhoea, abdominal pain, loss of appetite, flatulence
- If you are taking metformin together with other glucose-lowering diabetes medications, such as gliclazide, there is a risk of hypoglycaemia (blood sugar level being too low). If you experience signs of hypoglycaemia such as fatigue, weakness, dizziness and increased sweating, you may eat or drink something containing sugar.
- If you experience signs of lactic acidosis, such as appetite loss, nausea, vomiting, cramps, abdominal pain, contact your doctor immediately.
- Take with meal to reduce stomach discomfort
- Avoid excessive alcohol
Who cannot take
- Patients with severe kidney problems
- Patients with acute/chronic metabolic acidosis, such as diabetic ketoacidosis
Cautions with other medicine/food
- Diuretics, such as furosemide
- Some anti-inflammatory medications, such as ibuprofen and celecoxib
- Some blood pressure lowering medications, including ACE inhibitors (such as lisinopril) and angiotensin II receptor antagonists (such as valsartan)
Pregnancy and breastfeeding
Category B: Either animal-reproduction studies have not demonstrated a foetal risk but there are no controlled studies in pregnant women or animal-reproduction studies have shown an adverse effect (other than a decrease in fertility) that was not confirmed in controlled studies in women in the 1st trimester (and there is no evidence of a risk in later trimesters).