Generic Xenical is used for managing obesity in adults and adolescents 12 years and older. It is also used to reduce the risk of weight regain after previous weight loss. More info »
Regarding the effect: I do notice an increase in bloodflow and a better
stamina using the pills (I use 50mg). A side-effect I have noticed is that
my nose clogs up so I seem like I have a cold for an hour or so after taking
one pill. No other side-effects than that.