Why Understanding Orlistat's Mechanism Matters for Results
The Science Behind Orlistat Fat Blocking
Orlistat works by targeting lipase enzymes in your digestive system that break down dietary fat. When you take an orlistat capsule with a meal, it inhibits approximately one third of these enzymes, preventing them from breaking down dietary fat into smaller molecules that can be absorbed. This unabsorbed fat passes through your body naturally, effectively reducing the calories absorbed from your meal.
This mechanism makes orlistat fundamentally different from appetite suppressants or stimulants - it works locally in your gut rather than affecting your brain or central nervous system. The blocked fat isn't stored in your body; it's eliminated naturally within 24-48 hours.
Generic Orlistat vs Xenical - Same Mechanism, Different Prices
Both generic orlistat 120mg and branded Xenical 120mg contain identical active ingredients and work through exactly the same fat-blocking mechanism. Generic orlistat costs £29.69 for a 4-week supply with code EDM10, while Xenical costs £38.69 - a saving of £9 per month without compromising effectiveness.
For those preferring a lower-strength option, Alli 60mg works through the same mechanism but blocks a smaller proportion of dietary fat. At £26.09 for a 4-week supply with EDM10, it offers a gentler introduction to orlistat treatment.
Why the "One Third" Rule Matters for Your Results
Orlistat blocks approximately one third of dietary fat absorption - never 100%. This precision matters because it means the medication works best when combined with a structured lower-fat diet. Meals containing more than 15g fat may increase side effects as more unabsorbed fat passes through your system.
Understanding this mechanism helps you optimise results while minimising side effects. When you eat a balanced meal with appropriate fat content, orlistat works efficiently without causing significant gastrointestinal effects.
How Fast Does Orlistat Start Working?
Orlistat begins blocking fat absorption within hours of taking your first capsule. Each 120mg capsule works for the specific meal it's taken with, inhibiting lipase enzymes for approximately 6-8 hours. This is why timing matters - take one capsule immediately before, during, or up to one hour after each main meal containing fat.
Our 2-week starter pack (42 capsules) at £15.20 with EDM10 lets you experience how orlistat works without committing to longer treatment periods. Many patients notice the fat-blocking effects within the first few days of treatment.
Order Orlistat Today - Prescription Included
Now you understand exactly how orlistat blocks fat absorption, you can order with confidence. Our UK-licensed prescribers review your online assessment the same day, and if treatment is appropriate, we'll dispense and dispatch your orlistat capsules for next-day delivery.
Choose your supply length: 42 capsules (2 weeks) for £15.20, 84 capsules (4 weeks) for £29.69, 168 capsules (8 weeks) for £57.59, or 252 capsules (12 weeks) for £86.39 - all prices include 10% discount with code EDM10.


