Taking metformin farts may be the occurrence of an adverse drug reaction. Metformin is a glucose-lowering medication, and the main side effect is a GI reaction; therefore, taking metformin farts may be one of the adverse reactions to taking metformin. Choosing to take the medication with a meal, starting with a small dose and gradually increasing the dose, may reduce the incidence of GI adverse reactions. If the farting is only excessive after taking metformin and is not accompanied by serious adverse reactions such as nausea, vomiting, or diarrhea, you can usually continue to take the medication and the farting will improve after taking the medication for a period of time and becoming tolerant to metformin. If the farts seriously affect the life or accompanied by abdominal pain, diarrhea and other conditions, you should stop taking the drug in time, go to the hospital in time to consult the doctor to change the appropriate glucose-lowering drugs. It should be noted that the use of this drug is contraindicated in people who are allergic to this drug, severe renal failure, serious infections, trauma, hepatic insufficiency, acute alcoholism and so on. If you have farted too much on Metformin, you should go to the hospital in time and adjust the use of the drug or stop it according to the doctor’s advice and guidance.