AKT-4744

A 65-year-old man comes to the clinic four weeks after starting metformin for his type 2 diabetes. He has a BMI of 27.5 kg/m^2. Despite gradually increasing the dose to 500mg three times a day, he has been experiencing severe diarrhea. He attempted to lower the dose to 500mg twice a day, but his symptoms persisted. What is the best course of action?