Alli first became available in the US in June of 2007 after it became the first weight loss drug approved for over the counter use.
The way orlistat works to promote weight loss is it reduces calorie intake by blocking the absorption of fat in the stomach and small intestines. It's effectiveness is definite but as with nearly all weight loss pills, it comes with a price.
The most common side effects of Xenical and Alli are oily spotting, flatus with discharge, fecal urgency, fatty/oily stool, oily evacuation, increased defecation, and fecal incontinence, which is another way of saying that the drug can cause uncontrollable greasy diarrhea
On August 24, the FDA reported that it would investigate 30 cases of liver damage reported between 1999 and October 2008 in patients taking orlistat, including six cases of liver failure.
Safe Weight Loss
Why risk your long term health health by using unsafe weight loss practices. Pills usually come with risky side effects and can cause irreversible damage.
A better idea would be to try a more healthy and safe weight loss diet along with regular exercise.