What is Orlistat?
Orlistat is a medicine used to help obese patients lose weight. It contains 120mg of the active ingredient with the same name and may be prescribed to patients with a BMI above 30. Orlistat can also be sold under the brand name Xenical.
- Generic 120mg capsules (84)
- Branded Xenical 120mg capsules (84)
- Orlistat & Xenical

How does Orlistat work ?
Orlistat is a medication that can help with weight loss by reducing the amount of fat absorbed from food. It's available over-the-counter and by prescription.
Orlistat prevents the enzyme lipase from breaking down fat in the intestines. This means that some of the fat you eat passes through your system undigested and is eliminated in your stool. This can help you lose weight by reducing your caloric intake.
How to use Orlistat
Add diet and exercise
Orlistat is taken with a low-calorie diet and regular exercise.
Take around mealtime
You should take orlistat immediately before, during, or up to an hour after each main meal.
Quick, noticeable results
You should see some weight loss within two weeks of starting orlistat.
Who can take it?
Orlistat is used to treat obesity and overweight people. It can also be used after weight loss to prevent regaining weight.
Orlistat is not suitable to use if any of the below applies to you:
- If you are allergic or sensitive to orlistat of any of the other ingredients in the patient information leaflet.
- If you suffer from chronic malabsorption syndrome.
- If you have cholestasis.
- If you are breast feeding.
- If you are taking ciclosporin.
- If you are taking acarbose (to treat type 2 diabetes mellitus).
- Always let our doctors know if you are taking any other medicines by including this information in the medical questionnaire.
Orlistat product details
Orlistat is a prescription-only weight loss medication that contains the active ingredient of the same name. It works by blocking the enzymes responsible for absorbing the fat you eat and instead removes it from your body as stool waste. Orlistat is available in the form of an oral pill. When taken alongside a healthy calorie-controlled diet, it is an effective weight loss medication. Research has found that orlistat can help 37% of people lose 5% of their body weight after 12 weeks of treatment.
Medicine
Cost (4 week supply)
Active ingredient
Usage
Weight loss

Medicine
Orlistat (weight loss capsule)
Cost (4 week supply)
£70 per 84
Active ingredient
Orlistat
Usage
Take 1 capsule, 3 times per day. Take each capsule with a main meal. For best results, Orlistat should be taken alongside a restricted calorie diet.
Note, Orlistat should only be taken if your meal contains fat. If your food does not contain fat, do not take Orlistat.
Weight loss
10% or more of your starting weight within 6 months
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