Orlistat has undergone many clinical trials, and when it is used according to doctor’s recommendations, it is completely safe for the patient. Since Xenical has an impact on lipid metabolism in the body, some patients may experience mild side effects. The majority of these reactions do not persist beyond the initial stage of the treatment, but in some patients they may be prolonged. Patients have reported such side effects as: oily discharge from the rectum, flatulence, an increased number of bowel movements, oily stools with a visible layer of orange or brown fat. These symptoms are a normal result of blocking the absorption of lipids in the intestines and a confirmation that the treatment is working. If the side effects are severe, you might find relief after reducing the amount of consumed fats. The maximum duration of these symptoms is approximately 3-6 months.
No effect of Xenical on the efficacy of hormonal contraception has been found, so patients using Orlistat do not need to use additional protection for the duration of the treatment.