Choose Your Orlistat Pack Size: 2-12 Week Supply Options
How Quickly Does Xenical Work? Understanding Timeline & Pack Sizes
Xenical and generic Orlistat work by blocking approximately one third of dietary fat absorption. The medication starts working with your first dose, but noticeable weight management support typically develops over 2-4 weeks when combined with a reduced-calorie, lower-fat diet. Your choice of pack size depends on your treatment timeline and budget preferences.
2-Week Supply: Trial Period Option
Perfect for those starting treatment, our 2-week supplies contain 42 capsules. Generic Orlistat costs £16.89 (£15.20 with EDM10), whilst branded Xenical is £21.50 (£19.35 with EDM10). This shorter supply allows you to assess tolerance and effectiveness before committing to longer treatment periods. Following clinical assessment by our UK-licensed prescribers, your 2-week supply can be dispatched with next day delivery.
4-Week Supply: Popular Monthly Option
Our 4-week packs contain 84 capsules for one month's treatment. Generic Orlistat costs £32.99 (£29.69 with EDM10), offering excellent value versus the branded option at £42.99 (£38.69 with EDM10). Most patients notice their body adapting to the medication within this timeframe when following a lower-fat diet alongside treatment.
8-Week Supply: Extended Treatment Savings
For committed weight management, 8-week supplies (168 capsules) offer significant savings. Generic Orlistat costs £63.99 (£57.59 with EDM10) compared to Xenical at £86.99 (£78.29 with EDM10). This duration allows you to establish effective dietary patterns whilst the medication supports fat absorption reduction over a sustained period.
12-Week Supply: Maximum Value Option
Our 12-week supplies (252 capsules) provide the best value for long-term treatment. Generic Orlistat costs £95.99 (£86.39 with EDM10), saving you £42.60 compared to buying six 2-week packs. Branded Xenical is available at £128.99 (£116.09 with EDM10). This extended supply supports consistent treatment without frequent reordering.
Alli 60mg: Lower Strength Alternative
Alli contains half the dose of prescription Orlistat. Available in 4-week (£28.99/£26.09), 8-week (£54.99/£49.49), and 12-week supplies (£129.99/£116.99 with EDM10). This option may be suitable for those preferring lower-dose treatment with typically milder side effects.
Order Your Supply Today
Complete our online clinical assessment to determine your suitability for Orlistat treatment. Our UK-licensed prescribers will review your information and, if appropriate, issue your prescription. All medications are dispensed by our GPhC-registered pharmacy and delivered discreetly across the UK. Use code EDM10 for 10% off every order.


