Could Metformin Cause Fatigue?

When you start taking metformin, your doctor will specifically look for signs of anemia. People with a certain type of anemia are more likely to have low vitamin B12 levels when they take metformin. This could lead to side effects and symptoms like fatigue, dizziness, and nerve pain.

What are the most common side effects of metformin?

Nausea, vomiting, and diarrhea are some of the most common side effects people have when they first start taking metformin. These problems usually go away over time.
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The more common side effects of metformin include:
  • heartburn.
  • stomach pain.
  • nausea or vomiting.
  • bloating.
  • gas.
  • diarrhea.
  • constipation.
  • weight loss.

Why do I feel weak after taking metformin?

Fatigue and weakness might result when the cells do not get enough glucose. Diabetes medications, such as insulin or metformin, help more of this sugar to move into the cells and prevent it from building to harmful levels in the blood. A potential side effect of diabetes medications is low blood sugar, or hypoglycemia.

Sarah Jenkins

Sarah Jenkins

Senior Technology Editor & AI Specialist

Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.