"i had results taking phentermine; i immediately had energy and felt like my old self again, as i had been recuperating from a joint replacement and had put on nearly 25 lbs!  the weight came off slowly, about 2-3 lbs a week at first. by the 5th-6th week, i noticed i had lost 12 pounds. i&#039;m now into my 8th week and have lost a total of 17 lbs. i really feel phentermine boosted my metabolism, which has always been slow, as well, as i have not been able to do much exercising due to the surgery. hopefully i can continue taking phentermine so i can reach my goal to lose 30 lbs."