IBS medicine over the counter - review of products for IBS

14 BEST IBS Medication Over The Counter

Spread the love

Irritable bowel syndrome (IBS) is a common condition which is characterised by smooth muscle spasm alongside the gastrointestinal tract with a range of associated symptoms. Patients who are diagnosed with IBS are usually advised on the lifestyles to minimise the risk of IBS symptoms. Review of diet and lifestyle is one of the first recommendations gives by a doctor once a patient is diagnosed with IBS. Drug treatment can be used alongside lifestyle measures. Most of the drugs which are recommended in the symptomatic management of IBS can be purchased over the counter from pharmacies, supermarkets and online. Today I will review 14 best IBS medication over the counter.

This review will look at the availability of IBS medication over the counter and compare it with the recommended guidelines on IBS treatment. In summary, the following IBS medication over the counter will be reviewed:

  • IBS drugs for the treatment of constipation
  • IBS drugs for the treatment of diarrhoea
  • IBS drugs for the management of cramps and spasm
  • IBS pain management with over the counter drugs
  • Other over the counter drugs used for IBS

Firstly let’s review the NICE guidelines on the management of IBS (NICE, 2017).

IBS – recommended treatments

National guideline on the management of IBS broadly divides the treatment into two categories:

  • dietary and lifestyle advice
  • pharmacological (drug) therapy

IBS – dietary and lifestyle advice

Patients who were diagnosed with IBS are usually advised on self-help related to lifestyle, physical activity, and diet. General recommendations include (ibid):

  • Having regular meals
  • Drinking plenty of fluids throughout the day, preferably water and drinks without caffeine.
  • Limit alcohol intake
  • Limit tea and coffee consumption
  • Reduce high-fibre foods. Fibre requirement should be reviewed regularly, depending on the symptoms present.
  • Limit intake of processed food, which contain difficult to digest starch
  • People who experience episodes of diarrhoea should avoid artificial sweeteners, which can cause a laxative effect. Sorbitol, a common sweetener can be found in sugar-free versions of drinks, sweets and chewing gums.
  • Aloe vera should not be used to treat IBS.

IBS – drug therapy

IBS medications are used for symptomatic management of the condition. National guidelines suggest the use of different drugs, depending on the patient’s symptoms. Drugs used in the management of IBS can be divided into the following categories:

  • Laxatives: for the treatment of constipation (lactulose should be avoided). Most laxatives, which can be used are available over the counter without a prescription. Some prescribed medicines, such as (linaclotide) are only used where treatment failed to deliver expected results, and symptoms of constipation are present for more than 12 months.
  • Drugs to stop diarrhoea. Patients can purchase IBS medication over the counter to treat diarrhoea, which is the same drugs as prescribed options.
  • Antidepressants (prescription-only medicines). Antidepressants such as tricyclic antidepressants (TCAs) are a second-line option for the treatment of diarrhoea only if commonly used loperamide is unsuccessful. This group will not be reviewed in this post as an antidepressant are not available over the counter.
  • Antispasmodic and anticholinergic drugs for IBS associated cramps and spasm.

IBS over the counter medicine – treatment of constipation

I reviewed over the counter laxatives in the post ‘The Best Over The Counter Laxatives (UK)‘. As previously mentioned, lactulose (an osmotic laxative) should not be used to help with IBS related constipation. Although lactulose is considered as a ‘gentle’ laxative, it may produce gas and cause bloating when taken. Bloating caused by lactulose can make IBS worse.

IBS medication over the counter: bulk-forming laxatives

Bulk-forming laxatives are considered as first-line treatment of constipation in IBS. Their mechanism of action is simple –soluble fibre contained in the formulation increases of faecal mass, which makes the stool softer, more comfortable to pass and regularly. If needed, the dose of bulk-forming laxatives can be adjusted according to the response.   

Two main ingredients found in bulk-forming laxatives are ispaghula husk (also known as psyllium), sterculia, or methylcellulose. Both active ingredients are recommended to those who lack fibre in their diets.

