"been on generic adipex for 1 month. start weight 183. current weight 171. drink lots of water on this. dehydration can cause headaches ( get migraines already so this did not increase due to the medication). first day i was nauseous. first week was extreme dry mouth and complete lack of appetite. i had to remind myself to eat during the first week. at some point during the second week i was feeling a bit hungry but not the constant hunger i experienced before. as of the end of the first month the only persisting side effect if the dry mouth. i&#039;m also not sleeping very well! but i just take tylenol pm for that. overall i feel good. i&#039;m losing weight. im less hungry so i&#039;m selecting better food choices. (chocoholic lol) and no serious issues."