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Health Condition


Digestion

Shop stomach & bowel medicines for constipation, diarrhoea, nausea and travel sickness, plus heartburn & acid reflux relief, from the withaid UK online pharmacy. This category brings together pharmacy treatments for common digestive symptoms, with options in tablet, capsule, liquid, sachet and patch formats designed for short-term self-care.

Find symptom support for holiday stomach upsets, discomfort after spicy food or alcohol, or feeling sick during long car journeys. For diarrhoea, you’ll also find oral rehydration salts and other supportive options to help maintain fluid intake. Always read the label and check suitability, especially if symptoms persist, worsen, or you take other medicines. Orders are sent via Royal Mail in discreet packaging.


Shop by digestion type

Popular types of digestion products

Constipation treatments often include laxative tablets as well as liquid constipation relief, so you can choose a format that fits your routine.

Liquid laxatives and macrogol-style options are commonly available for constipation in measured liquids or sachets mixed with water.

Anti-diarrhoea medicines and rehydration sachets are commonly chosen for short-term diarrhoea management and fluid support when you’re losing more fluid than usual. Explore options in diarrhoea relief.

Heartburn and reflux treatments include products used for heartburn and reflux symptoms, with different formats depending on preference.

Motion sickness products are available as tablets and travel patches, often preferred for longer journeys.

How to choose the right option

  • Match the product to your main symptom, such as heartburn, diarrhoea or nausea.
  • Check the active ingredient, for example anti-diarrhoea medicines, rehydration products, or antacid/alginate options.
  • Review your medicines and conditions for possible interactions, warnings or duplicate ingredients.
  • Consider the format that best fits your routine, such as tablets, liquids, sachets or patches.
  • Monitor duration; if symptoms last more than a few days or keep returning, seek medical advice.
  • Constipation duration check; if there’s no improvement after 3 days for constipation treatments, check the label and seek advice.
  • If you’re unsure which option fits your symptoms best, ask a pharmacist for tailored support.

Quick links: common needs

FAQs

What can I take for constipation?

Constipation treatments include laxative tablets, liquids and sachets. View constipation relief, compare formats, and follow the directions on the label.

What helps with diarrhoea?

Short-term diarrhoea is often managed with anti-diarrhoea medicines and fluids, and some people also use oral rehydration salts to reduce dehydration risk. See diarrhoea relief for options, including rehydration sachets.

What are oral rehydration salts and when are they useful?

Oral rehydration salts (ORS) are sachets mixed with water to help replace fluids and electrolytes when you’re losing more fluid than usual, such as during diarrhoea or vomiting. Browse oral rehydration salts and use exactly as directed on the pack.

What’s the difference between heartburn, acid reflux and indigestion?

Heartburn is a burning feeling often linked to stomach acid moving up into the oesophagus (acid reflux). Indigestion is a broader term for upper stomach discomfort. Reflux that keeps coming back should be checked by a healthcare professional. Compare options in heartburn & acid reflux treatments.

What can help with nausea?

Nausea may be linked to indigestion, infection or travel. Depending on the cause, people may use anti-nausea medicines or hydration support. Browse nausea relief and check warnings before use.

Can children under 12 use diarrhoea or constipation treatments?

Some options may be suitable for children under 12, but age limits and dosing can vary by product. Check the product page for age guidance and always follow the label. Speak to a pharmacist or GP before giving any medicine to a child, especially if symptoms are severe, persistent or recurring. For product options, browse diarrhoea relief or constipation relief.

Can I use digestion medicines during pregnancy or breastfeeding?

Some digestive medicines may not be suitable during pregnancy or breastfeeding. Speak to a pharmacist or GP before using any product, and browse heartburn relief or nausea options while you check what’s appropriate for you.

Can anti-diarrhoea medicines help with diarrhoea linked to IBS?

If you have been diagnosed with IBS, some people use anti-diarrhoea medicines for symptom management. IBS symptoms should be discussed with a healthcare professional before starting treatment. See diarrhoea relief for relevant product types.