Key points on the use of bulk-formin laxatives:

  • Bulk-forming laxatives take few days to work, usually 2-3 days
  • Bulk-forming laxatives should not be taken at night, before going to bed
  • Patients need to make sure that plenty of water (fluids) when bulk-forming laxatives are used.
  • Bulk-forming laxatives should not be used to treat constipation caused by drugs, such as co-codamol or other codeine-based drugs.
  • Bulk-forming laxatives can cause flatulence and bloating. 

Most popular over the counter bulk-forming laxatives


Fybogel comes in the form of granules which are firstly mixed with water and then consumed. Fybogel range includes:

  • Fybogel Orange Granules
  • Fybogel Plain Granules
  • Fybogel Hi-Fibre Lemon Granules
  • Fybogel Hi-Fibre Orange Granules

Most pharmacies keep Fybogel as a part of their dispensing stock. Customers may need to get larger Fybogel packs from a pharmacy counter as products available for self-selection may be smaller in size.

1. Fybogel Orange granules

Fybogel Orange - bulk-formin laxative for IBS
1,100 Reviews
Fybogel Orange - 30 Sachets x 2 Packs
  • Each single dose sachet of granules contains 3.5g Ispaghula Husk BP in an orange flavoured base containing aspartame and saccharin sodium sweeteners, potassium bicarbonate, curcumin colour, sodium bicarbonate, polysorbate 80, silica colloidal anhydrous and citric acid. Fybogel Orange is sugar free and gluten free.
  • Each single dose sachet of granules contains 3.5g Ispaghula Husk BP in an orange flavoured base containing aspartame and saccharin sodium sweeteners, potassium bicarbonate, curcumin colour, sodium bicarbonate, polysorbate 80, silica colloidal anhydrous and citric acid. Fybogel Orange is sugar free and gluten free.

2. Fybogel Hi-Fibre Orange

Fybogel Hi-Fibre Orange flavour
2,085 Reviews
Fybogel Hi-Fibre Orange flavour, 30 sachets
  • Orange flavored natural fibre drink
  • Gently relieves constipation
  • Maintains regularity

3. Fybogel Plain granules

Fybogel Original/Natural - bulk-forming laxative for IBS
51 Reviews

Fybrogel is popular pharmacy product which contains ispaghula husk (psyllium husk); however, there are plenty of supplements which can be purchased online, for example on Amazon.co.uk, which include the same ingredients and are a source of dietary fibre. Some of them may be cheaper than Fybogel brand.

A couple of popular examples:

4. Ispaghula Husk Orange Drink

Ispaghula Husk Orange Drink is a very similar product to Fybogel, providing for the same amount of ispaghula husk per serving – 3.5g. It comes in same size box containing 30 sachets. Although this product is cheaper than Fybogel, the flavour may be compromised a little bit. Looking briefly at reviews, many customers find Fybogel of more acceptable taste.

IBS medication over the counter - Ispaghula Husk Orange Drink for constipation
269 Reviews
Ispaghula Husk Orange Drink Sachets, Pack of 30
  • Soluble fibre orange flavour drink
  • Increase the fibre in your diet
  • Helps your digestive system work more efficiently and gently

5. Lepicol High Fibre Psyllium Husk

Psyllium husk is another name for ispaghula husk. Lepicol has a rather unique formula of three different ingredients:

  • Psyllium husk
  • Live bacteria
  • Insulin (a fibre from chicory root and not the Insulin produced by the pancreatic cells)

As advertised the Insulin (chicory root) is not broken down by the body, but fermented by live bacteria to support the growth of natural bacterial flora in the gut. Live bacteria help to maintain microflora in the gut.

I questioned whether any of the bacteria included in the Lepicol survive the acid environment of the stomach, where digestion happens. Manufacturer of Lepicol replied to my query explaining that bacteria are encapsulated during the freeze-drying process (to preserve bacteria), which protects bacteria from the acidic environment as confirmed by a laboratory test.   

