"i started using phentermine 37.5 just two days ago and i love it. i started at 5&#039;6&quot;, 224lbs. this morning i weighed myself and i&#039;m already down to 219lbs. i am hoping to lose about 50-70 pounds at least. i do get the dry mouth that others have said, but i don&#039;t have the energy boost, i do however have to pee like every 30-60 minutes i think it&#039;s because of the amount of water i&#039;m drinking now."