I do know what Metformin is for the Dr. explained it to me very clear. This was a trial to see if it help curb the appetite. Not along term thing. The only med that my son takes is his Cortef and Florinef. He is very active,not what you call a couch potatoe,but the out door type. I was the one that was concern with his weight. His weight is 89 lbs and height is 4’4’’ now. Having test done to see why is height is a little slow now. Thanks for being concern I’ll take all the help I can get also.Gail