Orlistat is a lipase inhibitor for obesity management that acts by inhibiting the absorption of dietary fats. At the recommended therapeutic dose of Buy Megaburn 120mg three times a day, orlistat inhibits dietary fat absorption by approximately 30%. It works by inhibiting pancreatic lipase, an enzyme that breaks down fat in the intestine. Without this enzyme, fat from the diet is excreted undigested and not absorbed by the body.