Understanding Orlistat's Mechanism - Ready to Order?
How Orlistat Blocks Fat Absorption
Orlistat works through a proven mechanism that targets lipase enzymes in your digestive system. These enzymes normally break down dietary fat so your body can absorb it. When you take orlistat 120mg capsules, the medication inhibits approximately one third of these lipase enzymes, preventing roughly one third of the fat you eat from being digested and absorbed. This unabsorbed fat passes naturally through your body, reducing the calories you absorb from dietary fat.
Why This Mechanism Makes Orlistat Effective
Unlike appetite suppressants that work in the brain, orlistat acts locally in your gut and isn't significantly absorbed into your bloodstream. This targeted approach means the medication directly reduces calorie intake from dietary fat when used alongside a reduced-calorie, lower-fat diet. The fact that orlistat blocks approximately one third of dietary fat absorption has been demonstrated in clinical studies, making it a reliable option for weight management support.
Orlistat vs Xenical vs Alli - Same Mechanism, Different Strengths
All three products work through the same fat-blocking mechanism. Generic Orlistat 120mg costs £32.99 (£29.69 with EDM10) for a 4-week supply, while branded Xenical 120mg costs £42.99 (£38.69 with EDM10) for the same period. Both contain identical 120mg doses and block the same amount of fat. Alli 60mg at half strength blocks a smaller proportion of dietary fat but uses the same lipase-inhibiting mechanism.
What to Expect When Orlistat Starts Working
Because orlistat blocks approximately one third of dietary fat, you may notice gastrointestinal effects that actually indicate the medication is working. Oily stools, increased bowel movements, or oily spotting occur when unabsorbed fat passes through your system. These effects are more noticeable with high-fat meals and reduce significantly when you keep meals to approximately 15g fat each, as recommended.
Order Your Prescription Orlistat Today
Now you understand how orlistat's fat-blocking mechanism works, you can make an informed choice about treatment. Our 8-week supply of Orlistat 120mg costs £63.99 (£57.59 with EDM10), while the 12-week supply offers better value at £95.99 (£86.39 with EDM10). Complete our online clinical assessment today for UK prescriber review and next day delivery from our GPhC-registered Leicester pharmacy.


