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Imodium Instant On the Go Diarrhoea Relief – 12 Orodispersible Tablets

Imodium Instant On the Go Diarrhoea Relief – 12 Orodispersible Tablets

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  • ✔️ Dissolves on tongue instantly — no water needed
  • ✔️ Contains loperamide 2mg for fast diarrhoea control
  • ✔️ Reduces loose stool frequency within hours
  • ✔️ Suitable for adults and young people aged 12+
  • ✔️ Compact 12-tablet pack ideal for travel use

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What Are Loperamide Orodispersible Tablets Used For?

 

Diarrhoea can strike at the worst possible moment — on a long journey, at work, or while travelling abroad. Loperamide orodispersible tablets in the form of Imodium Instant On the Go offer a genuinely practical solution: a tablet that dissolves directly on your tongue, with no water required. Each pack contains 12 mint-flavoured tablets, making them easy to carry discreetly in a pocket, bag, or wallet. At just £7.79, they represent a straightforward, accessible option for managing acute diarrhoea quickly. If you're looking for a broader range of digestive health products, you can also browse our diarrhoea collection at Cured Pharmacy.

The active ingredient is loperamide hydrochloride 2mg per tablet. Loperamide is a well-established antidiarrhoeal medicine that has been used safely in the UK for decades. It works locally in the gut rather than being significantly absorbed into the bloodstream, which is one reason it's considered suitable for short-term use in adults and children aged 12 and over.

 

How Does Imodium Instant On the Go Work in the Gut?

 

Loperamide acts on specific receptors in the wall of the intestine — known as mu-opioid receptors — to slow down the movement of the bowel. This gives the intestine more time to absorb water and electrolytes from the stool, which helps reduce both the frequency and urgency of loose bowel movements. Here's a simplified breakdown of the mechanism:

  • Loperamide binds to mu-opioid receptors in the gut wall
  • Intestinal muscle contractions slow down (reduced peristalsis)
  • More water is reabsorbed from the bowel contents
  • Stool consistency firms up and frequency decreases
  • The anal sphincter tone may also increase, reducing urgency

Because loperamide acts locally in the gut and does not cross the blood-brain barrier in significant amounts at standard doses, it does not cause the sedation associated with other opioid-type medicines.

 

Who Is Imodium Instant On the Go Suitable For?

 

These tablets are designed for adults and young people aged 12 and over who are experiencing acute, short-term diarrhoea. They're particularly well suited to people who need a discreet, on-the-go option without access to water. That said, they're not appropriate for everyone.

  • Adults aged 18 and over with acute diarrhoea
  • Young people aged 12–17 (under adult supervision)
  • Travellers needing a compact, no-water remedy
  • People with busy lifestyles who need fast, discreet relief

They are not suitable for children under 12, people with bloody or black stools, or those with a high fever alongside diarrhoea. If you have a history of inflammatory bowel disease, speak to your GP before using loperamide.

 

How Does Imodium Instant Compare to Standard Imodium Capsules?

 

Feature Imodium Instant On the Go (Orodispersible) Imodium Original Capsules
Active ingredient Loperamide HCl 2mg Loperamide HCl 2mg
Water needed? No — dissolves on tongue Yes — must be swallowed with water
Format Orodispersible tablet (mint flavour) Hard capsule
Portability Highly portable, blister pack Standard blister pack
Suitable age 12 years and over 12 years and over

 

How Should You Store Imodium Instant On the Go Tablets?

 

Store your loperamide orodispersible tablets below 25°C in a dry place, away from direct sunlight and moisture. Keep them in the original blister packaging until you're ready to use them — this protects the tablets from humidity, which can cause them to dissolve prematurely. Always keep medicines out of the sight and reach of children. Do not use after the expiry date printed on the pack. If you're managing other digestive concerns alongside diarrhoea, our IBS and cramps collection may also be worth exploring.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Imodium Instant On the Go Diarrhoea Relief – 12 Orodispersible Tablets specifications
Treatment category Antidiarrhoeal
Active ingredient Loperamide hydrochloride 2mg
Mechanism of action Mu-opioid receptor agonist — slows intestinal motility
Drug class Antiperistaltic agent
Preparation Orodispersible tablet
Route of administration Oral (dissolves on tongue, no water required)
Pack size 12 tablets
Strengths 2mg per tablet
UK classification General Sale List (GSL)
Suitable for Adults and children aged 12 years and over
Effective for Acute diarrhoea, traveller's diarrhoea

Specifications of Imodium Instant On the Go Diarrhoea Relief – 12 Orodispersible Tablets

 

What Is Imodium Instant On the Go and What Is It Used For?

