Orlistat (Xenical) has been reformulated and made available for over-the counter sales as ALLI.  Loudly trumpeted is the fact that in its new manifestation, it no longer has the same level of unpleasant side effects of the original. 

After all, who wants "oily spotting in your undergarments, oily or fatty stools, orange or brown colored oil in your stool, gas with discharge, an oily discharge, loose stools, or an urgent need to go to the bathroom, inability to control bowel movements, an increased number of bowel movements, or stomach pain, nausea, vomiting, diarrhea, rectal pain" - at whatever level.

Perhaps the fact that it also may cause cancer of the colon is immaterial?

Diet drug Xenical renamed Alli, still a cancer worry

Weight Control - eating for health

Help from supplements