"hello!  today is nov. 13, 2016 i am a 5&#039;4&quot; female and weighed 172lbs when i started phentermine 37.5mg/day (tablets) on oct. 18, 2016.  the first 7-10 days i could tell when the medication &quot;kicked in&quot;, i had a little &quot;rush&quot; of energy and slight hand trembling.  those have disappeared but my mouth stays dry (using biotine). i have not lost any weight, and i confess i haven&#039;t exercised much, but my appetite has not decreased either.  i&#039;m going back for my 1 month weigh in this week. i&#039;ll keep reading and posting--this forum is encouraging!  wish i had discovered it before now!!"