"i have been taking contrave for 4 days.  i am 5&#039;2 1/2 and wgt 156.  i was taking phentermine but then i began to read about contrave and asked my dr. for it. i have been taking it only four days i don&#039;t feel anything.  does this medicine have to be taken for a while before it kicks in. i take one in the am. i don&#039;t have any of the symptoms that i read about. i not sure about the cravings or eating to much because i feel like it may be a placebo effect.  did anyone else have this kind of feeling.?  should i just give it more time to kick in.?  its not an inexpensive drug to keep taking if it doesn&#039;t work. i hope i am wrong and the weight loss will start happening soon as it did for some of the people i have read about."