How Does Xenical Work and Which Strength to Choose?
How Xenical Works in Your Body
Xenical contains orlistat 120mg, which works by blocking lipase enzymes in your digestive system. This prevents approximately one third of the fat you eat from being absorbed, allowing it to pass naturally through your body. Unlike appetite suppressants that affect the brain, orlistat acts locally in the gut and is not significantly absorbed into your bloodstream. This mechanism may help reduce calorie intake from dietary fat when used alongside a reduced-calorie, lower-fat diet and regular physical activity.
Xenical vs Generic Orlistat - Same Effect, Different Price
Both Xenical and generic orlistat contain identical 120mg doses of the same active ingredient. The clinical effect is the same - both block approximately one third of dietary fat absorption. The key difference is cost. Generic orlistat 120mg costs £29.69 for 4 weeks (with EDM10), while branded Xenical costs £38.69 for the same period. Some patients prefer the branded option, whilst others choose generic orlistat for better value. All our stock is sourced through licensed UK pharmaceutical supply chains.
Current Stock and Pack Sizes Available
We currently have full stock of all orlistat products at our Leicester pharmacy. Generic orlistat 120mg is available in 2-week (£15.20), 4-week (£29.69), 8-week (£57.59), and 12-week (£86.39) supplies with code EDM10. Branded Xenical 120mg is stocked in the same pack sizes: 2-week (£19.35), 4-week (£38.69), 8-week (£78.29), and 12-week (£116.09) supplies. Alli 60mg offers a lower-strength option at £26.09 for 4 weeks with discount code EDM10.
Fast UK Prescription Process
Our online clinical assessment takes just minutes to complete. A UK-licensed prescriber reviews your medical history, current medications, and BMI to determine whether orlistat is clinically appropriate for you. Adults with a BMI of 30 or above, or 28 or above with weight-related health conditions like diabetes or high blood pressure, may be suitable candidates. Once approved, your prescription is dispensed by our GPhC-registered pharmacy team and dispatched for next day delivery in discreet packaging.
What to Expect When Taking Orlistat
Orlistat may cause gastrointestinal side effects, particularly when eating high-fat meals. Keeping your fat intake to approximately 15g per meal significantly reduces these effects. Most patients find side effects diminish as they adapt to a lower-fat diet. The medication works best when combined with a structured weight management programme including dietary changes and increased physical activity. A daily multivitamin is recommended, taken at bedtime at least 2 hours after your last orlistat dose.