Safety information: Always read the label and follow the directions. Speak to a pharmacist or GP if you are pregnant, breastfeeding, have a medical condition, take regular medicines, or if symptoms persist for more than a few days. Seek urgent medical help or call 999 if you experience severe or worsening pain, signs of dehydration, persistent vomiting, blood in vomit or stool, chest pain, black or tarry stools, difficulty swallowing, or sudden unexplained symptoms.

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  • Imodium IBS Relief 2mg Soft 6 Capsules

    Imodium IBS Relief 2mg Soft 6 Capsules

    Imodium
    £4.89
    The Imodium IBS Relief 2mg Soft 6 Capsules by Imodium are designed to provide effective relief for symptoms of Irritable Bowel Syndrome (IBS). These soft capsules contain 2mg of loperamide hydrochloride, a proven anti-diarrhoea medication that helps to...
    Qty in Cart: 0
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    £4.89
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  • Imodium Original 2mg 6 Capsules

    Imodium Original 2mg 6 Capsules

    Imodium
    £4.49
    Imodium Original 2mg 6 Capsules are formulated by Imodium, a trusted brand in the Digestion category. These capsules provide fast and effective relief from symptoms of diarrhea. Each capsule contains 2mg of loperamide hydrochloride, a powerful...
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  • Imodium Classic 2mg 12 Capsules

    Imodium Classic 2mg 12 Capsules

    Imodium
    £6.99
    Imodium Classic 2mg 12 Capsules is a trusted over-the-counter medication designed to relieve symptoms of diarrhea. Manufactured by the renowned brand Imodium, these capsules contain loperamide hydrochloride to help control excessive bowel movement. Each...
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  • Gaviscon Liquid Aniseed 300ml

    Gaviscon Liquid Aniseed 300ml

    Gaviscon
    £10.09
    Gaviscon Liquid Aniseed 300ml ensures lasting relief from discomfort caused by heartburn and acid indigestion. They quickly neutralising excess stomach acid and forms a protective barrier over the stomach contents, preventing heartburn. Effectively...
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  • Gaviscon Original Aniseed Relief Oral Suspension 150ml

    Gaviscon Original Aniseed Relief Oral Suspension 150ml

    Gaviscon
    £7.09
    Gaviscon Original Aniseed Relief Oral Suspension 150ml ensures lasting relief from discomfort caused by heartburn and acid indigestion. They quickly neutralising excess stomach acid and forms a protective barrier over the stomach contents, preventing...
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    £7.09
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  • Gaviscon Original Aniseed 600ml

    Gaviscon Original Aniseed 600ml

    Gaviscon
    £16.49
    Gaviscon Original Aniseed 600ml ensures lasting relief from discomfort caused by heartburn and acid indigestion. They quickly neutralising excess stomach acid and forms a protective barrier over the stomach contents, preventing heartburn. Effectively...
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  • Gaviscon Original Peppermint 600ml

    Gaviscon Original Peppermint 600ml

    Gaviscon
    £16.49
    Gaviscon Original Peppermint 600ml provides you with lasting relief from discomfort caused by heartburn and acid indigestion. They quickly neutralising excess stomach acid and forms a protective barrier over the stomach contents, preventing heartburn...
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  • Gaviscon Liquid Peppermint 300ml

    Gaviscon Liquid Peppermint 300ml

    Gaviscon
    £9.59
    Gaviscon Liquid Peppermint 300ml provides you with lasting relief from discomfort caused by heartburn and acid indigestion. They quickly neutralising excess stomach acid and forms a protective barrier over the stomach contents, preventing heartburn...
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    £9.59
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  • Gaviscon Liquid Peppermint 150ml

    Gaviscon Liquid Peppermint 150ml

    Gaviscon
    £7.09
    Gaviscon Liquid Peppermint 150ml provides you with lasting relief from discomfort caused by heartburn and acid indigestion. They quickly neutralising excess stomach acid and forms a protective barrier over the stomach contents, preventing heartburn...
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    £7.09
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  • Gaviscon Advance Peppermint Suspension 250ml

