Xenical (orlistat) is a medication used to treat obesity. It works by blocking the absorption of fat from the diet. Xenical is available by prescription only.
Xenical is an effective medication for weight loss. In clinical trials, people who took Xenical lost an average of 10% of their body weight over a year. Xenical is also safe and well-tolerated. The most common side effects are gastrointestinal, such as diarrhea, flatulence, and oily spotting.