Nevertheless, this is an interesting and unique combination product which helps with constipation. 

Lepicol Original 3-in-1 Formulation Contains Psyllium Husk for constipaton
517 Reviews
Lepicol Original 3in1 Formulation – Contains Psyllium Husk, Inulin and 5 Strains of Live Bacteria – 350g Powder
  • High in Fibre
  • Contains gentle psyllium husk which contributes to the maintenance of normal bowel transit
  • Contains 5 strains of live bacteria, proven to survive the high acidity of the stomach

6. Methylcellulose for IBS (Celevac)

IBS medicine over the counter-Celevac - methylcellulose

Methylcellulose is less commonly prescribed and requested over the counter. There is only one product used for constipation which contains methylcellulose called Celevac. Some pharmacies may stock Celevac, almost definitely one would need to ask about it at the pharmacy counter. Celevac is not only licensed for the treatment of constipation but also to control appetite and the treatment of obesity.

IBS drugs for the treatment of diarrhoea

The most popular drug in the UK for the management of diarrhoea is loperamide (brand name: Imodium). Loperamide is widely available over the counter from pharmacies and supermarkets.

Loperamide is usually taken when fast symptom control is required.

7. Generic loperamide

Getting loperamide online is probably the cheapest option for customers. Patients who may need to use loperamide regularly after a recommendation from a doctor may benefit from having loperamide prescribed, as a GP can issue larger quantities. There are plenty of generic brands available on Amazon.co.uk which are generally cheaper than loperamide found in supermarkets and pharmacies.

Generic Loperamide – IBS medication over the counter
1,175 Reviews
Galpharm Diarrhoea Relief 2mg, Pack of 6
  • ENTROCALM LOPERAMIDE CAPSULES - Can stop diarrhoea with one dose.
  • Easy to swallow capsule form.
  • Contains Loperamide Hydrochloride 2mg

8. Imodium IBS Relief

Generic Loperamide – IBS medication over the counter
419 Reviews
Imodium Capsules for IBS Diarrhoea Relief - Designed to Relieve IBS Diarrhoea Episodes Quickly - IBS Relief Treatment & Diarrhoea Relief Capsules - 6 Capsules
  • IMODIUM IBS Relief is designed to be easy to swallow and works by slowing down your digestion and returning it to its normal rhythm
  • Effective IBS diarrhoea relief in a calming liquid capsule
  • IMODIUM IBS capsules can provide fast diarrhoea relief in under 1 hour, this helps to restore the absorption of fluids into your body.

I will add a few comments about Imodium IBS Relief. Although this product is marketed for the treatment of IBS related acute diarrhoea, it does not differ from other loperamide products, other than its availability as general sale item (item which can be purchased in any retail shop) and additional licensed indication, which states:

For the symptomatic treatment of acute episodes of diarrhoea associated with Irritable Bowel Syndrome in adults aged 18 years and over following initial diagnosis by a doctor.

Each Imodium IBS Relief capsule contains 2 mg loperamide hydrochloride, which is a standard amount of loperamide. 

IBS drugs for the management of cramps and spasm

Recently I reviewed two drugs, which are used for symptomatic management of crams and stomach pain in IBS. Buscopan Cramps, Buscopan IBS Relief and Colofac are IBS medication available over the counter. Buscopan and Colofac contain two different active ingredients; however, they produce a very similar effect of muscle relaxation alongside the gastrointestinal tract, helping with symptoms of IBS.

  • Buscopan Cramps and Buscopan IBS Relief tablets contain 10mg of hyoscine butylbromide.
  • Colofac IBS tablet contains 135mg of mebeverine hydrochloride
9. IBS medication over the counter: Buscopan Cramps and IBS relief

Buscopan Cramps and Buscopan IBS Relief are the same medication. Both products contain hyoscine butylbromide as an active ingredient.