    Gaviscon Advance Peppermint Suspension 250ml

    Gaviscon
    £12.99
    Experience relief from heartburn and indigestion with Gaviscon Advance Peppermint Suspension 250ml. This digestive health product is formulated by Gaviscon, a trusted brand in the Digestion category. The peppermint flavor provides a refreshing taste...
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    £12.99
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  • Gaviscon Double Action Liquid Aniseed 150ml

    Gaviscon Double Action Liquid Aniseed 150ml

    Gaviscon
    £5.49
    Gaviscon Double Action Liquid Aniseed 150ml provides immediate relief from the pain and discomfort of acid reflux and acid indigestion. Effectively relieve symptoms of hiatus hernia and reflux oesophagitis (inflamed food pipe) Extra strength formula,...
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  • Gaviscon Double Action Liquid Peppermint 150ml

    Gaviscon Double Action Liquid Peppermint 150ml

    Gaviscon
    £7.99
    Gaviscon Double Action Liquid Peppermint 150ml provides you with lasting relief from discomfort caused by heartburn and acid indigestion. It quickly neutralising excess stomach acid and forms a protective barrier over the stomach contents, preventing...
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    £7.99
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  • Gaviscon Advance Aniseed Liquid 300ml

    Gaviscon Advance Aniseed Liquid 300ml

    Gaviscon
    £23.29
    Experience fast relief from heartburn and indigestion with Gaviscon Advance Aniseed Liquid 300ml. This effective solution from Gaviscon is specially designed to soothe and protect the stomach lining, providing long-lasting comfort. The unique aniseed...
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    £23.29
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  • Gaviscon Advance Peppermint Suspension 300ml

    Gaviscon Advance Peppermint Suspension 300ml

    Gaviscon
    £12.99
    Experience fast and effective relief with Gaviscon Advance Peppermint Suspension 300ml in the Digestion category. This product is specially formulated by Gaviscon to soothe heartburn and indigestion symptoms. The peppermint flavor adds a refreshing touch...
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    £12.99
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  • Fybogel Hi-Fibre Lemon Sachets 10

    Fybogel Hi-Fibre Lemon Sachets 10

    Fybogel
    £6.49
    Fybogel Hi-Fibre Lemon Sachets provide relief from constipation, maintaining regularity and helping with haemorrhoids. Refreshing lemon flavoured, natural fibre drink Helps you comfortably maintain regularity Gently relieves constipation Do not...
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    £6.49
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  • Fybogel Mebeverine Sachets 10

    Fybogel Mebeverine Sachets 10

    Fybogel
    £17.99
    This product is to relieve the symptoms of irritable bowel syndrome (IBS)Fybogel Mebeverine contains ispaghula husk, a natural plant material which is high in fibreConsult doctor first if pregnant or breastfeedingYou must consult a doctor if you develop...
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  • Fybogel Hi-Fibre Orange Sachets 30

    Fybogel Hi-Fibre Orange Sachets 30

    Fybogel
    £13.99
    Fybogel Hi-Fibre Orange Sachets provide relief from constipation, maintaining regularity and helping with haemorrhoids. Refreshing orange flavoured, natural fibre drink Helps you comfortably maintain regularity Gently relieves constipation Do not...
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    £13.99
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  • Fybogel Hi-Fibre Orange Sachets 10

    Fybogel Hi-Fibre Orange Sachets 10

    Fybogel
    £6.49
    Fybogel Hi-Fibre Orange Sachets provide relief from constipation, maintaining regularity and helping with haemorrhoids. Refreshing orange flavoured, natural fibre drink Helps you comfortably maintain regularity Gently relieves constipation Do not...
    Qty in Cart: 0
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    £6.49
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  • Dulcolax Twelve Plus 5mg Gastro-Resistant Tablets 40

    Dulcolax Twelve Plus 5mg Gastro-Resistant Tablets 40

    Dulcolax
    £3.99
    The Dulcolax Twelve Plus 5mg 40 Gastro-Resistant Tablets by Dulcolax are a convenient and effective solution for digestive issues. These tablets are specifically formulated to provide relief from constipation and promote healthy digestion. Each tablet...
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    £3.99
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  • Dulcolax Twelve Plus 10mg Bisacodyl Suppositories 12 Pack

