"started diet on 4/12 (236.8 lbs) using my fitness pal app 1200 calorie diet. lost 8.3 in 7 days. began pentermine on 4/21 (228.8lbs) today is 5/5 and i&#039;m down 14lbs from phentermine 22.5 lbs total since 4/12. goal weight is 175lbs. last seven days i lost 4.4lbs so the weight loss slows down after the first weeks.  i&#039;ve been running 3 miles every other day and workout 3-4x a week. drink plenty of water. goal weight 175lbs. i&#039;m on a 600 cal a day diet and i rarely go beyond 450 calories. no side effects, i take weekly pics, huge difference even over the last 7 days, i look 10 years younger already. i&#039;m 45."