Choose Your Orlistat Pack Size - Compare All Options
How Quickly Does Orlistat Work on Existing Fat?
Orlistat doesn't directly "burn" existing fat stores like some people expect. Instead, it blocks approximately one third of dietary fat from being absorbed in your gut, which creates a calorie deficit that may help your body use stored fat for energy over time. The medication works meal by meal - each 120mg capsule taken with food prevents about one third of that meal's fat content from being digested. This process begins within hours, but meaningful weight reduction typically develops over weeks and months when combined with a reduced-calorie, lower-fat diet.
2-Week Supply (42 Capsules) - £15.20 with EDM10
Our 2-week orlistat supply contains 42 capsules, providing a fortnight's treatment at the standard dose of three capsules daily with main meals. Generic orlistat costs £16.89 (£15.20 with discount code EDM10), while branded Xenical is £21.50 (£19.35 with EDM10). The 2-week option works well for first-time users wanting to assess tolerance, or as a top-up when transitioning between longer packs. However, orlistat's full benefits develop over several months, so most patients find longer supplies more convenient and cost-effective.
4-Week Supply (84 Capsules) - £29.69 with EDM10
Four-week packs contain 84 capsules and represent excellent value compared to fortnightly ordering. Generic orlistat 4-week supply costs £32.99 (£29.69 with EDM10) - saving £0.51 compared to buying two 2-week packs separately. Xenical 4-week costs £42.99 (£38.69 with EDM10). This popular pack size suits patients establishing their routine, offering a full month's treatment while maintaining flexibility. Alli 60mg is also available as a 4-week supply for £28.99 (£26.09 with EDM10) for those preferring the lower-strength option.
8-Week Supply (168 Capsules) - £57.59 with EDM10
Eight-week orlistat supplies provide exceptional convenience and value, containing 168 capsules for two months' treatment. Generic orlistat costs £63.99 (£57.59 with EDM10) - saving £2.38 compared to monthly ordering. Xenical 8-week costs £86.99 (£78.29 with EDM10). This pack size suits established patients who've confirmed good tolerance and want fewer delivery interruptions. The 8-week supply aligns well with clinical review intervals, allowing patients and prescribers to assess progress over a meaningful timeframe while maintaining cost efficiency.
12-Week Supply (252 Capsules) - £86.39 with EDM10
Our 12-week orlistat supply offers maximum value and convenience with 252 capsules for three months' treatment. Generic orlistat costs £95.99 (£86.39 with EDM10) - saving £2.68 compared to monthly ordering and £4.21 compared to fortnightly purchases. Xenical 12-week costs £128.99 (£116.09 with EDM10). This pack size suits committed patients following structured weight management programmes, providing uninterrupted treatment while maximising cost savings. Clinical guidance suggests orlistat treatment should be reviewed every 12 weeks, making this supply duration clinically appropriate.
Choosing Between Generic Orlistat and Branded Xenical
Both generic orlistat 120mg and branded Xenical 120mg contain identical active ingredients at the same dose, providing equivalent clinical effects. The key difference lies in cost - generic orlistat saves approximately £9-£30 per pack compared to Xenical, depending on pack size chosen. Some patients prefer branded Xenical for familiarity, while others choose generic orlistat for value. Your prescriber can advise which option suits your needs and budget. Both require the same clinical assessment and are supplied by our GPhC-registered pharmacy with identical safety standards.
