Skip to product information
1 of 1

  • Images are for illustration purposes only

Imodium Instant Melts

Imodium Instant Melts

  • 1. Ozempic®️-equivalent therapy now available for weight management
  • 2. Average weight loss of 17%, with 1 in 3 patients achieving over 20%
  • 3. May help reduce osteoarthritis-related pain
  • 4. Wegovy®️ is not expected to impact the effectiveness of oral contraceptives
  • 5. Supports cardiovascular risk reduction
  • 6. Over 22 million patients treated with semaglutide-based therapies since 2018

  • ✔️ Dissolves on the tongue — no water needed, anytime, anywhere
  • ✔️ Contains loperamide 2mg to slow gut motility and reduce loose stools
  • ✔️ Relieves acute diarrhoea and IBS-associated diarrhoea in adults
  • ✔️ Sugar-free and mint-flavoured for a more comfortable experience
  • ✔️ Suitable from age 12 for acute diarrhoea relief

Price Checker

Regular price £4.99
Sale price £4.99
Sale Sold out
  • Lowest price guarantee
  • Includes FREE private prescription
View full details

 

What Are Imodium Instant Melts and How Do They Help With Diarrhoea?

 

Imodium Instant Melts are sugar-free, mint-flavoured orodispersible tablets designed to dissolve on your tongue without the need for water. Each tablet contains 2mg of loperamide hydrochloride — a well-established active ingredient used for the symptomatic relief of acute diarrhoea. Whether you're caught short at work, mid-flight, or on a beach holiday, the dissolve-on-tongue format makes these tablets genuinely convenient. You can browse our full range of diarrhoea treatments if you'd like to compare options before buying.

Diarrhoea affects most people at some point — the NHS estimates it typically lasts two to four days in adults. It can be caused by a viral or bacterial infection, food intolerance, anxiety, or conditions like irritable bowel syndrome (IBS). Imodium Instant Melts offer targeted, short-term relief so you can get on with your day.

 

How Do Imodium Instant Melts Work in the Gut?

 

Loperamide, the active ingredient, works by binding to opioid receptors in the wall of the large intestine. Unlike opioid painkillers, it does not cross the blood-brain barrier at therapeutic doses, so it has no central nervous system effects. Here's what happens once you take a tablet:

  • Loperamide slows the muscular contractions (peristalsis) that move contents through the bowel
  • It reduces the secretion of fluid and electrolytes into the gut
  • It increases the tone of the anal sphincter, helping to reduce urgency
  • The result is firmer, less frequent stools and reduced cramping

The orodispersible format means the tablet dissolves rapidly on the tongue, making it easy to take even when you have no access to a drink — a real advantage when you're travelling.

 

Who Should Use Imodium Instant Melts?

 

These tablets are suitable for adults and young people aged 12 and over for acute diarrhoea, and for adults aged 18 and over for IBS-associated diarrhoea (provided a doctor has already confirmed the IBS diagnosis). They're particularly useful for:

  • Adults experiencing sudden-onset acute diarrhoea
  • Travellers dealing with holiday or traveller's diarrhoea
  • Adults with a confirmed IBS diagnosis who experience diarrhoea-predominant symptoms
  • Anyone who struggles to swallow conventional tablets

If you're heading abroad and want to be prepared, our travel health collection includes a range of products to keep you covered on holiday.

 

How Do Imodium Instant Melts Compare to Standard Imodium Capsules?

 

Feature Imodium Instant Melts Imodium Original Capsules
Active ingredient Loperamide 2mg Loperamide 2mg
Formulation Orodispersible tablet (dissolves on tongue) Hard capsule (swallowed with water)
Water required? No Yes
Suitable for those with swallowing difficulties? Yes Less suitable
Sugar-free? Yes Yes
Flavour Mint Unflavoured

 

Are Imodium Instant Melts Suitable for People With Specific Health Conditions?

 

You should not use Imodium Instant Melts if you have bloody or black stools, a high fever alongside diarrhoea, or if you are experiencing symptoms that could indicate a more serious bowel condition. People with liver disease should use loperamide with caution, as the drug is extensively metabolised by the liver. If you have ulcerative colitis or any form of inflammatory bowel disease, always speak to your gastroenterologist before using any antidiarrhoeal medicine.

For those managing gut-related conditions more broadly, our IBS and cramps collection includes a range of products that may help alongside lifestyle changes. Always check with your pharmacist if you are taking other medicines, particularly quinidine or ritonavir, as these can increase loperamide levels in the blood.

