"another update - today i have lost 20 lbs. and been on qsymia since march 9, 2014.  (3 months, 9 days).  i went four weeks with no loss, then lost a few more.  it&#039;s slow and steady, but it does work.  it&#039;s not a miracle pill, you have to do your part! it does help with cravings and appetite control. i also have to stay very consistent with miralax and stool softeners because it does cause constipation. you have to drink a lot of water with this medication, too, as it will cause you to be thirsty. it&#039;s good to get into the habit of drinking lots of water anyway!"