Metformin
"I've only been on Metformin for about a month and a half, I've lost about 12lbs, which is pretty cool, because I've never had any success with calorie counting or different diets. I do have stomach cramps,  occasional diarrhea,  and dizziness but nothing too bad. Im only on 500mg twice daily. I'm actually really amazed with this medication,  it makes me feel fine, I have my energy back, not constantly craving sweets and caffeine,  overall I have to give it a ten."