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 Melts specifications
Treatment category Antidiarrhoeal
Mechanism of action Opioid receptor agonist (peripheral); slows intestinal motility and reduces fluid secretion
Effective for Acute diarrhoea; diarrhoea associated with IBS
Suitable for Adults and children aged 12+ (acute diarrhoea); adults 18+ (IBS-related diarrhoea)
Active ingredient Loperamide hydrochloride 2mg
Pack sizes 6 tablets, 12 tablets
Strengths 2mg per tablet
UK classification Pharmacy (P) medicine
Drug class Antidiarrhoeal — peripheral opioid receptor agonist
Preparation Orodispersible tablet
Route of administration Oral (placed on tongue to dissolve)

Specifications of Imodium Instant Melts

 

What Are Imodium Instant Melts and What Are They Used For?

 

Imodium Instant Melts contain loperamide hydrochloride 2mg in an orodispersible tablet format. They are used for the short-term symptomatic relief of acute diarrhoea in adults and children aged 12 and over. They are also indicated for the relief of diarrhoea associated with irritable bowel syndrome (IBS) in adults aged 18 and over, where a confirmed diagnosis has been made by a doctor. The NHS describes diarrhoea as passing looser or more frequent stools than is normal for you — a common complaint that can be caused by infection, food, stress, or underlying gut conditions.

 

What Do You Need to Know Before Using Imodium Instant Melts?

 

Do not use Imodium Instant Melts if any of the following apply to you:

  • You are under 12 years of age (or under 18 for IBS use)
  • Your stools are bloody or black and tarry
  • You have a high temperature (fever) alongside diarrhoea
  • You have been diagnosed with ulcerative colitis or another inflammatory bowel disease
  • You have liver disease or severe hepatic impairment
  • You are pregnant or breastfeeding (seek medical advice first)
  • You are allergic to loperamide or any other ingredient in the tablet

The following medicines may interact with loperamide and should be discussed with your pharmacist or GP before use:

  • Quinidine (used for heart rhythm problems) — may increase loperamide blood levels
  • Ritonavir (an HIV medicine) — may significantly raise loperamide plasma concentrations
  • Other medicines that slow gut motility — additive effects possible

 

How Should You Use Imodium Instant Melts Correctly?

 

Using these tablets is straightforward, but it's important to follow the correct steps to get the most benefit and avoid overuse.

  1. Wash and dry your hands before handling the tablet
  2. Open the blister pack carefully and place one tablet on your tongue
  3. Allow the tablet to dissolve completely — do not chew or swallow it whole
  4. No water is needed, making it ideal for use on the go
  5. Follow the dosage guidance below and do not exceed the stated dose
Indication Age Group Starting Dose Subsequent Dose Maximum Daily Dose
Acute diarrhoea Adults & children 12+ 2 tablets (4mg) 1 tablet after each loose stool 4 tablets (8mg)
IBS-related diarrhoea Adults 18+ 1 tablet (2mg) 1 tablet after each loose stool 4 tablets (8mg)

If diarrhoea does not improve within 48 hours of starting treatment, stop use and consult your GP. Staying hydrated is essential — the NHS recommends drinking plenty of fluids to replace those lost through diarrhoea, particularly water, diluted squash, or oral rehydration solutions.

 

What Are the Possible Side Effects of Imodium Instant Melts?

 

Like all medicines, loperamide can cause side effects, although not everyone experiences them. If you're also managing other gut symptoms, our indigestion collection may offer additional support alongside your diarrhoea treatment.

Common side effects (may affect up to 1 in 10 people):

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

Less common side effects (may affect up to 1 in 100 people):

  • Dizziness or drowsiness
  • Dry mouth
  • Skin rash or itching
  • Vomiting
  • Abdominal bloating

Rarely, serious allergic reactions (anaphylaxis) or severe skin reactions have been reported with loperamide. Stop use immediately and seek emergency medical help if you develop swelling of the face, lips, or throat, difficulty breathing, or a widespread skin rash.

 

How Should You Store Imodium Instant Melts?

 

Correct storage helps maintain the quality and effectiveness of the tablets. Follow these guidelines:

  • Store below 25°C in a cool, dry place
  • Keep away from direct sunlight and moisture
  • Keep the tablets in their original blister packaging until use
  • 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

If you're stocking up your travel medicine kit, it's worth pairing these with other essentials. Our sickness and nausea collection has everything you might need for a well-prepared holiday first aid kit.

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 Melts online in the UK?

You can buy Imodium Instant Melts from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £4.99. They are classed as a Pharmacy (P) medicine, so they are available without a prescription. You can also find them in most UK high street pharmacies and larger supermarkets.

How do Imodium Instant Melts work in the body?

