Phentermine
"I just started taking the pill on July 23 and I weigh 178, today is July 26 and I now weigh 174.  If you have dry mouth try chewing sugar free gum as a singer I use that trick all the time to keep my mouth moist and it works. Please drink lots of water as well, but it makes the dry mouth not so bad.  I have a thyroid condition so I take that pill early in the morning and I make myself eat a piece of toast or something 30 minutes later and take the pill and I don't have a problem sleeping at night.  I walk every other day and I have a decrease in my appetite, but I still eat. Some people say that don't eat at all that is not healthy.  Oh and I don't drink or eat anything with caffeine so I won't have a problem sleeping at night with the meds"