Metformin extended release, while often effective for weight loss, carries potential side effects. Gastrointestinal issues are common, including nausea, diarrhea, vomiting, and abdominal bloating. These usually lessen with continued use or a dose adjustment. Your doctor might suggest starting with a lower dose to minimize initial discomfort.
Less Common, but Important Side Effects
Less frequently, metformin can cause a lactic acidosis, a dangerous buildup of lactic acid in the blood. This is rare but more likely in individuals with kidney disease, liver disease, or heart failure. Regular blood tests are vital for monitoring kidney function during metformin treatment. Inform your doctor immediately if you experience unusual muscle pain, weakness, or rapid breathing. Severe allergic reactions, though uncommon, are another potential concern; discontinue use and seek medical help if you experience symptoms such as hives, swelling, or difficulty breathing.
Vitamin B12 deficiency can occur in some individuals taking metformin long-term. Your doctor may recommend regular B12 level checks and supplementation if needed. Finally, remember that metformin interacts with several medications; always inform your doctor and pharmacist of all medications, supplements, and herbal remedies you are taking.