 

Imodium Instant On the Go is an over-the-counter antidiarrhoeal medicine containing loperamide hydrochloride 2mg per orodispersible tablet. It is used to treat acute diarrhoea in adults and young people aged 12 and over. The orodispersible format means each tablet dissolves on the tongue within seconds — no water, no fuss. This makes it particularly useful when you're travelling, commuting, or simply caught without a drink to hand. According to the NHS, diarrhoea is defined as passing looser or more frequent stools than is normal for you, and most cases in adults resolve within two to four days without treatment — but antidiarrhoeals like loperamide can help manage symptoms in the meantime.

 

What Do You Need to Know Before Using Imodium Instant On the Go?

 

Before taking these tablets, it's important to check whether they are appropriate for your situation. There are several contraindications and warnings to be aware of.

Do not use if you:

  • Are under 12 years of age
  • Have bloody or black, tarry stools
  • Have a high fever alongside diarrhoea
  • Have been diagnosed with acute ulcerative colitis or pseudomembranous colitis
  • Are allergic to loperamide or any other ingredient in the tablet
  • Have a condition where slowing gut motility would be harmful (e.g. paralytic ileus)

Use with caution if you:

  • Are pregnant or breastfeeding — seek medical advice first
  • Have liver disease, as loperamide is metabolised in the liver
  • Have HIV/AIDS with diarrhoea — seek medical advice before use

Known drug interactions — tell your pharmacist if you take:

  • Quinidine (heart rhythm medicine) — may increase loperamide blood levels
  • Ritonavir or other HIV protease inhibitors
  • Itraconazole (antifungal) — may increase loperamide exposure
  • Other medicines that slow gut motility

 

How Should You Use Imodium Instant On the Go?

 

Always read the patient information leaflet supplied with your pack. Follow these steps for correct use:

  1. Open the blister pack carefully and remove one tablet
  2. Place the tablet on your tongue
  3. Allow it to dissolve completely — do not chew or swallow whole
  4. No water is needed, but you may drink water if you prefer
  5. Take the initial dose as directed below, then follow with one tablet after each loose stool
Indication Age Group Initial Dose Subsequent Dose Maximum Daily Dose
Acute diarrhoea Adults (18+) 2 tablets (4mg) 1 tablet after each loose stool 8 tablets (16mg)
Acute diarrhoea 12–17 years 1 tablet (2mg) 1 tablet after each loose stool 6 tablets (12mg)

Stop taking the tablets and seek medical advice if diarrhoea has not improved within 48 hours. Staying hydrated is essential — the NHS recommends drinking plenty of fluids to replace those lost through diarrhoea. You may also find it helpful to browse our sickness and nausea collection if you're experiencing vomiting alongside diarrhoea.

 

What Are the Possible Side Effects of Imodium Instant On the Go?

 

Like all medicines, loperamide can cause side effects, although not everyone experiences them. Most side effects are mild and resolve once you stop taking the tablets.

Common side effects:

  • Constipation
  • Abdominal cramping or discomfort
  • Nausea
  • Flatulence (wind)
  • Headache

Less common side effects:

  • Dizziness or drowsiness
  • Dry mouth
  • Skin rash or itching
  • Urinary retention (difficulty passing urine)
  • Abdominal bloating

If you experience a severe allergic reaction — including swelling of the face, lips, or throat, or difficulty breathing — stop taking the tablets immediately and seek emergency medical help. Serious cardiac events have been reported with very high doses of loperamide above the recommended maximum; never exceed the stated dose. If you're also managing travel-related health concerns, our travel health collection has a range of relevant products.

 

How Should You Store Imodium Instant On the Go?

 

  • Store below 25°C in a dry place
  • Keep away from direct sunlight and sources of heat
  • Keep in the original blister packaging to protect from moisture
  • Keep out of the sight and reach of children
  • Do not use after the expiry date printed on the pack
  • Do not dispose of medicines via wastewater or household waste — return unused tablets to your pharmacy

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Imodium Instant On the Go tablets online in the UK?

You can buy Imodium Instant On the Go 12 orodispersible tablets directly from Cured Pharmacy, a GPhC-registered UK online pharmacy. No prescription is needed as this is an over-the-counter medicine. Simply add to your basket and choose your preferred delivery option. You can also browse our full diarrhoea collection for related products.

