Drug Overview and Approval: Xenical (Orlistat) Xenical contains Orlistat, a clinically proven medication used for long term obesity management. It works by blocking gastric and pancreatic lipases, the enzymes responsible for breaking down Subcutaneous Injection: What It Is and How to Give One How Ozempic Semaglutide Works Understanding your medicines helps you make better health decisions. Here's a simple explanation of how Semaglutide supports diabetes and weight management. Controls Appetite Semaglutide works on brain signals Low Dose Naltrexone: How Long Does It Take to Work?