Xenical

Xenical
Prescription Only Medicine (POM)
  • Prescription-strength weight loss treatment
  • Avg. 6.1kg weight loss in a year
  • Longer treatment courses available
  • Fully inspected and regulated service
  • Next day delivery available

 

Xenical is a prescription-only weight loss medication containing 120mg of orlistat per capsule. Complete a quick online assessment to help our UK-registered prescribers confirm it’s safe and effective for you.

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Product information: Xenical

What is Xenical?

Xenical is a prescription weight loss medication containing 120mg of the active ingredient orlistat. When paired with a low-fat diet and exercise, it’s used to treat adults with obesity or who are overweight and have a weight-related health condition, such as high blood pressure. Xenical is the branded version of the generic Orlistat. 

 

Xenical works by stopping digestive enzymes in your gut from breaking down around 30% of the fat you eat, helping people lose over 5% of their starting body weight in 12 weeks. Studies show the weight loss from Xenical provides other health benefits, including lowering blood cholesterol.

 

Like many medications, Xenical may not be suitable for everyone, including people with cholestasis, a diagnosed malabsorption condition, or a kidney condition. Your specialist prescriber reviews your medical profile to ensure Xenical is a clinically safe and effective option for you.

How it works

1

Online consultation

Fill out a simple online form with no GP or pharmacy visits.

2

Clinical review

A UK-registered pharmacist reviews your details to decide the best treatment option for you.

3

Receive your prescription

If prescribed, you can get express delivery in discreet packaging right to your doorstep.

Delivery Information

Royal Mail Tracked 24

1–2 working days
£3.99

Royal Mail Special Delivery

Guaranteed next working day delivery
£8.95

Discreet Packaging

All orders are sent in plain, unmarked packaging with no indication of the contents. Your privacy is our priority.

Xenical for weight loss

Xenical may be a suitable weight loss aid if you:

 

  • Have a body mass index (BMI) of 30 or higher
  • Have a BMI of 28 or higher and a weight-related condition, such as high blood pressure

 

Xenical is one possible treatment option for weight loss and maintenance. Our expert prescribers will recommend the most appropriate treatment based on your medical profile, lifestyle and treatment goals. 

 

During your online consultation, we’ll ask you about:

 

  • Your BMI (if you know it) or your height and weight to calculate your BMI
  • Any medical conditions you have, such as cholestasis, kidney disease or high blood pressure
  • Any allergies
  • Current medications, such as blood-thinning medication, ciclosporin, or amiodarone
  • If you’re pregnant or breastfeeding

 

This will help your prescriber find a treatment that’s safe and effective for you. Weight loss medications are only recommended when clinically appropriate and must be used alongside lifestyle changes to ensure long-term, sustainable results.

What are the side effects of Xenical?

Like all treatments, Xenical may cause side effects. While some side effects can be serious and require urgent medical help, most side effects are mild and manageable with a diet low in fats, such as:

 

  • Fatty and oily stools
  • Stomach pain 
  • Gas
  • Changes to bathroom habits, such as urgently needing the bathroom, diarrhoea, and constipation
  • Oily discharge

 

You may get some of these side effects or you may not get any side effects at all. Other common side effects include headaches, fatigue, low blood sugar levels and bloating for people with type 2 diabetes, and irregular menstrual cycles.

 

If you get a severe allergic reaction (also called anaphylaxis) from Xenical, stop taking it and seek urgent medical help. Signs include difficulty breathing, a rash, swelling, and a fast heartbeat. 

 

Severe side effects include rectal bleeding, inflammation of the gut, liver or pancreas, skin blisters, and calcium build-up in the body. It’s unclear how common these side effects are. If you notice any changes to your health, speak to your doctor as soon as possible.

 

For more information about Xenical side effects, consult the patient information leaflet in the box or speak to your prescriber.

Why choose My Chemist Plus online pharmacy?

“Excellent” rated pharmacy

Trusted by over 30,000 patients across the UK for a range of conditions.

Experienced UK-registered prescribers

With decades of experience, we prioritise responsible prescribing you can rely on.

Two-minute consultation

Our simple online form takes minutes to fill out and we’ll review it that day if completed before 3pm.

UK-wide express delivery

Discreet, fast delivery across the UK so you can access treatment without delay.

Start your online consultation for Xenical tablets

Simply fill out our simple medical form and our experienced prescribers will help you find the right treatments for you.

Start your Consultation

Frequently asked questions about Xenical

To ensure Xenical works effectively and reduce treatment-related side effects, it’s recommended you:

  • Take one Xenical capsule with water immediately before, during or up to one hour after each main meal – do not take more than three capsules a day.
  • Eat a balanced diet low with plenty of fruits and vegetables.
  • Aim for 30% of your total daily calories to come from fat spread across three main meals – this will help minimise gastrointestinal side effects.
  • Only use Xenical when your meal contains fats, such as oil or dairy. 
  • Increase your physical activity, such as going to the gym, picking up a sport, or walking or cycling instead of driving where possible.
  • Take a nightly multivitamin if advised by your prescriber as some vitamins rely on fat to be absorbed, such as vitamins A, D, E and K.

Weight management is a personal, long-term journey rather than a quick fix. Xenical is a supportive tool designed to work alongside realistic, sustainable lifestyle changes that fit naturally into your everyday routine. Building small, consistent habits over time can help support lasting success and overall wellbeing.