The only difference is the use restrictions which are attached to Buscopan IBS Relief. Buscopan IBS Relief recommended for patients with confirmed IBS, and it is usually available in stores and pharmacies for customer self-selection. Buscopan Crams, on the other hand, is a pharmacy-only medication.

10. Buscopan IBS Relief

IBS medication over the counter: Buscopan IBS Relief
4,884 Reviews
Buscopan IBS Relief, Pack of 40 Tablets
  • Buscopan IBS Relief effectively relieves cramping abdominal pain and discomfort associated with IBS
  • Different from analgesics, it is specifically designed to target the source of pain and cramps
  • The active ingredient, hyoscine butylbromide works by relaxing the smooth muscle in the bowel and thus relieving the cramp that causes the pain

11. Colofac IBS

Colofac IBS is a pharmacy-only product, with sales restricted to pharmacies and online chemists only. Colofac IBS contains mebeverine hydrochloride. NICE guidelines of the management of IBS informs that mebeverine (Colofac IBS) is preferred drug of choice over antimuscarinic drugs such as hyoscine butylbromide (Buscopan), as it is less likely to cause side effects (BNF, 2017).

Antispasmodics drugs should theoretically improve the symptoms of IBS by reducing muscle contractions and spasm (Chang, 2014).

12. Peppermint Oil for IBS

Similarly to Colofac IBS, Peppermint Oil can be classified as antispasmodic. Peppermint oil relaxes gastrointestinal smooth muscle, helping with symptoms of spasms and cramps.

Several studies showed benefits of peppermint oil (over a placebo – a dummy pill) in controlling IBS symptoms such a muscle spasm and abdominal pain (NICE, 2017).  

Peppermint oil became a popular ingredient in many IBS ‘relief’ products.

One of the most common brands of peppermint oil dispensed in pharmacy is Colpermin capsules. Colpermin is available in two boxes sizes: 100 capsules 100 capsules  and a smaller pack of 20  Colpermin capsules.

IBS medication: Colpermin IBS Relief
949 Reviews
Colpermin IBS Relief - Contains Natural Peppermint Oil That Relieves IBS Symptoms - Peppermint Oil Capsules for IBS Relief - Colpermin Capsules - 20 Pack
  • COLPERMIN IBS Relief contains Natural Peppermint Oil that+E7 relieves IBS Symptoms
  • Suitable for adults and the elderly
  • An effective but gentle way to relieve IBS symptoms

There are plenty of options (better value for money) available on Amazon.co.uk which contain the same amount of peppermint oil as Colpermin, for example, BuscoMint   and other ‘generic’ product:            

IBS medication over the counter: Peppermint oil capsules
423 Reviews
Peppermint Oil Capsules by Colomint | Enteric Coated Gastro-Resistant Natural Soothing Mint Capsules Sealed in Hygienic Blister Strips | Supports Healthy Digestion - 84 Capsules (0.2ml Each)
  • Colomint proudly supports The IBS Network, the national charity that helps people living with irritable bowel syndrome, a collection of otherwise unexplained symptoms relating to a disturbance in the bowels, which can include abdominal pain, bloating, constipation and diarrhoea.
  • HYGIENICALLY SEALED: Colomint peppermint oil capsules are sealed in hygienic blister strips to prevent cross-contamination and provide ease of carrying safely in pockets, bags, cars, etc.
  • HELPS TO ELIMINATE DIGESTIVE DISCOMFORT: Colomint provides peppermint oil extracted purely from natural sources. Peppermint oil helps with indigestion, flatulence and may help to maintain a normal intestinal transit in a person with sensitive bowels.

