"i&#039;ve only taken this for a week. 35mg phendimetrazine twice a day and i don&#039;t feel anything at all. no extra energy, i&#039;m still consuming as much coffee. in fact i have been sleeping even more since starting. it might curb my appetite a smidge if i take the tablet just in the right amount of time before a meal. four-ish hours later though my hunger is back in full force. usually have hunger pains then too for eating less when i ate when it mildly suppressed my appetite. no weird side effects except a chalky taste in my throat. this stuff has been pretty useless i follow up with my doctor later this week and i will be requesting something else."