There’s no difference between Orlistat and Xenical. They’re both an oral weight loss drug containing 120mg of orlistat. Orlistat is simply the generic version, whereas Xenical is the branded version.

Yes, Xenical is clinically proven to support weight loss when used alongside a reduced-calorie, lower-fat diet and physical activity. Clinical trials show patients lost an average 6.1kg of weight after a year of Xenical treatment, compared to an average 2.4kg weight loss in patients who did not take Xenical.

No, Xenical does not reduce appetite as it’s a type of drug called a lipase inhibitor. Lipase inhibitors do not affect hunger or appetite. Instead, they work locally in the gut to stop enzymes (called lipase) from digesting fat you’ve eaten in a meal, supporting weight loss. 

 

Other weight loss medications are able to reduce appetite and help control feelings of hunger, such as Mounjaro and Wegovy.

Xenical is a lipase inhibitor, which stops digestive enzymes in your gut (called lipases) from breaking down dietary fat. The undigested fat passes out of your body through bowel movements. Dietary fat is any food you eat containing fat. 

Xenical stops around a third of the fat you eat from being digested and absorbed. When paired with a controlled calorie diet and more exercise, it can support up to 6.1kg of weight loss in a year.

To help Xenical work effectively, you should take one Xenical capsule just before, during, or up to one hour after a meal containing fats. If your meal does not contain any fat, such as oil-based sauces or dairy, you do not need to take a Xenical with it. It’s a good idea to check the nutrition label if possible. 

You can take Xenical up to three times a day with a main meal. If you take more than this, speak to your prescriber for medical advice. 

If you forget to take a Xenical capsule with your meal, you can:

  • Take the missed dose if it’s been less than an hour since your meal.
  • Skip the missed dose if it’s been more than an hour since your meal. Take your next dose as normal with your next meal.

How much Xenical costs depends on the length of your treatment course. At My Chemist Plus, a single pack of 84 capsules (a 28-day supply) costs £XX. For longer treatment plans, there are also multi-pack options available starting from £XX. 

Please note, you can only order Xenical online in the UK after a medical consultation with a certified prescriber to ensure treatment is suitable for you. 

My Chemist Plus is certified and regulated by the General Pharmaceutical Council (GPhC) and all of our prescribers have years of specialist prescribing experience. Complete our online health assessment form to start your consultation today.

Yes, Xenical is a prescription-only weight loss medication. You must complete a medical assessment with a UK-registered prescriber to make sure Xenical is safe and appropriate for you. 

Fill out a simple health questionnaire to start your consultation for a Xenical prescription with an experienced prescriber at My Chemist Plus.

When paired with a lower-fat, reduced-calorie diet and regular exercise, clinical studies show the key benefits of Xenical include:

  • Less dietary fat absorption: Xenical stops your gut from absorbing roughly 30% of the fat you eat
  • Greater weight loss: May help you lose more weight than diet and exercise alone, with clinical trials showing more patients lost 5% or more of their starting body weight after 12 weeks than the placebo group
  • Better overall health: Weight loss from Xenical can also have a positive knock-on effect on your health, including lowering total cholesterol levels and reducing waist circumference

If you accidentally take a double dose of Xenical, it’s unlikely to cause issues. But, it’s a good idea to speak to your prescriber or call 111 for medical advice.

It’s difficult to say which treatment is better for weight loss as the right choice for you depends on your health history, dietary and lifestyle habits, and treatment goals. 

  • Xenical (orlistat 120mg): An oral capsule taken up to three times a day with meals containing fats. It works locally in the gut to prevent around 30% of dietary fat absorption without affecting hunger or appetite hormones.

  • Mounjaro (tirzepatide): A weekly injection that acts on GLP-1 and GIP hormone receptors in the body to reduce appetite, slow digestion and increase feelings of fullness.

While clinical trials show Mounjaro produces higher overall weight loss, some people may prefer Xenical as a non-injectable alternative or may tolerate the side effects better. Both treatments come with their own risks and benefits that are important to consider. 

At My Chemist Plus, our prescribers have decades of prescribing experience. We can review your medical details, lifestyle and treatment goals to recommend the most appropriate option for you. Simply fill out our health form to start your consultation.

Start your online consultation for Xenical tablets

Simply fill out our simple medical form and our experienced prescribers will help you find the right treatments for you.

Start your Consultation

Clinical content reviewed by

Hussain Member

Superintendent Pharmacist GPhC 2221167

References

  1. EMC Patient Information Leaflet (Xenical 120mg Capsules, CHEPLAPHARM). Available from: https://www.medicines.org.uk/emc/files/pil.2592.pdf
  2. European Medicines Agency (EMA). Xenical (orlistat). Available from: https://www.ema.europa.eu/en/medicines/human/EPAR/xenical
  3. European Medicines Agency (EMA). Xenical product information. Available from: https://www.ema.europa.eu/en/documents/product-information/xenical-epar-product-information_en.pdf
  4. National Institute for Health and Care Excellence (NICE). Obesity: prescribing information (orlistat). Available from: https://cks.nice.org.uk/topics/obesity/prescribing-information/orlistat/
  5. NHS. Orlistat. Available from: https://www.nhs.uk/medicines/orlistat/