"i am a 33 year old female and started taking qysmia approx 1 and a half months ago. on the low dose 3.75 i did not lose a single pound. about a month ago i started the 7.5mg and i am down 18lbs! i have not experienced any horrible side effects. i have experienced a boost in energy, but that may be related to the weight loss. i have been very happy on this medication and will continue my regimen until i reach my goal weight."