A person should inform their doctor about any medications they are taking, as some can interact with metformin. Medications that may increase the risk of lactic acidosis include: carbonic anhydrase inhibitors, cephalexin, cimetidine, dolutegravir, ethanol, bupropion, and lamotrigine. Some drugs that may cause hypoglycemia when a person takes them alongside metformin include: androgens, alpha-lipoic acid, salicylates, selective serotonin reuptake inhibitors, quinolones, and other anti-diabetic agents. A doctor may also recommend that a person: stops smoking, follows a nutritious diet, and exercises regularly.