How do Imodium Instant On the Go tablets work in the body?

The active ingredient, loperamide hydrochloride 2mg, binds to mu-opioid receptors in the gut wall, slowing intestinal contractions and allowing more water to be reabsorbed from the bowel contents. This reduces the frequency and urgency of loose stools. Loperamide acts locally in the gut and does not significantly cross the blood-brain barrier at recommended doses.

How do I use Imodium Instant On the Go tablets step by step?

Remove a tablet from the blister pack and place it directly on your tongue — it will dissolve within seconds without needing water. Adults should take 2 tablets (4mg) as the first dose, then 1 tablet after each subsequent loose stool. Do not exceed 8 tablets in 24 hours and stop use if symptoms have not improved within 48 hours.

What is the maximum daily dose of Imodium Instant On the Go for adults?

The maximum dose for adults aged 18 and over is 8 tablets (16mg) in any 24-hour period. For young people aged 12 to 17, the maximum is 6 tablets (12mg) per day. Never exceed these limits, as taking too much loperamide can cause serious heart rhythm problems.

What are the side effects of Imodium Instant On the Go tablets?

Common side effects include constipation, abdominal cramping, nausea, flatulence, and headache. Less commonly, you may experience dizziness, dry mouth, or a skin rash. If you develop signs of a severe allergic reaction — such as facial swelling or difficulty breathing — stop taking the tablets and seek emergency help immediately.

Who should not take Imodium Instant On the Go tablets?

These tablets are not suitable for children under 12 years of age, people with bloody or black stools, those with a high fever, or anyone with acute ulcerative colitis or paralytic ileus. If you are pregnant, breastfeeding, or have liver disease, speak to your GP or pharmacist before use.

Can I take Imodium Instant On the Go tablets during pregnancy?

Loperamide is not recommended during pregnancy, particularly in the first trimester, unless advised by a doctor. If you are pregnant and experiencing diarrhoea, the priority is staying well hydrated and seeking medical advice before taking any antidiarrhoeal medicine. Your GP or midwife can advise on the safest approach for your situation.

Are Imodium Instant On the Go tablets suitable for traveller's diarrhoea?

Yes — the orodispersible format makes these tablets especially convenient for travel, as no water is required to take them. They are widely used to manage acute traveller's diarrhoea in adults and young people aged 12 and over. For other travel health essentials, explore our travel health collection.

What happens if diarrhoea does not improve after 48 hours of taking Imodium Instant?

If your symptoms have not improved within 48 hours, stop taking the tablets and contact your GP or call NHS 111. Persistent diarrhoea can lead to dehydration and may indicate an underlying infection or condition that requires further investigation. Do not continue taking loperamide beyond 48 hours without medical advice.

Do Imodium Instant On the Go tablets interact with other medicines?

Yes, loperamide can interact with certain medicines including quinidine, ritonavir, and itraconazole, all of which may increase loperamide levels in the blood. Always tell your pharmacist about any other medicines, supplements, or herbal remedies you are taking before starting loperamide. This is especially important if you take medicines for heart rhythm problems or HIV.

How long can you take Imodium Instant On the Go tablets for?

These tablets are intended for short-term use only — typically no longer than 48 hours for acute diarrhoea without medical supervision. If you find you need antidiarrhoeal medicine regularly or for longer periods, speak to your GP, as this may indicate an underlying digestive condition such as IBS. Long-term use without medical guidance is not recommended.

What are the alternatives to Imodium Instant On the Go tablets?

Alternatives include standard Imodium capsules (loperamide 2mg, swallowed with water), Imodium Plus (loperamide with simeticone for cramps and wind), and oral rehydration salts such as Dioralyte for replacing lost fluids and electrolytes. The right choice depends on your symptoms — a pharmacist can help you decide. You can also explore our full range in the diarrhoea collection.

Can children take Imodium Instant On the Go tablets?

No — these tablets are not suitable for children under 12 years of age. For children under 12 with diarrhoea, the NHS recommends focusing on oral rehydration and seeking medical advice if symptoms are severe or prolonged. Always consult a GP or pharmacist before giving any antidiarrhoeal medicine to a child.

What is the best time to take Imodium Instant On the Go tablets?

Take the initial dose as soon as diarrhoea begins, then take one tablet after each subsequent loose stool throughout the day as needed. There is no specific time of day that is better than another — the key is to respond promptly to symptoms and not delay treatment when diarrhoea starts. Always stay well hydrated alongside taking the tablets.