Imodium Instant Melts contain loperamide hydrochloride, which binds to opioid receptors in the gut wall to slow intestinal movement and reduce fluid secretion into the bowel. This helps to firm up loose stools and reduce the frequency of bowel movements. Importantly, loperamide does not cross the blood-brain barrier at normal doses, so it has no sedative or addictive effects.

How do I use Imodium Instant Melts step by step?

Simply place one tablet on your tongue and allow it to dissolve — no water is needed. For acute diarrhoea, adults should take 2 tablets initially, then 1 tablet after each loose stool, up to a maximum of 4 tablets in 24 hours. Do not chew or swallow the tablet whole; let it dissolve naturally on your tongue.

What is the correct dose of Imodium Instant Melts for adults?

For acute diarrhoea, the starting dose for adults is 2 tablets (4mg), followed by 1 tablet (2mg) after each subsequent loose stool. The maximum dose is 4 tablets (8mg) in any 24-hour period. For IBS-related diarrhoea, the starting dose is lower — 1 tablet (2mg) — so always read the patient information leaflet carefully.

Can children use Imodium Instant Melts?

Imodium Instant Melts can be used by young people aged 12 and over for acute diarrhoea, but they must not be given to children under 12. For IBS-related diarrhoea, the tablets are only suitable for adults aged 18 and over. If your child under 12 has diarrhoea, speak to your GP or pharmacist about age-appropriate treatments — you can also explore our baby and toddler health range for suitable options.

Can I take Imodium Instant Melts if I have IBS?

Yes — Imodium Instant Melts are licensed for the symptomatic relief of diarrhoea associated with irritable bowel syndrome in adults aged 18 and over. However, you must have a confirmed IBS diagnosis from a doctor before using them for this purpose. If you haven't been formally diagnosed, see your GP first, as diarrhoea can have other causes that need investigation.

Are Imodium Instant Melts safe to use during pregnancy?

Loperamide is not recommended during pregnancy, especially during the first trimester, as there is limited safety data available. If you are pregnant or breastfeeding and experiencing diarrhoea, speak to your GP or midwife before taking any antidiarrhoeal medicine. Staying well hydrated is the most important immediate step.

What are the side effects of Imodium Instant Melts?

The most common side effects include constipation, flatulence, abdominal cramping, nausea, and headache. Less commonly, some people experience dizziness, dry mouth, or a skin rash. If you develop signs of a serious allergic reaction — such as swelling of the face or difficulty breathing — stop use immediately and call 999.

How long can you take Imodium Instant Melts for?

For acute diarrhoea, you should not use Imodium Instant Melts for more than 48 hours without seeking medical advice. If symptoms persist beyond this point, see your GP, as the underlying cause may need investigation. For IBS-related diarrhoea, use should be limited to short-term symptom management unless a doctor advises otherwise.

What happens if I take too many Imodium Instant Melts?

Taking more than the recommended dose can cause serious side effects including severe constipation, abdominal bloating, and in rare cases, heart rhythm problems. If you think you or someone else has taken too many tablets, contact NHS 111 or go to your nearest A&E immediately. Always keep medicines out of reach of children.

What are the alternatives to Imodium Instant Melts?

Alternatives include standard Imodium capsules (also containing loperamide 2mg but in a swallowable capsule format), Imodium Plus (which combines loperamide with simeticone for wind relief), and oral rehydration salts such as Dioralyte to replace lost fluids and electrolytes. You can explore the full range in our diarrhoea treatments collection.

Can I use Imodium Instant Melts for traveller's diarrhoea?

Yes — Imodium Instant Melts are widely used for traveller's diarrhoea, which is one of the most common health complaints affecting people travelling to certain parts of the world. The no-water-needed format makes them particularly practical when you're on the move. However, if you develop a high fever or blood in your stools alongside diarrhoea while abroad, seek medical attention rather than self-treating.

Do Imodium Instant Melts interact with any other medicines?

Yes — loperamide can interact with quinidine (used for heart arrhythmias) and ritonavir (an antiretroviral HIV medicine), both of which can raise loperamide blood levels and increase the risk of side effects. Always tell your pharmacist about all medicines you are taking, including over-the-counter products and supplements, before starting Imodium Instant Melts.

Are Imodium Instant Melts suitable for people with liver disease?

Loperamide is extensively metabolised by the liver, so people with hepatic impairment should use it with caution and only under medical supervision. If you have liver disease, speak to your GP or pharmacist before using any loperamide-containing product. They can advise on whether it is safe for you and at what dose.

What is the latest guidance on using loperamide safely?

The MHRA has previously issued guidance reminding patients and healthcare professionals that loperamide should only be used at recommended doses, as higher-than-recommended doses have been associated with serious cardiac events. Always follow the dosage instructions on the pack and never exceed the stated maximum. The NHS and BNF both support loperamide as a safe and effective antidiarrhoeal when used correctly at licensed doses.

