Your Online Medical Consultation


Is your BMI 30 or higher?

If you don’t know what your BMI is, please calculate it here.

How many calories do you think you have in a typical day?

If you are unsure, click here to use the NHS calorie checker to help you give an answer.

Are you using, or have you used Orlistat (Xenical) to help lose weight?

If yes, can you provide details on the following?

(If this does not apply to you, please answer ‘NA’)

  1. How long have you taken it for?
  2. When did you stop?
  3. How much weight have you lost?
  4. Have you experienced any side effects taking Orlistat (Xenical)?

What else have you done to try to loose weight?

For example:

  • Used other weight loss treatments such as Alli or Phentermine
  • Spoken to your GP
  • Gone on a diet
  • Started exercising
  • Underwent a surgical procedure


Do you have any allergies to any medication or substances?

Answer ‘no’ if this does not apply to you

Are you taking any of the following medication?

  • Acarbose (medication for diabetes)
  • Amiodarone (medication for irregular heart beat)
  • Anti-epileptic medication
  • Ciclosporin (medication to dampen the immune system) ciclosporin?
  • Iodine salts and/or levothyroxine (medication for low thyroid levels)
  • Medication to treat HIV
  • Warfarin (medication to thin the blood)

Are you taking any other medication, or have you recently finished a course of medication?

This includes medication prescribed by your doctor, bought in the pharmacy or online, herbal supplements, recreations drugs

This includes tablets, patches, inhalers, injections, contraception and all other forms of medication

Answer ‘no’ if this does not apply to you

Have you ever been diagnosed, or do you currently suffer from an eating disorder such as anorexia or bulimia?

Have you ever had abdominal surgery involving the removal of any of your bowel?

Have you ever been diagnosed with any of the following?

  • Epilepsy
  • Gut malabsorption problems
  • Gallstones
  • Gallbladder or bile duct problems such as cholestasis
  • Liver disease
  • Thyroid problems

Do you suffer from any other medical problems?

Such as kidney disease, kidney stones?

This also includes previous admissions to the hospital or any surgeries

Answer ‘no’ if this does not apply to you

Do you have a family history of any medical conditions?

Do any medical conditions run in the family? Such as heart problems, diabetes, blood disorders etc?

Answer ‘no’ if this does not apply to you

Are you pregnant or breast feeding, think you may be pregnant or planning to have a baby?


I am aware that Orlistat (Xenical) may cause harmless changes to my bowel habits, such as fatty or oily stools due to the loss of undigested fat in my faeces.

I understand that this treatment should be taken with a nutritionally balanced, calorie-controlled diet that contains about 30% of the calories from fat. My diet should be rich in fruit and vegetables.

I understand that this medication reduces the absorption of some vitamins. I should take a multivitamin that contains vitamin D, E, K and beta carotene whilst using this Orlistat (Xenical). A multivitamin should be taken once a day, 2 hours before or after taking Orlistat (Xenical).

I am aware that if I am using an oral contraceptive, I will need to use addition contraceptive methods. The oral contraceptive pill can fail in cases of severe diarrhoea.

I understand I will need to discuss dosage of any routine medication I am on with my GP when my weight changes

I understand that, if after 3 months, I have continued to gain weight then Orlistat (Xenical) is not a suitable treatment for me.

I understand that I must stop Orlistat (Xenical) once my BMI is below 28.

Click here to calculate your BMI


We strongly recommend that you inform your GP of any treatment you receive. Would you like e-Surgery to do this in your behalf?

Please write the name of your GP surgery below if you want us to let them know.

This will ensure that any new medication started by your GP will not interact with this treatment.

Answer ‘no’ if you do not want us to inform your GP

I agree to the following

  • I am 18 years of age or older
  • This treatment is for my use only
  • I confirm that I have understood all the questions asked and have answered all questions to the best of my knowledge.
  • I have read the patient information leaflet supplied with this medication
  • I will contact e-Surgery and inform my GP if I experience any side effects from this treatment or if there are any changes to my health
  • I have answered all questions truthfully and accurately.

I have read, understood and agree to abide by terms and conditions and privacy policy and cookie policy of e-Surgery

Xenical (Orlistat)

Xenical (Orlistat) is a medicine used to treat obesity. It works in your digestive system to block about one-third of the fat in the food you eat from being digested. Xenical (Orlistat) attaches to the enzymes in your digestive system (lipases) and blocks them from breaking down some of the fat you have eaten during your meal. The undigested fat cannot be absorbed and is eliminated by your body. Xenical (Orlistat) is indicated in the treatment of obesity along with a low-calorie intake diet.

Choose your desired length of treatment below, fill out our short 2 min questionnare and one of our experienced GPs will make sure it is safe for you to take. All prices include the cost of a private prescription.


Important Facts About Xenical (Orlistat)

Most frequent questions and answers about using Xenical (Orlistat) for obesity treatment

Xenical (Orlistat) attaches to the enzymes in your digestive system that aid the process of breaking down fats from your food. It then works to block the intake of about one-third of the fat in the food you eat.

Xenical (Orlistat) is used to treat obesity. By blocking the intake of about one-third of the fat in the food you eat, the remainder is eliminated from your body.

You should not take Xenical (Orlistat) if:

  • You are allergic to any of the ingredients
  • You have chronic malabsorption syndrome
  • You have cholestasis
  • You are breast-feeding

Always follow the nutrition program recommended to you by your doctor in order to get the maximum benefit of treatment. As with any weight-control program, over consumption of fat and calories may reduce any weight loss effected. 

By taking Xenical tablets your bowel habits may change. These are harmless side effects such as: fatty or oily stools.

If you take more orlistat capsules than you have been told to take, contact a doctor, pharmacist or hospital.

Always take Xenical (Orlistat) tablets exactly as your doctor has told you. If you are unsure, check with you doctor or pharmacist if you are not sure.

Xenical (Orlistat), should be taken with a well-balanced calorie controlled diet that is rich in fruit and vegetables and contains an average of 30% of the calories from fat.

Your daily intake of fat, carbohydrate and protein should be distributed over three meals. 

You usually take one capsule at breakfast time, lunch time and dinner time. To gain optimal benefit, avoid the intake of food containing fat between meals. 


As with any form of medication, Xenical (Orlistat) capsules have side effects. For a full list of side effects, please read the Patient Information Leaflet of Xenical (Orlistat).  Below are a few of the common side effects of taking Xenical (Orlistat) capsules:

  • Headaches
  • Abdominal pain
  • Urgent need to open bowels
  • Oily discharge
  • Liquid stools
  • Low blood sugar levels
  • Upper respiratory infections
  • Flu

For a full list of side effects, please read the Patient Information Leaflet of Xenical (Orlistat).

If you forget to take a Xenical (Orlistat) capsule at any time, take it as soon as you remember – provided that this is within one hour of your last meal. Following this, continue the Xenical (Orlistat) treatment as normal.

Do not take a double dose, and if you miss several doses, consult your doctor for advice.

If you are pregnant or are breast-feeding, ensure you consult your doctor or pharmacist before taking Xenical tablets.

It is not recommended to take Orlistat during pregnancy and you must not breast-feed your infant during treatment with Xenical.

Click here for a PDF copy of the patient information leaflet

Click here for more information about Xenical (Orlistat)

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