What are the latest findings on loperamide safety at recommended doses?

At recommended over-the-counter doses, loperamide is considered safe and well tolerated for short-term use in adults and children aged 12 and over. Regulatory bodies including the MHRA have issued guidance highlighting that serious cardiac effects are associated only with doses significantly above the recommended maximum. Always follow the dosage instructions on the pack and never exceed the stated daily limit.

How Should You Use Imodium Instant On the Go?

Using Imodium Instant On the Go is straightforward, but it's worth following the correct steps to get the most from each tablet. Unlike standard capsules, these orodispersible tablets are designed to dissolve on your tongue — no water, no swallowing difficulty.

Always read the patient information leaflet included in your pack before starting treatment. If you have any questions about how to use this medicine, your pharmacist is the best person to ask.

What Is the Correct Dose of Imodium Instant On the Go?

The dose varies depending on your age. Always start with the initial dose and then take one tablet after each subsequent loose stool — do not take tablets preventatively or on a fixed schedule. The table below summarises the recommended dosing.

When Is the Best Time to Use Imodium Instant On the Go?

Take the initial dose as soon as diarrhoea begins — there is no need to wait and see if symptoms resolve on their own if they are causing you significant discomfort or disruption. Subsequent doses should be taken after each loose stool, not at fixed intervals. Alongside taking the tablets, make sure you are drinking plenty of fluids to stay hydrated, as diarrhoea causes significant fluid and electrolyte loss.

If you are travelling and anticipate limited access to facilities, having the tablets ready in your bag means you can act quickly when symptoms start. The orodispersible format is particularly useful in situations where drinking water may not be immediately available.

How Long Can You Use Imodium Instant On the Go For?

These tablets are intended for short-term use only. For acute diarrhoea, do not take them for more than 48 hours without seeking medical advice. If your symptoms have not improved within this time, stop taking the tablets and contact your GP or call NHS 111. Prolonged or recurrent diarrhoea may indicate an underlying condition that requires proper investigation and treatment.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

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What Are the Most Common Side Effects of Imodium Instant On the Go?

Most people tolerate loperamide well at recommended doses, but some side effects can occur. Common side effects tend to be mild and often resolve once your diarrhoea has settled and you stop taking the tablets.

  • Constipation — the most frequently reported effect, as loperamide slows gut movement
  • Abdominal cramping or discomfort
  • Nausea
  • Flatulence (wind)
  • Headache

What Are the Less Common Side Effects of Imodium Instant On the Go?

A smaller number of people may experience less common side effects. These are generally not serious but should be monitored, particularly if they worsen or persist after stopping the tablets.

  • Dizziness or drowsiness
  • Dry mouth
  • Skin rash, itching, or hives
  • Urinary retention (difficulty passing urine)
  • Abdominal bloating or distension

What Are the Serious Side Effects of Imodium Instant On the Go?

Serious side effects are rare at recommended doses but can occur, particularly if the maximum daily dose is exceeded. The MHRA has highlighted that taking loperamide at doses significantly above the recommended maximum can cause serious and potentially life-threatening heart rhythm problems, including QT prolongation and ventricular arrhythmias. This is why it is critical never to exceed 8 tablets (16mg) in 24 hours for adults.

A severe allergic reaction (anaphylaxis) is also possible, though uncommon. Signs include swelling of the face, lips, tongue, or throat, difficulty breathing, and a sudden drop in blood pressure. This requires immediate emergency medical attention — call 999 without delay.

What Should You Do If You Experience Side Effects?

If you develop mild side effects such as constipation or nausea, these will usually resolve once you stop taking the tablets. Staying well hydrated and eating small, plain meals can help. If side effects are troublesome or do not improve, contact your pharmacist for advice. For any signs of a serious reaction — particularly chest pain, irregular heartbeat, or difficulty breathing — stop taking the tablets immediately and seek emergency help.

You can also report suspected side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk. This helps regulators monitor the safety of medicines in real-world use.

Can Imodium Instant On the Go Interact With Other Medicines?

Yes. Loperamide is known to interact with several medicines that affect how it is processed in the body. Quinidine, ritonavir, and itraconazole can all increase loperamide plasma concentrations, raising the risk of side effects including cardiac effects. Other medicines that slow gut motility may have an additive effect when taken alongside loperamide. Always inform your pharmacist of all medicines, supplements, and herbal remedies you are currently taking before starting this product.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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