Why Understanding Orlistat's Mechanism Matters
How Orlistat Tablets Work - The Scientific Mechanism
Orlistat works by inhibiting lipase enzymes in your digestive system. These enzymes are responsible for breaking down dietary fat so it can be absorbed into your body. When orlistat blocks these lipases, approximately one third of the fat you eat cannot be digested or absorbed. This unabsorbed fat passes naturally through your digestive system and is eliminated from your body.
This mechanism is why orlistat is classified as a lipase inhibitor rather than an appetite suppressant. It works locally in your gut, not in your brain, making it fundamentally different from stimulant-based weight loss treatments. The fact that orlistat acts directly on fat absorption is proof of its targeted approach to weight management.
Why Choose Orlistat 120mg Over Lower Strengths
Prescription-strength orlistat 120mg provides maximum fat-blocking effectiveness. Our generic orlistat 120mg costs just £29.69 per month with code EDM10, while branded Xenical 120mg is £38.69 monthly. Both contain identical active ingredients and work through the same proven mechanism. Alli 60mg contains half the dose, blocking a smaller proportion of dietary fat.
The 120mg prescription strength is designed for adults with a BMI of 30 kg/m² or above, or 28 kg/m² with weight-related health conditions. Following an online clinical assessment by our UK-licensed prescribers, you can access prescription-strength orlistat without a GP appointment.
What Happens When You Take Orlistat
When you take one 120mg capsule with each main meal containing fat, orlistat begins working immediately in your digestive system. The medication blocks approximately one third of dietary fat from being absorbed, while the remaining two thirds is processed normally. This is why maintaining a lower-fat diet is essential - it minimises gastrointestinal side effects while maximising the medication's effectiveness.
The unabsorbed fat that orlistat blocks would normally contribute approximately 9 calories per gram to your daily intake. By preventing this absorption, orlistat can support a calorie deficit when combined with a reduced-calorie, lower-fat diet and increased physical activity.
Orlistat vs Xenical - Same Mechanism, Different Price
Both generic orlistat 120mg and branded Xenical 120mg work through identical mechanisms. They contain the same active ingredient at the same dose and block approximately one third of dietary fat absorption equally effectively. The primary difference is cost - generic orlistat saves approximately £9 per month compared to Xenical.
Whether you choose orlistat 120mg (£63.99 for 8 weeks, £57.59 with EDM10) or Xenical 120mg (£86.99 for 8 weeks, £78.29 with EDM10), you receive the same proven fat-blocking mechanism. Both require prescription following clinical assessment and are dispensed by our GPhC-registered pharmacy.
Order Orlistat Today - Proven Mechanism, Proven Results
Now you understand how orlistat works - blocking approximately one third of dietary fat through targeted lipase inhibition - you can make an informed treatment decision. Our online clinical assessment takes minutes to complete, and UK-licensed prescribers review every application. With next day delivery and 10% off every order using code EDM10, accessing prescription orlistat has never been more convenient.
Choose from orlistat 120mg (4 weeks £29.69), Xenical 120mg (4 weeks £38.69), or Alli 60mg (4 weeks £26.09) with code EDM10. All prices include prescription and delivery from our Leicester-based GPhC-registered pharmacy. Start your weight management journey with proven fat-blocking technology today.


