| Xenical medication is used with a reduced-calorie diet to help significantly overweight persons lose weight. It also helps to prevent regaining weight previously lost. Orlistat works by blocking some of the fat normally digested by the intestine. Xenical medication is used with a reduced-calorie diet to help significantly overweight persons lose weight. It also helps to prevent regaining weight previously lost. Orlistat works by blocking some of the fat normally digested by the intestine. Take by mouth exactly as directed by your doctor, usually one pill daily. The full effect on weight may require four to six weeks. Do not increase your dose, take it more frequently or use it for a longer period of time than prescribed because this drug can be habit-forming. Also, if used for a longer period of time, do not suddenly stop using this drug without your doctor's approval. Over time, this drug may not work as well as it did at the beginning. Consult your doctor if weight increases. Dry mouth, drowsiness, constipation and difficulty sleeping may occur. If these effects persist or worsen, notify your doctor promptly. If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not "double- up" the dose to catch up. Dry mouth, drowsiness, constipation and difficulty sleeping may occur. If these effects persist or worsen, notify your doctor promptly. |