My Dad was on Metformin, he said, "NOT FUN." He had a lot of side effects and stopped taking it. He ended up in the hospital for his diabetes after ignoring it for so long. He's on Glipzlide (spelling???) and that has helped him eat less, lose weight and control his blood sugar. He's doing pretty well now, but he's also on blood thinners and all the rest. He's kinda on borrowed time at age 70, which to be fair he should get a trophy for out living most everyone else. This disease really has cut a swath through my relatives.