13. Senocalm IBS Relief Prevention

Senocalm IBS Relief Prevention
232 Reviews
Senocalm IBS Relief Prevention 20 tablets,Pack of 3 (total of 60 tablets)
  • Senocalm capsules are used to relieve and prevent bloating feeling
  • It helps to relieve gas-related symptoms of irritable bowel syndrome (IBS) like painful cramps, pressure, fullness, and indigestion
  • Senocalm capsules contains 125mg Simethicone, Peppermint Oil and Gelatin Capsule

Senocalm IBS Relief takes advantage of two active ingredients in the formulation – peppermint oil and simeticone. The benefit of peppermint oil in the treatment of IBS was already discussed.

Simeticone mainly helps with bloating. Simeticone joins larger gas bubbles inside the gastrointestinal tract, which are then dispersed, allowing removal from the body.

Quite rightly, Senocalm IBS Relief is advertised as a product to help relieve and prevent:

  • bloating,
  • discomfort,
  • painful spasms and
  • cramps
14. Silicolgel for IBS

Last but not least, I will talk about Silicolgel. Silicolgel is a popular product used to treat a range of gastrointestinal symptoms, including:

  • Heartburn
  • Acid reflux
  • Vomiting

.. and additionally, IBS symptoms of:

  • Nausea
  • Flatulence
  • Stomach ache
  • Discomfort
  • Diarrhoea

Silicolgel coats the stomach with a protective gel layer made of colloidal silicic acid, which attracts irritants, gases and toxin, which are removed from the body. Although no clinical evidence exists to support the effectiveness of this product, Silicolgel has overall some great reviews from patients with IBS symptoms.

IBS medication Silicolgel
903 Reviews
Silicolgel, 500 ml
  • Silicolgel coats the stomach with a protective gel layer
  • The particles bind with irritants, toxins and gases
  • These are then pass through as the body empties naturally

IBS Pain management with over the counter drugs

UK guidelines on IBS does not mention any drugs for the management of the pain. Medications reviewed in this post should ease the symptoms and associated pain.

Conventional pain killers, which are available over the counter, for example, paracetamol, ibuprofen or co-codamol are generally not suitable for patients with irritable bowel syndrome. Prescribed drugs such as tricyclic antidepressants and other drugs such as gabapentin and pregabalin can moderately improve IBS symptoms (Chen, 2017).  

IBS medication over the counter – conclusion

Nice guidelines on the management of IBS focuses on lifestyle changes with possible pharmacotherapy with anticholinergic, antispasmodic and other drugs alongside. IBS medication available over the counter offer a good choice for the management of IBS symtoms. Additionally, over the counter combination products which are not mentioned in the IBS guidelines for IBS may offer symptomatic treatment benefits, which has not been clinically reviewed yet.


BNF 73 (2017) British National Formulary. 73rd edn. London: British Medical Association and Royal Pharmaceutical Society. Irritable bowel syndrome: Antispasmodic drugs. Available at: https://cks.nice.org.uk/topics/irritable-bowel-syndrome/prescribing-information/ahntispasmodic-drugs/ Accessed on 29/09/2020

Chang, L., Lembo, A. and Sultan, S. (2014) American Gastroenterological Association Institute Technical review on the pharmacological management of irritable bowel syndrome. Gastroenterology 147(5), 1149-1172. Available at: https://doi.org/10.1053/j.gastro.2014.09.002 Accessed on 29/09/2020

Chen L, Ilham SJ, Feng B. Pharmacological Approach for Managing Pain in Irritable Bowel Syndrome: A Review Article. Anesth Pain Med. 2017 Jan 25;7(2):e42747. doi: 10.5812/aapm.42747. PMID: 28824858; PMCID: PMC5556397. Available at: https://doi.org/10.5812/aapm.42747 Accessed on 03/10/2020

NICE (2017). Irritable bowel syndrome: Scenario: Management of irritable bowel syndrome. Available at: https://cks.nice.org.uk/topics/irritable-bowel-syndrome/management/management/ Accessed on 02/10/2020


I am a community pharmacist working in UK. I blog about drugs, health and pharmacy.

Leave a Reply

Your email address will not be published. Required fields are marked *