How Orlistat Works: Which Is Better Alli or Orlistat?

pricing for mounjaro and wegovy weight loss

Orlistat works by blocking approximately one third of dietary fat absorption in your gut, preventing these calories from being absorbed into your body. Understanding this proven mechanism helps explain why orlistat 120mg and Xenical 120mg are clinically equivalent prescription treatments, while Alli 60mg offers half the dose. Generic orlistat 120mg costs just £29.69 for 4 weeks with code EDM10, compared to £38.69 for branded Xenical. Following online clinical assessment by our UK-licensed prescribers, you can access this fat-blocking treatment through our GPhC-registered Leicester pharmacy with next day delivery.

  • Blocks approximately one third of dietary fat from absorption
  • Same active ingredient in orlistat 120mg and Xenical 120mg
  • Save £9 monthly choosing generic over branded version
  • Next day delivery from GPhC-registered UK pharmacy
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pricing for mounjaro and wegovy weight loss

*Pricing shown in some areas of this page may not be up to date. Please refer to the “Our Pricing Table” or the price shown after your consultation for the latest live pricing.

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Why Orlistat's Mechanism Makes It Effective

How Orlistat Blocks Fat Absorption

Orlistat works by inhibiting lipase enzymes in your digestive system that normally break down dietary fat. When these enzymes are blocked, approximately one third of the fat you eat cannot be digested or absorbed into your body. This unabsorbed fat passes naturally through your system, reducing the calories you absorb from meals. The mechanism is simple but clinically proven - by preventing fat absorption, orlistat helps create the calorie deficit needed for weight loss alongside a reduced-calorie, lower-fat diet.

Orlistat vs Xenical: Identical Fat-Blocking Action

Both orlistat 120mg and Xenical 120mg contain exactly the same active ingredient at the same dose, meaning they block the same amount of dietary fat through an identical mechanism. The only difference is cost - generic orlistat costs £32.99 for 4 weeks (£29.69 with EDM10) while branded Xenical costs £42.99 (£38.69 with EDM10). This saves you approximately £9 monthly by choosing generic orlistat without compromising on clinical effectiveness. Both require the same online clinical assessment and prescription from our UK-licensed healthcare professionals.

Alli 60mg: Half-Strength Fat Blocking

Alli contains 60mg orlistat - exactly half the prescription dose. This lower strength blocks a smaller proportion of dietary fat compared to the 120mg prescription versions. At £49.49 for 8 weeks with code EDM10, Alli offers a gentler introduction to orlistat treatment. However, the reduced dose means potentially slower progress compared to prescription-strength orlistat or Xenical. Your choice depends on whether you prefer starting with lower-strength treatment or accessing the full clinical dose through our online prescription service.

Why Fat Blocking Works for Weight Management

Fat contains 9 calories per gram - more than double the calories in carbohydrates or protein. By blocking approximately one third of dietary fat absorption, orlistat significantly reduces calorie intake from high-fat meals. This creates a calorie deficit essential for weight loss when combined with a structured diet plan. The mechanism also encourages healthier eating habits - keeping meals low in fat minimises the gastrointestinal side effects that occur when unabsorbed fat passes through your system.

Order Orlistat Online Today

Now you understand how orlistat's fat-blocking mechanism works, you can choose the right option for your weight management goals. Complete our online clinical assessment to access prescription-strength orlistat 120mg from £29.69 for 4 weeks, or select branded Xenical from £38.69. Our GPhC-registered pharmacy dispenses your treatment following prescriber approval, with discreet next day delivery across the UK. Use code EDM10 for 10% off every order.

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