Phentermine
"I began talking Adipex since March 10, 2009.  I am down 14 pounds.  I found that after a couple of weeks I was getting a tolerance to the medication. I stopped taking it for two days and the weight started to fall off again.  I exercise at least 3 times a week by walking and running on my treadmill and using stretch bands.  I feel great. I still have twenty pounds to go, but I am eating MUCH healthier and do not crave junk food anymore.  Make sure you change your eating habits so you don't gain the weight back when you get off the medicine.  This is just the jump start that I needed to get back in shape after having two kids."