Why This Mechanism Makes Orlistat Effective
How Orlistat's Fat-Blocking Action Works
Orlistat works by inhibiting lipase enzymes in your digestive system. These enzymes normally break down dietary fat so it can be absorbed into your body. When orlistat blocks these enzymes, approximately one third of the fat you eat cannot be digested or absorbed. This unabsorbed fat passes naturally through your body, reducing the calories you absorb from meals. The mechanism is entirely local to your gut - orlistat isn't absorbed into your bloodstream in significant amounts, which means it doesn't affect your brain or central nervous system like stimulant-based treatments.
Why "Approximately One Third" Matters
Understanding that orlistat blocks approximately one third of dietary fat - not all fat - is crucial for realistic expectations. This partial blocking means you still absorb most nutrients normally while reducing fat-based calories. The remaining two thirds of dietary fat is processed as usual, ensuring your body receives essential fat-soluble vitamins with proper supplementation. This balanced approach explains why orlistat requires a reduced-calorie, lower-fat diet to work effectively.
Generic Orlistat vs Xenical - Identical Mechanism
Both generic orlistat 120mg and branded Xenical 120mg contain exactly the same active ingredient at the same dose. The fat-blocking mechanism is identical between products. Generic orlistat offers significant savings - a 4-week supply costs £32.99 (£29.69 with EDM10) compared to Xenical at £42.99 (£38.69 with EDM10). Some patients prefer branded Xenical while others choose generic orlistat for value, but the clinical effect remains the same.
Why This Mechanism Requires Prescription Oversight
Orlistat's fat-blocking mechanism can affect absorption of fat-soluble vitamins and interact with certain medications. This is why 120mg strength requires prescription-only access following clinical assessment. Our UK-licensed prescribers review your medical history, current medications, and weight management goals to ensure orlistat's mechanism will work safely for you. The online consultation replaces a GP appointment - your prescription is included in the price.
Maximising Results from Orlistat's Mechanism
To optimise orlistat's fat-blocking action, keep meals to approximately 15g fat each. Higher-fat meals increase gastrointestinal side effects as more unabsorbed fat passes through your system. The mechanism works best with consistent use - take one 120mg capsule with each main meal containing fat, up to three times daily. If you skip a meal or eat a fat-free meal, you can skip that dose.
Available Strengths and Supply Options
Orlistat 120mg and Xenical 120mg offer the full prescription strength for maximum fat-blocking effect. We stock multiple supply durations: 2-week (42 capsules) from £16.89, 4-week (84 capsules) from £32.99, 8-week (168 capsules) from £63.99, and 12-week (252 capsules) from £95.99. Alli 60mg provides a lower-strength option at half the dose. All prices include 10% discount with code EDM10.
Order Today - Proven Fat-Blocking Mechanism
Now you understand how orlistat's fat-blocking mechanism works, you can make an informed decision about treatment. Our GPhC-registered pharmacy dispenses genuine orlistat with next-day delivery across the UK. Complete your online clinical assessment today - if approved, your prescription orlistat will be dispensed immediately and delivered discreetly to your address.
