Duac el orlistat is a lipase inhibitor which used for helping you to lose your weight and also keep it from returning. Orlistat is prescribed for obese individuals and for overweight people who have other health problems such as diabetes, high blood pressure or high cholesterol levels. Orlistat blocks the absorption of dietary fat into the bloodstream, thereby reducing the number of calories you get from a meal. You may use Orlistat together with diet and exercises to get more benefits. Also, note that as long as you take the drug you will get a result. Usually, the recommended dose is 50 mg. It is taken approximately 0,5-1 hour before sexual activity. Do not take Viagra more than once a day. A high-fat meal may delay the time of the effect of this drug. Try not to eat grapefruit or drink grapefruit juice while you are being treated with Sildenafil Citrate.