"first of let me say that i was only able to take the sample pen of saxenda because it was too expensive and my insurance, bcbsil and express scripts, only covered  $150 of the total $1300 plus that it cost.  but i will say that in those 3.5 weeks i lost 16lbs.  it did give me headaches and really bad heartburn.  my appetite was gone and i had no urge to snack on junk food.  between meals, small meals, i would eat a handful of peanuts or a tangerine or small apple and would be completetly good.  i did not workout.  couldn&#039;t really due to fatigue which was also an issue.  if i didn&#039;t eat enough through the day though i would end up eating bad at night.  you must eat but eat healthy.  tums, pepto and fiber were my best friends."