"i started phentermine(37.5mg) on march 30th. i started out at 246 lbs.i am now down to 230.4! this pill does work! i have barely exercised, i eat 1 package oatmeal in the morning and for lunch and supper i portion my food to about 1cup. if i am not hungry for supper or lunch, i eat fruit. drink lots of water, very dry mouth has gotten worse since the first week.the first day i had so much energy and it felt wonderful! my side effects which have been iffy but i&#039;ve managed are: dry mouth, occasional headache, trouble falling asleep, anxiety ,tightness in chest, panic attack (only 1 day and it was bad) , tingling in arms, constipation  (that&#039;s why i eat oatmeal every morning), dizziness. but the belly is going down and self esteem up!"