Why Orlistat's Mechanism Makes It Effective
How Orlistat Blocks Fat Absorption
Orlistat works by inhibiting lipase enzymes in your digestive system that normally break down dietary fat. When these enzymes are blocked, approximately one third of the fat you consume cannot be digested or absorbed into your body. This unabsorbed fat passes naturally through your digestive system and is excreted, effectively reducing your calorie intake from fat. Unlike appetite suppressants that work on the brain, orlistat acts locally in the gut and is not absorbed into your bloodstream in significant amounts.
Clinical Evidence Behind the Mechanism
The lipase inhibition mechanism has been extensively studied and proven effective in clinical trials. Generic orlistat 120mg and branded Xenical 120mg contain identical active ingredients, providing the same fat-blocking action. A 4-week supply of generic orlistat costs £32.99 (£29.69 with EDM10), while Xenical costs £42.99 (£38.69 with EDM10). Both require prescription following clinical assessment by our UK-licensed prescribers.
What This Means for Your Weight Management
By blocking approximately one third of dietary fat absorption, orlistat can significantly reduce calorie intake when combined with a reduced-calorie, lower-fat diet. This mechanism works best when you limit fat intake to around 15g per meal, which also minimises gastrointestinal side effects. The remaining two thirds of dietary fat is still absorbed normally, so maintaining a lower-fat diet is essential for optimal results and comfort.
Prescription Strength vs Lower-Strength Options
Orlistat 120mg (generic) and Xenical 120mg provide maximum fat-blocking effectiveness, requiring prescription following online clinical assessment. Alli 60mg offers half the dose at £28.99 for 4 weeks (£26.09 with EDM10), providing a lower-strength alternative. All three products work through the same proven mechanism—the difference lies in potency and regulatory status.
Getting Started with Proven Fat-Blocking
Our GPhC-registered pharmacy supplies orlistat following successful online consultation with UK-licensed prescribers. Choose from 2-week starter packs (orlistat £16.89, Xenical £21.50) through to 12-week supplies (orlistat £95.99, Xenical £128.99). Save 10% with code EDM10 on every order. Next-day delivery available across the UK with discreet packaging. Start your consultation today to access orlistat's proven fat-blocking mechanism.
