Phentermine
"I am a 22 year old  mom of 2. I have an almost 2 year old and 2 month old so I never got the chance to lose my baby weight with my first before I got pregnant with my second. I started phentermine on September 3rd at 193 lbs. Today is September 16th (1 week 6 days after starting) and I am at 176! 17 pounds gone in just 13 days! 
No major side effects. I was dizzy the first day about an hour after taking it. Since then, no dizziness. Didn't cause headaches, insomnia, appetite suppression, or mood swings like people have said. The only thing that did happen was I get EXTREME dry mouth. And then I lick my lips to help so now I have chapped lips too lol. Drinking water really helps!"