"i&#039;ve taken these for approximately 18 months and i have lost 10 stone 11lbs (as of this morning). i love them. i don&#039;t get any side effects really aside from occasionally unable to sleep for longer than 5/6 hours. i&#039;m more focused, procrastination isn&#039;t even in my vocabulary and i am feeling amazing - only 3 more stone to go and i am there - all thanks to diethylpropion."