Why Understanding the Mechanism Helps You Choose
How Orlistat's Fat-Blocking Mechanism Works
Orlistat works by inhibiting lipase enzymes in your digestive system that break down dietary fat. When these enzymes are blocked, 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 mechanism is the same whether you choose generic orlistat 120mg (£29.69 for 4 weeks with EDM10) or branded Xenical 120mg (£38.69 for 4 weeks with EDM10).
Why This Mechanism Proves Effectiveness
Unlike appetite suppressants that work in the brain, orlistat's local action in the gut provides direct, measurable results. You can see the medication working through the presence of unabsorbed fat in stools - particularly if you eat high-fat meals. This mechanism-based proof means you know the medication is actively blocking fat absorption. The clinical effect is identical between generic orlistat and Xenical because they contain exactly the same active ingredient at the same 120mg dose.
Orlistat vs Xenical: Same Mechanism, Different Price
The fat-blocking mechanism is identical in both products. Orlistat 120mg and Xenical 120mg work by blocking approximately one third of dietary fat absorption through the same lipase inhibition process. The only meaningful difference is cost - choosing generic orlistat saves £9 per month compared to Xenical. Both require the same clinical assessment by our UK-licensed prescribers and both are dispensed by our GPhC-registered pharmacy in Leicester.
Optimising the Fat-Blocking Effect
Understanding how orlistat works helps you maximise results while minimising side effects. Keep fat intake to approximately 15g per meal (30% of daily calories from fat) to work with the mechanism effectively. Higher fat meals increase side effects because more unabsorbed fat passes through your system. The medication works best alongside a reduced-calorie, lower-fat diet and regular physical activity. Consider our 8-week supply (£57.59 with EDM10) or 12-week supply (£86.39 with EDM10) for sustained weight management.
Start Your Treatment Today
Now you understand exactly how orlistat blocks approximately one third of dietary fat absorption, you can make an informed choice between orlistat and Xenical. Complete our online clinical assessment to have your suitability reviewed by a UK-licensed prescriber. If approved, your prescription orlistat will be dispensed by our GPhC-registered pharmacy and delivered discreetly with next day delivery across the UK.
