Read the side effects of Metformin as described in the medical literature. In case of any doubt consult your doctor or pharmacist.
Most Common - Diarrhea, vomiting and infection.
Body as a Whole - Accidental injury, headache and infection.
Gastrointestinal - Indigestion and nausea.
Respiratory - Nose inflammation.
Other Precautions : * Avoid excess dosage.