selling point. you may lose weight. by 2021, the drugmaker started selling a weight loss specific dose of it aimed at treating obese and overweight adults. early results seem remarkable. company-sponsored studies indicated those using it can expect to lose 15% of their body weight after nearly a year and a half of treatment. as users celebrate their slimmer weigh waistlines, they are eye ing bi profits. after all, diet and weight loss is big business. americans spend $76 billion last year alone trying to shed pounds.