Does Alli Orlistat Really Work? Orlistat vs Xenical

pricing for mounjaro and wegovy weight loss

Confused about orlistat options? Generic orlistat 120mg and branded Xenical 120mg contain identical active ingredients but differ significantly in price. Orlistat costs from £15.20 (with EDM10), while Xenical starts at £19.35 - both requiring prescription following clinical assessment. Alli 60mg offers half-strength treatment at £26.09. All three work by blocking approximately one third of dietary fat absorption when used alongside a reduced-calorie, lower-fat diet. Get 10% off every order with code EDM10. Compare prices and choose your treatment today through our regulated UK online pharmacy.

  • Same clinical effect - generic orlistat saves £9+ monthly vs Xenical
  • All strengths available - 60mg Alli or prescription 120mg options
  • Fast UK delivery - next day dispatch from GPhC-registered pharmacy
  • 10% discount confirmed - code EDM10 on every order, new and returning customers
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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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Orlistat vs Xenical vs Alli: Which Should You Buy?

Reviewed by Mostafa Damghani · 03/07/2026

Generic Orlistat vs Branded Xenical: The Key Differences

Both orlistat 120mg and Xenical 120mg contain identical active ingredients at the same dose, making them clinically equivalent. The primary difference lies in cost and branding. Generic orlistat offers the same fat-blocking mechanism at a significantly lower price point, while Xenical represents the original branded version manufactured by Roche.

Price comparison shows substantial savings with generic orlistat. A 4-week supply costs £29.69 with EDM10 compared to Xenical at £38.69 - saving you £9 monthly. Over a 12-week treatment course, choosing orlistat over Xenical saves £29.70 with our discount code.

How All Three Options Work

Whether you choose orlistat, Xenical, or Alli, the mechanism remains the same. Each works by inhibiting lipase enzymes in your digestive system, blocking approximately one third of dietary fat from being absorbed. This unabsorbed fat passes naturally through your body, potentially supporting weight management when used alongside a reduced-calorie, lower-fat diet.

The 120mg prescription strength (orlistat and Xenical) blocks more dietary fat than 60mg Alli, but requires clinical assessment and prescriber approval. Alli at half-strength may produce milder gastrointestinal side effects while still contributing to your weight management programme.

Treatment Costs and Value Comparison

Our pricing structure rewards longer treatment courses across all options. Orlistat 120mg ranges from £15.20 (2-week supply) to £86.39 (12-week supply) with EDM10. Xenical pricing starts at £19.35, reaching £116.09 for 12 weeks. Alli costs £26.09 for 4 weeks up to £116.99 for 12 weeks with discount applied.

Many patients prefer generic orlistat for its cost-effectiveness without compromising clinical outcomes. Others choose Xenical for brand preference, while Alli appeals to those seeking a gentler starting point at lower strength.

Prescription Process and Eligibility

Both orlistat and Xenical require prescription following online clinical assessment by UK-licensed prescribers. Our process involves completing a health questionnaire covering your medical history, current medications, and BMI information. Treatment may be suitable for adults with BMI of 30 or above, or 28+ with weight-related health conditions like type 2 diabetes or high blood pressure.

The online consultation replaces traditional GP appointments, providing faster access to treatment. All prescriptions are reviewed individually, with treatment approved only where clinically appropriate for your circumstances.

Managing Side Effects Across All Options

Gastrointestinal side effects remain the most common experience with all orlistat medicines, directly linked to dietary fat intake. Keeping meals to approximately 15g fat each significantly reduces oily stools, urgent bowel movements, and anal leakage. The 60mg Alli typically produces milder effects than 120mg prescription options.

These effects indicate the medicine is working - blocking dietary fat absorption. Most patients find side effects decrease over time as diet adapts to lower fat intake patterns.

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Once you complete a short online assessment, you’ll be able to choose your preferred treatment and quantity from a list of safe, medically approved options tailored to you.

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FAQs

Frequently asked questions

Still have questions?

Our UK pharmacists are happy to help. There is no charge and no obligation.

  • Mon–Fri, 9am–5pm
Does Alli orlistat really work compared to prescription strength?
Alli 60mg works by the same mechanism as prescription orlistat, blocking approximately one third of dietary fat absorption, but at half the dose. This typically means gentler effects but potentially slower progress. Choose based on your preference for starting strength after consulting our prescribers.
How much can I save choosing generic orlistat over Xenical?
Generic orlistat costs £29.69 for 4 weeks with EDM10, while Xenical costs £38.69 - saving you £9 monthly. Over 12 weeks, you save £29.70 choosing generic orlistat while getting identical clinical effects.
Can I order all three options through your online pharmacy?
Yes, we supply orlistat 120mg, Xenical 120mg, and Alli 60mg. Prescription strengths require clinical assessment first, while all orders qualify for 10% off with code EDM10 and next day delivery across the UK.
Is your online prescription service legitimate and safe?
Absolutely. EverydayMeds operates as a GPhC-registered pharmacy based in Leicester, with all prescriptions reviewed by UK-licensed healthcare professionals. We follow MHRA regulations and supply genuine medicines through licensed pharmaceutical channels.
How quickly can I receive my orlistat medicine?
Following prescriber approval, we dispatch orders next day via tracked delivery. Most UK addresses receive medicines within 24-48 hours of prescription approval, with discreet packaging protecting your privacy throughout delivery.