Phentermine
"I started the medication on 5/28/09 and its now June 9th.  I have lost 6 lbs in eleven days. I am happy with the medication and it definitely helps with the appetite. However, you do have to exercise and watch what you eat. I don't have those sweet cravings now. I have had little to know side effects. I really haven't noticed having extra energy but do have dry mouth.  I chew sugarless gum and drink plenty of water."