Why Understanding Orlistat's Mechanism Matters
How Orlistat Blocks Fat Absorption
Orlistat works by inhibiting lipase enzymes in your digestive system. These enzymes normally break down dietary fat so your body can absorb it. 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 your calorie intake from dietary fat.
Why Orlistat Isn't Suitable During Pregnancy
Orlistat is contraindicated during pregnancy and breastfeeding. Weight loss medications can affect nutrient absorption, including fat-soluble vitamins (A, D, E, K) essential for foetal development. Our UK-licensed prescribers always assess pregnancy status during consultation. If you're pregnant, planning pregnancy, or breastfeeding, alternative weight management strategies should be discussed with your healthcare provider.
Orlistat vs Xenical: Same Mechanism, Different Prices
Both generic orlistat 120mg and branded Xenical 120mg contain identical active ingredients and work through the same fat-blocking mechanism. Generic orlistat offers significant savings - 4 weeks costs £32.99 (£29.69 with EDM10) compared to Xenical at £42.99 (£38.69 with EDM10). The 12-week supply shows even greater value: orlistat at £95.99 (£86.39 with EDM10) versus Xenical at £128.99 (£116.09 with EDM10).
Clinical Assessment Process
Understanding how orlistat works helps explain why clinical assessment is essential. Our prescribers evaluate your BMI, medical history, current medications, and weight-related health conditions. Orlistat may be suitable for adults with BMI 30+ or BMI 28+ with weight-related conditions like diabetes or hypertension. Complete your online consultation today for prescriber review.
Maximising Orlistat's Fat-Blocking Effect
Knowing orlistat blocks approximately one third of dietary fat helps you optimise treatment. Keep meals to roughly 15g fat each to minimise side effects while maintaining effectiveness. Take one 120mg capsule with each main meal containing fat, up to three times daily. The medication works best alongside a reduced-calorie, lower-fat diet and regular physical activity.
Order Your Orlistat Treatment Today
Now you understand how orlistat's fat-blocking mechanism works and why pregnancy assessment matters, start your treatment journey. Choose from 2-week starter packs or 12-week supplies with automatic 10% savings using code EDM10. All orders include prescription, dispensing by our GPhC-registered Leicester pharmacy, and next-day tracked delivery across the UK.


