Which of the following are side effects of metformin
Question Which of the following are side effects of metformin? (Select all that apply)
A. Lactic acidosis
B. Hypoglycemia
C. Gastrointestinal discomfort (nausea, diarrhea)
D. Weight gain
Answer: AC
Explanation: Metformin is a first-line drug for type 2 diabetes. Common side effects include gastrointestinal discomfort (nausea, diarrhea, abdominal pain), which is usually transient. Severe but rare side effects are lactic acidosis (contraindicated in patients with renal failure, liver disease). Metformin does not cause hypoglycemia when used alone, nor does it lead to weight gain; on the contrary, it may cause mild weight loss. Hence, the correct answers are AC.
