"i have been on this medication for 1 month , and it does take away hunger. i take my pill around 10am because i&#039;m more of a late night eater. i have had the headaches the first week taking the pills but they have slightly gone away. this pill does make me feel a bit of the rapid heart beat but only for a bit. i did feel a bit of depression the first week taking it and its not like me at all but as my body is getting used to it that feeling went away. i have tried phentermine and that gave me crazy energy. but 
i was still able to eat on it, it did not really take my hunger away like diethylpropion. i&#039;m on the 75mg er so it releases slower for the whole day. i exercise 5 days a week for 1hr and 30 min lost 12lbs and exercise and eat right."