"started phentermine 3.5 on sept 8, 2015.  starting weight was 276. i am 5&#039;1 and 53 years old.  i went to the dr. on october 8, 2015 and weighed in at 262.  i did not do any exercise all.  i could not believe it.  i&#039;m already starting to feel better.  but have a long way to go. it really does not make you hungry.  i have to force my self to eat.  and it really does give you energy. i did get a little  jittery the first 3 days then it went away.  side  effects very dry mouth,  constipation (but i take a stool  softener), i have to take early in the morning, if not i can&#039;t sleep. i would highly recommend you give this a try!  let&#039;s see what next month will bring!!"