"after gaining 90lbs through the last 4 years of nursing school, my heaviest weight of  277lbs when i asked my md for a px for adipex. i started taking phentermine (adipex) 37.5mg daily every am on may 9th  and weighed in at 267.2lbs may 17th, 266.1 may 25th, and 263.9 june 1st.  i also do between 30-60min strength training/cardio 3-4 times/week at the gym. after my first week taking this px, i did find myself needing to pay more attention to eating small meals 5-6/day or the side effect of dizziness would occur. dry mouth is also a side effect which i&#039;ve noticed so i bring water with me everywhere to get my fluids in around 3200ml. i started taking half this dose the other day to decrease the dizziness which has been effective."