Metformin, while generally safe and effective, can cause side effects. Common ones include nausea, diarrhea, and stomach upset. These often lessen as your body adjusts to the medication; starting with a low dose and gradually increasing it can help.
Less frequent but still possible side effects involve vitamin B12 deficiency, leading to fatigue and nerve problems. Regular blood tests can monitor this. A metallic taste in your mouth is another possibility, usually mild and temporary.
Rarely, metformin can cause lactic acidosis, a serious condition. This risk increases with kidney problems, liver disease, or excessive alcohol consumption. Always inform your doctor of any pre-existing conditions.
Weight loss is a common, beneficial side effect for many, but some experience weight gain. Dietary changes and exercise may help manage weight changes associated with metformin.
Skin reactions like rash are infrequent. Stop taking metformin and contact your doctor if you develop a rash or other allergic reactions.
Remember, this information isn’t a substitute for professional medical advice. Consult your doctor before starting or changing your medication, particularly if you have pre-existing health conditions.