    Dulcolax Twelve Plus 10mg Bisacodyl Suppositories 12 Pack

    Dulcolax
    £5.49
    This medicine is used for the short-term relief of occasional constipation. For adults and children over 12 years of age Consult doctor first if pregnant or breastfeeding You must talk to a doctor if you do not feel better or if you feel worse after...
    Qty in Cart: 0
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    £5.49
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  • Dulcolax Adult 5mg Gastro-Resistant Tablets 20

    Dulcolax Adult 5mg Gastro-Resistant Tablets 20

    Dulcolax
    £3.59
    Relieve constipation effectively with Dulcolax Adult 5mg Gastro-Resistant Tablets 20. These tablets are designed to provide gentle and reliable overnight relief from constipation. The gastro-resistant coating ensures the active ingredient is released...
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    £3.59
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  • Dioralyte Relief Raspberry Sachets 6

    Dioralyte Relief Raspberry Sachets 6

    Dioralyte
    £6.99
    Stay hydrated and replenish essential electrolytes with Dioralyte Relief Raspberry Sachets 6. These convenient sachets are designed to provide fast relief from dehydration and help restore the body's natural balance. Perfect for managing digestive issues...
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    £6.99
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  • Dioralyte Relief Blackcurrant 6 Sachets

    Dioralyte Relief Blackcurrant 6 Sachets

    Dioralyte
    £8.49
    Stay hydrated and restore essential electrolytes with Dioralyte Relief Blackcurrant 6 Sachets. Specifically formulated for fast rehydration and relief from dehydration caused by illness or excessive sweating. Each sachet contains a precise balance of...
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    £8.49
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  • Dioralyte Citrus Sachets 6

    Dioralyte Citrus Sachets 6

    Dioralyte
    £6.49
    Keep dehydration at bay with Dioralyte Citrus 6 Sachets. These ready-to-mix sachets are formulated by Dioralyte to restore lost fluids and electrolytes due to digestive issues. Perfect for those experiencing diarrhea or vomiting, the convenient citrus...
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    £6.49
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  • Califig Syrup Of Figs 100ml

    Califig Syrup Of Figs 100ml

    Seven Seas
    £10.39
    Califig Syrup is used for relieving constipation, which can cause pain and discomfort. This syrup with extract of figs, helps you maintain regularity. Free from crustacean, fish, peanut, treenut, soya, sulphur dioxide/sulphite and yeast Sugar,...
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    £10.39
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  • Avomine Travel Sickness Promethazine 25mg 10 Tablets

    Avomine Travel Sickness Promethazine 25mg 10 Tablets

    Avomine
    £2.39
    Avomine Travel Sickness Promethazine 25mg 10 Tablets are specifically designed to alleviate symptoms of motion sickness while traveling. These tablets contain 25mg of Promethazine, a highly effective anti-nausea medication. Avomine tablets are easy to...
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    £2.39
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  • Anusol 12 Suppositories

    Anusol Internal Relief 3 Way Action Suppositories 12

    Anusol
    £4.19
    Anusol Internal Relief 3 Way Action Suppositories 12 by Anusol are designed to provide targeted relief for internal hemorrhoids. These suppositories offer a 3-way action to soothe, protect, and reduce inflammation in the affected area. Made with key...
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    £4.19
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  • Anusol Soothing Relief 12 Suppositories

    Anusol Soothing Relief 12 Suppositories

    Anusol
    £6.49
    Anusol Soothing Relief 12 Suppositories are specially formulated to provide soothing relief for discomfort and irritation in the digestive area. These suppositories from the trusted Anusol brand are designed to effectively target symptoms such as...
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    £6.49
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  • Anusol Soothing Relief Ointment 15g

    Anusol Soothing Relief Ointment 15g

    Anusol
    £5.49
    Anusol Soothing Relief Ointment 15g is a specially formulated product in the Digestion category, brought to you by the trusted brand Anusol. This ointment provides fast and effective relief from symptoms associated with hemorrhoids, itching, swelling,...
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    £5.49
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  • Anusol 24 Suppositories

