Irritable bowel syndrome

Treatment for the symptoms of irritable bowel syndrome (IBS): anti-spasmodic Colofac tablets, Fybogel Mebeverine, and Colpermin capsules.

Read medical information and answer medical questions to buy treatment online.

Treatment for IBS

Prices
Colpermin capsules

Colpermin (peppermint oil 0.2mls)

100-300 caps from £17.50

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finasteride 1mg

Colofac (mebeverine)

Tablets & capsules from £11.30

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Regaine extra strength

Fybogel mebeverine (plus ispaghula husk)

10–40 from £5.20

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Prices

IBS treatmentQuantityCost
Colpermin capsules (peppermint oil 0.2mls)100 capsules 1-2 three times daily£17.50
Colpermin capsules (peppermint oil 0.2mls)200 capsules 1-2 three times daily£32.10
Colpermin capsules (peppermint oil 0.2mls)300 capsules 1-2 three times daily£44.40
Colofac tablets (mebeverine 135mg)100 tablets 1 three times daily£12.10
Colofac tablets (mebeverine 135mg)200 tablets 1 three times daily£21.40
Colofac capsules m/r (mebeverine 200mg)60 slow release capsules 1 twice daily£11.30
Colofac capsules m/r (mebeverine 200mg)120 slow release capsules 1 twice daily£18.10
Fybogel mebeverine (135mg+ispaghula husk 3.5g)10 sachets 1 twice daily£5.20
Fybogel mebeverine (135mg+ispaghula husk 3.5g)20 sachets 1 twice daily£9.40
Fybogel mebeverine (135mg+ispaghula husk 3.5g)40 sachets 1 twice daily£18.70

Prescription issued online - small prescription fee per order.

Prescription fees

Dr Fox supplies medicine on prescription and charges a small prescription fee based on the order value of each prescription.

Prescriptions are issued by our doctors online and sent electronically to our pharmacy.

If you have your own private or NHS paper prescription please post to our pharmacy (details).

Dr Fox prices are 25%–50% lower than other UK online clinics.

Order valuePrescription fee
up to £10£1.00
up to £20£3.00
up to £50£5.00
up to £100£8.00
over £100£10.00

Delivery charges

Medical information

Irritable bowel syndrome

Irritable bowel syndrome (IBS) is the most common intestinal upset, affecting 1-2 in every ten people. IBS is not dangerous in any way. It can be uncomfortable, unpleasant and distressing.

IBS symptoms vary from one person to another. Symptoms include vague abdominal discomfort, a sense of fullness sometimes called bloating, spasm-like pain in the tummy that comes in waves, constipation in some, and loose motions or diarrhoea in others.

Irritable bowel syndrome symptoms are intermittent. They come and go.

Symptoms may be present for few days at a time, or a week or longer. They usually settle down completely between flare-ups only to come back later. Irritable bowel syndrome is triggered in some people by stress. Some people can identify foods associated with a flare up of their symptoms.

IBS symptoms may be anything from occasional and mild through to severe distressing and incapacitating. The pain can be severe and very real.

Causes of IBS

There is no known cause for IBS. The condition is generally considered to be of unknown origin.

Caution with self-diagnosis and treatment

IBS has certain recognisable features that help to confirm the diagnosis:

  • People usually have IBS on and off for years.
  • IBS usually starts in the 20-30s.
  • The pattern of symptoms of IBS are usually similar from one flare up to the next.
  • People with IBS are usually perfectly well and symptoms free between flare-ups.

Symptoms to report to your GP (where self-treatment is not recommended)

  • Weight loss (people with IBS usually do not lose weight).
  • Constant pain or increasing pain in one spot (the pain of IBS usually comes and goes during a flare up and disappears completely between flare ups).
  • Worsening constipation suggesting a blockage of the bowel.
  • Blood in the motions (stools). IBS can cause diarrhoea but not blood in the stool.
  • Symptoms starting in people over 50 (IBS usually starts early in life although it may be a life-long complaint).

If in doubt please see a GP and do not self-treat.

Treatments: Colofac, Fybogel, Colpermin

We carry out consultations and prescribe medicine to reduce spasm in the bowel and sooth the bowel.

Colofac contains mebeverine, which is an antispasmodic.

Fybogel with colofac contains mebeverine plus fibre. For some people this works better than Colofac on its own.

Colpermin capsules contain the natural soothing ingredient, menthol.

Preparations

  • Colofac, Mebeverine 135mg per tablet, taken three times daily before meals.
  • Colofac MR, Mebeverine 200mg slow release tablet taken twice daily.
  • Fybogel Mebeverine, Mebeverine 135mg plus ispaghula husk 3.5g one sachet twice daily.
  • Colpermin capsules. Peppermint oil 0.2mls per capsule (includes peanut oil) 1-2 capsules three times daily.

Other things that help in some people but not others are: eating more fibre, eating less fibre, avoiding foods that seem to be associated with a flare-ups, trying to reduce stress, drinking plenty (minimum of 1.5L/day), and possibly for some people probiotics.

Side effects

Significant side effects are rare. They include allergic reactions after taking the first dose with mebeverine. Colpermin can cause heartburn and soreness around the anus. Colpermin contains menthol which can inflame the mouth if capsules are chewed.

For more information see NHS Choices information page on Irritable bowel syndrome, or read the patient information leaflet supplied with treatment (links below).

Buy treatment

Dr Fox supplies treatment for irritable bowel syndrome on prescription – you are required to answer a short medical questionnaire before your order can be completed.


Authored 07 March 2010 by Dr Tony Steele, MB ChB

Reviewed 04 January 2017 by Dr B. Babor, MB ChB

Last updated 24 May 2017


  1. Medical questions
  2. Choose treatment
  3. Complete order

Answer medical questions to order(irritable bowel syndrome)

Have you read the IBS medical information?

Please read irritable bowel syndrome medical information.

Are you allergic to the treatment you are planning to order?

  • Colofac contains mebeverine
  • Colpermin contains menthol (peppermint) and peanut and soya protein

Have your symptoms started for the first time in the last 2 years?

Have your symptoms started for the first time after the age of 50?

Have you or anyone around you noticed weight loss not due to dieting?

Have your IBS symptoms changed from the ones you are used to?

Have you noticed blood in your motions (stools)?

If ordering Colafac (Mebeverine) or Fybogel Mebeverine, have you been diagnosed with any of the following?

Answer 'No' if ordering Colpermin only.

  • Porphyria – a very rare metabolic disorder with varied and multiple symptoms
  • Paralytic ileus – complete blockage of the bowel due to inactive bowel

Do the following apply to you?

  • I am over 18
  • The medication is for my own use
  • I will read the information leaflet supplied with the medication
  • I agree to the terms and conditions

The order process

Answer short medical questionnaire

Choose treatment, register, and pay

Doctor issues prescription online

Medicine posted direct from pharmacy


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