Understanding Orlistat's Fat-Blocking Mechanism
How Orlistat Blocks Dietary Fat
Orlistat works through a scientifically proven mechanism that targets lipase enzymes in your digestive system. These enzymes normally break down dietary fat so it can be absorbed into your body. Orlistat inhibits these lipases, preventing approximately one third of the fat you eat from being digested and absorbed. The unabsorbed fat passes naturally through your body and is excreted, reducing the calories you absorb from dietary fat.
Why This Mechanism Makes Orlistat Effective
Unlike appetite suppressants that act on the brain, orlistat works locally in your gut where fat digestion occurs. This targeted approach means the medication isn't significantly absorbed into your bloodstream. The fat-blocking effect is directly proportional to your meal's fat content - the more fat in your meal, the more orlistat blocks. This is why following a reduced-calorie, lower-fat diet maximises results and minimises gastrointestinal side effects.
Orlistat 120mg: Prescription Strength Fat Blocking
Generic orlistat 120mg capsules provide maximum fat-blocking potential at the lowest cost. Take one capsule three times daily with each main meal containing fat. A 4-week supply (84 capsules) costs £32.99, or £29.69 with code EDM10. Following online clinical assessment, your prescription is reviewed by UK-licensed prescribers and dispensed by our GPhC-registered pharmacy in Leicester.
Xenical vs Generic Orlistat: Same Mechanism, Different Price
Xenical 120mg contains identical orlistat at the same dose as generic versions. Both block approximately one third of dietary fat through the same lipase inhibition mechanism. The clinical effect is equivalent - the key difference is cost. Xenical 4-week supply costs £42.99 (£38.69 with EDM10) compared to £29.69 for generic orlistat. Some patients prefer the branded option, while others choose generic orlistat for better value.
Alli 60mg: Lower Dose Fat Blocking
Alli contains half the dose of prescription-strength orlistat, blocking a smaller proportion of dietary fat. While less potent than 120mg versions, Alli 60mg may suit those preferring a lower-strength starting point. A 4-week supply costs £28.99 (£26.09 with EDM10). The same fat-blocking mechanism applies, just at reduced intensity.
Start Your Fat-Blocking Treatment Today
Understanding how orlistat blocks approximately one third of dietary fat absorption shows why it's clinically proven for weight management. Complete your online assessment today to access prescription-strength orlistat from £15.20 with EDM10. Our UK-licensed prescribers will review your suitability, and if appropriate, your treatment will be dispensed and delivered discreetly with next day delivery across the UK.