    Anusol 3 Way Action Internal Relief Suppositories 24

    Anusol
    £7.79
    Keep digestive discomfort at bay with Anusol 3 Way Action Internal Relief Suppositories 24 from the trusted brand Anusol. These suppositories offer triple action relief from symptoms such as itching, swelling, and pain associated with hemorrhoids. The...
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    £7.79
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  • Anusol Plus HC 12 Suppositories

    Anusol Plus HC 12 Suppositories

    Anusol
    £6.99
    Anusol Plus HC 12 Suppositories by Anusol are a powerful hemorrhoid treatment that combines the soothing properties of Anusol with the anti-inflammatory effects of hydrocortisone. These suppositories provide relief from pain, itching, and swelling...
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    £6.99
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  • Anusol Ointment 25g

    Anusol 3 Way Action Soothing Relief Ointment 25g

    Anusol
    £4.79
    The Anusol 3 Way Action Soothing Relief Ointment 25g is a trusted product in the Digestion category, manufactured by the well-known Anusol brand. This ointment is specially formulated to provide soothing relief from symptoms such as itching, burning, and...
    Qty in Cart: 0
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    £4.79
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  • Anusol Cream 43g

    Anusol 3 Way Action Rapidly Absorbed Cream 43g

    Anusol
    £6.49
    The Anusol 3 Way Action Rapidly Absorbed Cream 43g is a powerful and effective product designed to provide relief for digestive discomfort. This cream, manufactured by the trusted Anusol brand, offers fast absorption and three-way action to target pain,...
    Qty in Cart: 0
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    £6.49
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  • Anusol Cream 23g

    Anusol 3 Way Action Rapidly Absorbed Cream 23g

    Anusol
    £4.19
    The Anusol 3 Way Action Rapidly Absorbed Cream 23g is a top-quality product in the Digestion category, manufactured by the well-known Anusol brand. This cream is specially formulated to provide rapid relief from itching, swelling, and discomfort...
    Qty in Cart: 0
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    £4.19
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  • Andrews Salts 250g

    Andrews Salts 250g

    Andrews
    £8.49
    Andrews Original Liver Salts 250g is a trusted product in the Digestion category manufactured by Andrews. This effervescent powder provides relief from indigestion, stomach discomfort, and acidity. Made with natural ingredients, including sodium...
    Qty in Cart: 0
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    £8.49
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  • Pack of Andrews Liver Salts 150g featuring ingredients: salt, magnesium chloride, sodium citrate, and citric acid.

    Andrews Liver Salts 150g

    Andrews
    £7.59
    Andrews Original Liver Salts 150g is a trusted product in the Digestion category, manufactured by the renowned Andrews brand. This product is specifically formulated to provide relief from indigestion, heartburn, and upset stomach. With a refreshing...
    Qty in Cart: 0
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    £7.59
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  • Pack of Alka-Seltzer XS featuring 20 effervescent tablets for quick relief from aches and pain.

    Alka Seltzer XS 20 Tablets

    Alka Seltzer
    £6.79
    The Alka Seltzer XS Double Action Pain Relief 20 Tablets are designed to provide fast and effective relief from aches and pains. Manufactured by the trusted brand, Alka Seltzer, these tablets work quickly to alleviate headaches, muscle aches, and other...
    Qty in Cart: 0
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    £6.79
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  • Alka Seltzer Original Aspirin 20 Effervescent Tablets

    Alka Seltzer Original Aspirin 20 Effervescent Tablets

    Alka Seltzer
    £6.29
    Alka Seltzer Original Aspirin 20 Effervescent Tablets are a fast-acting pain relief solution for various aches and pains. These effervescent tablets quickly dissolve in water to deliver a powerful combination of aspirin and other ingredients to provide...
    Qty in Cart: 0
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    £6.29
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  • Alka Seltzer Original Aspirin 10 Effervescent Tablets

    Alka Seltzer Original Aspirin 10 Effervescent Tablets

    Alka Seltzer
    £3.79
    The Alka Seltzer Original Aspirin 10 Effervescent Tablets are a fast-acting and effective solution for relieving aches and pains. Manufactured by the trusted Alka Seltzer brand, these tablets are designed to quickly dissolve in water, providing you with...
    Qty in Cart: 0
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    £3.79
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