Why Understanding Orlistat's Mechanism Matters
How Orlistat 120mg Works in Your Body
Orlistat works through a precise mechanism that targets fat absorption in your digestive system. As a lipase inhibitor, it blocks the enzymes responsible for breaking down dietary fat. When these lipase enzymes are inhibited, approximately one third of the fat you eat cannot be digested or absorbed into your body. This unabsorbed fat passes naturally through your digestive system and is excreted.
The 120mg dose represents the highest strength available and requires a prescription following clinical assessment. Generic orlistat 120mg costs £32.99 for 84 capsules (4 weeks), reduced to £29.69 with EDM10. Branded Xenical 120mg offers the identical mechanism at £42.99 for 4 weeks (£38.69 with EDM10).
Why This Mechanism Proves Effectiveness
Unlike treatments that work in the brain, orlistat acts locally in your gut without significant absorption into the bloodstream. This targeted approach means the mechanism is direct and measurable. The approximately one third fat-blocking effect is consistent and predictable when taken as prescribed - one 120mg capsule with each main meal containing fat.
This proven mechanism supports weight management when combined with a reduced-calorie, lower-fat diet. The science is straightforward: fewer calories absorbed from dietary fat may contribute to weight reduction over time.
Orlistat vs Xenical vs Alli: Same Mechanism, Different Doses
All three products work through identical fat-blocking mechanisms but at different strengths. Orlistat 120mg and Xenical 120mg contain the same active ingredient at the highest available dose. Alli 60mg provides half the strength for those preferring a lower-dose option.
Generic orlistat 120mg offers significant savings - a 12-week supply costs £95.99 (£86.39 with EDM10) compared to £128.99 for branded Xenical (£116.09 with EDM10). The mechanism and clinical effect remain identical regardless of generic or branded choice.
Maximising the Fat-Blocking Effect
Understanding the mechanism helps optimise results. Orlistat blocks approximately one third of dietary fat per meal, so spreading your daily fat intake evenly across three main meals maximises effectiveness. Keeping meals to roughly 15g fat each also minimises gastrointestinal side effects.
The fat-blocking mechanism requires dietary fat to work - if a meal contains no fat, you can skip that dose. This flexibility makes orlistat practical for real-world use while maintaining its proven mechanism of action.
Order Orlistat Online with Clinical Assessment
Now you understand how orlistat's fat-blocking mechanism works, you can order confidently through our regulated online service. Complete a clinical assessment reviewed by UK-licensed prescribers, with prescription orlistat dispensed by our GPhC-registered Leicester pharmacy.
Choose from 2-week to 12-week supplies with 10% off every order using code EDM10. Next day delivery ensures fast, discreet access to this proven weight management medication.
