Obesity can be the trigger to serious medical conditions that may be fatal, including stroke, diabetes, high blood pressure, and coronary diseases. In this sense, it is a must to lose weight, especially when you belong to the overweight or obese group as per the body mass index (BMI) standards.

Although diets and exercise work, taking medicines that can supplement and increase your weight loss can be advantageous. A prescription weight-loss medicine, such as Xenical contains orlistat, which helps reduce fat absorption. Taking this medication with proper diet and exercise will speed up your weight loss journey.

  • Blocks the fat you eat and stops its absorption
  • Aids with weight loss
  • Reduces the risk of regaining weight
  • For adults over 18 with a BMI over 28
  • Sourced in the United Kingdom


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UK Medication

Dispensed by registered UK pharmacists

Frequently Asked Questions

What is Xenical? 

Orlistat is a lipase inhibitor that prevents dietary fats from being absorbed in the intestine. It is the active ingredient of Xenical, a weight loss pill UK. Studies have revealed that this weight loss medication helps people lose more weight than dieting alone. It is prescribed exclusively to obese or overweight people aged 18 and above. 

When taking Xenical, doctors will prescribe that you take it with a reduced-calorie, low-fat diet and exercise.

How does Xenical UK work? 

As mentioned, the active ingredient—orlistat contained in Xenical attaches itself to the stomach’s enzymes, called lipases. After successful attachment, the active ingredient then blocks the process of breaking down fat and its absorption. The unabsorbed fat will then be eliminated from the body. 

How does Xenical help with Weight Loss?

Studies have shown that an extra 50% of body fat is lost when Xenical is used alongside a reduced-calorie, low-fat diet. This pill lessens fat absorption by approximately 30% of what is consumed. 

Its active ingredient ensures that fat is not absorbed and is eliminated from the body to lessen the total absorbed fat, which then results in weight loss. Medical experts will recommend a fruit- and vegetables-rich diet and to distribute the protein and carbohydrate intake among the three meals of the day.

How to use Xenical Capsules? 

Again, always follow the instructions provided by your doctor while using this medication. You should also read the enclosed patient information leaflet to learn more about the product. And report to your doctor immediately if you experience any adverse effects.

The usual dose of this medication is one (1) 120mg capsule every meal. It means that you should take one tablet for breakfast, lunch, and dinner; a total of three (3) capsules should be taken every day. You can take it immediately before, during, or up to one (1) hour after a meal. Swallow the capsule whole with a drink of water.

As mentioned, diet pills UK that contain orlistat should be taken with a well-balanced diet; this includes Xenical. Your doctor will instruct you to eat a low-calorie, low-fat diet alongside this medication to get its maximum benefits. It also means that your fat, carbohydrate, and protein intake should be equally distributed among your three meals per day. With that said, you should avoid eating fat-containing food between meals, such as biscuits, chocolate, and savoury snacks.

If you miss or skip a meal or eat a zero-fat meal, it is not necessary to take your usual Xenical dose as it will only work with the presence of dietary fat. Following the instructions as prescribed by your doctor will help you lose at least 5% of your starting body weight after 12 weeks; otherwise, your doctor will discontinue the treatment using Xenical.

Moreover, if you miss taking your dose after a meal, you can take it if only less than one (1) hour has elapsed from your last main meal. If it has been more than an hour after your last main meal, skip that dose and wait for the next one; continue with your schedule as usual. If you take more than your dose, contact a doctor or hospital for immediate medical help.

Want To Know More About Xenical?

It is a prescription-only medication; therefore, you need to consult your doctor first before you can but and take it to jumpstart your weight loss journey. You need to inform your doctor about your existing medical conditions and medications to ensure you get optimum benefits while taking Xenical.

If you have or have had any of the following, you shouldn’t take Xenical:

  • Allergic (hypersensitive) to orlistat or any ingredients of this medicine
  • Chronic malabsorption syndrome
  • Cholestasis
  • Pregnant
  • Breastfeeding or nursing mother

Other conditions, such as high cholesterol or diabetes, can affect your dose of this medication. You should inform your doctor if you have or taking medications for any of this condition before taking Xenical. 

On the other hand, you can gain more benefits from using this product when you take it with your doctor’s recommended nutrition program, which is low-calorie and low-fat. High intake of at and calories can reduce the weight loss effect of this medication. 

You may also experience changes in your bowel movement habit; your stool may become fatty or oily due to the elimination of the unabsorbed fats. However, the occurrence of this phenomenon as with other gastrointestinal effects will be higher if you continue to take a high-fat diet. 

Also, persons suffering from chronic kidney diseases may experience the effects of renal stones as it is common with any orlistat-containing medication. Notify your doctor if you have the said medical condition.

Moreover, other medications may affect or be affected by Xenical. Inform your doctor about the medications you are taking, including prescription and non-prescription ones. The activities of the following medicines may change due to Xenical:

  • Anticoagulant drugs  (warfarin)
  • Ciclosporin
  • Iodine salts and levothyroxine
  • Amiodarone
  • HIV medications
  • Depression, psychiatric disorders or anxiousness treatments and drugs
  • Anticonvulsant or  antiepileptic drugs
  • Acarbose

Also, this medication may affect the absorption of multivitamin components, specifically beta-carotene and vitamin E. Therefore, you should abide by the diet recommended by your doctor or request an alternative source of these nutrients.

Like other weight loss pills UK, Xenical can also bring unwanted side effects. You must pay close attention to any changes in your health and body and inform your doctor immediately.

The following are classified as very common and common side effects of Xenical:

  • Headache
  • Abdominal pain or discomfort
  • Urgent or increased need to move bowels
  • Flatulence (wind) with discharge
  • Oily discharge, oily or fatty stools, liquid stools
  • Low blood sugar levels (for people with type 2 diabetes)
  • Rectal pain or discomfort
  • Soft stools
  • Incontinence (stools)
  • Bloating (for people with type 2 diabetes)
  • Tooth or gum disorder
  • Irregular menstrual cycle
  • Tiredness

Other reported side effects by Xenical users are as follows:

  • Allergic reactions, including  itching, rash, wheals, severe breathing difficulty, nausea, vomiting, and feeling sick
  • Skin blistering
  • Diverticulitis
  • Rectal bleeding
  • Hepatitis
  • Jaundice
  • Gallstones
  • Pancreatitis
  • Oxalate nephropathy
  • Increased levels of some liver enzymes found in blood tests

If you experience any of these, stop taking the medication immediately and report it to your doctor.

Each capsule of Xenical contains 120 mg of orlistat. If you’re looking into purchasing the best diet pills in the UK, you can only buy orlistat at your nearest treatment dispensery. You will need to have the appropriate prescription from your doctor. You can also purchase it online at True Medical, where you will have a consultation with a physician before checkout.