"i have been on/off of phentermine since april 11, 2013. with all my breaks to break the plateau i have been on it combined total for 2 months. i lost 20lbs my first month without any breaks and lost 10lbs my second month. i mostly walked for my exercise. about 4-5 days a week. i quit drinking everything besides water. i ate a strict diet of only white meat, protein, veggies, and fruit. i rarely ate carbs and if i did it was whole wheat/grain. i have stalled so bad on my weight loss but haven&#039;t gained anything and have not been having a good diet. starting tomorrow i will have been off of it for 1 month. i plan to start my last bottle tomorrow to drop my last 20lbs."