How Should You Use Imodium Instant Melts?

Imodium Instant Melts are designed to be taken without water, making them one of the most convenient antidiarrhoeal formats available. The tablet dissolves directly on your tongue, so there's no need to find a drink before you can take a dose — ideal when you're travelling, at work, or simply caught off guard.

Follow these steps each time you take a dose:

What Is the Correct Dose of Imodium Instant Melts?

Always follow the dosage instructions on the pack or as directed by your pharmacist. Do not exceed the maximum daily dose under any circumstances, as higher doses of loperamide have been associated with serious side effects.

When Is the Best Time to Use Imodium Instant Melts?

Take Imodium Instant Melts as soon as diarrhoea begins — there is no need to wait for symptoms to worsen before taking the first dose. For acute diarrhoea, the initial double dose (2 tablets) should be taken at the onset of symptoms, with subsequent single doses taken only after each loose stool. You do not need to take a dose if your next bowel movement is normal.

If you are using these tablets to manage IBS-related diarrhoea, you may find it helpful to take a tablet before situations that typically trigger symptoms — such as before a meal or before travelling — but always stay within the maximum daily dose.

How Long Can You Use Imodium Instant Melts For?

For acute diarrhoea, treatment should not continue for more than 48 hours without medical review. If your symptoms have not improved within this time, stop taking the tablets and consult your GP, as the cause of your diarrhoea may need further investigation. Prolonged diarrhoea can lead to dehydration and electrolyte imbalance, which may require medical treatment.

For IBS-related diarrhoea, Imodium Instant Melts are intended for short-term, intermittent use to manage flare-ups. They are not a long-term solution for IBS management. If you find yourself relying on them frequently, speak to your GP about a broader IBS management plan.

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

Customer Reviews

Based on 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
A
Anonymous

Excellent service good product

What Are the Most Common Side Effects of Imodium Instant Melts?

Most people tolerate Imodium Instant Melts well when taken at the recommended dose. However, as with any medicine, side effects can occur. The most frequently reported ones are related to the way loperamide slows gut movement — which is, of course, how it works, but can sometimes go a little too far.

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

What Are the Less Common Side Effects of Imodium Instant Melts?

Less common side effects affect fewer people but are still worth being aware of. If any of the following persist or feel severe, stop using the tablets and speak to your pharmacist or GP.

  • Dizziness or drowsiness
  • Dry mouth
  • Vomiting
  • Abdominal bloating or distension
  • Skin rash or itching
  • Indigestion

What Are the Serious Side Effects of Imodium Instant Melts?

Serious side effects are rare when loperamide is used at the recommended dose, but they can occur. The MHRA has highlighted that taking loperamide at doses higher than recommended can cause serious cardiac events, including changes in heart rhythm (QT prolongation and Torsades de Pointes). This is why it is critical never to exceed the stated maximum daily dose of 8mg (4 tablets) for self-treatment.

Seek emergency medical help immediately if you experience any of the following:

  • Swelling of the face, lips, tongue, or throat (signs of anaphylaxis)
  • Difficulty breathing or swallowing
  • Widespread skin rash, blistering, or peeling
  • Chest pain or an irregular heartbeat
  • Severe abdominal pain or bloating that does not resolve

What Should You Do If You Experience Side Effects of Imodium Instant Melts?

For mild side effects such as constipation or wind, these often resolve on their own once you stop taking the tablets. Drinking plenty of water and eating a light, easily digestible diet can help. If constipation becomes uncomfortable, speak to your pharmacist about suitable short-term relief options.

If you experience any side effect that concerns you — even if it's not listed here — stop using the product and contact your pharmacist or GP. You can also report suspected side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk.

Can Imodium Instant Melts Interact With Other Medicines?

Yes — loperamide can interact with certain medicines, which may increase the amount of loperamide in your bloodstream and raise the risk of side effects. Known interactions include quinidine (used for heart arrhythmias) and ritonavir (an antiretroviral used in HIV treatment). Both of these medicines inhibit the enzymes and transporters that normally clear loperamide from the body. If you are taking either of these — or any other regular medication — always check with your pharmacist before using Imodium Instant Melts.

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

We’re a safe and
regulated UK service

Registered Pharmacy Badge

Lowest Price Guarantee

We're convinced you won't find your treatment cheaper, but if you do we'll refund the difference.

Find out more

100% discreet packaging

We're convinced you won't find your treatment cheaper, but if you do we'll refund the difference.

Find out more

Agent

Need help?
Talk to our friendly experts now

How our service works

Service Setup

Service setup

Discreet Packaging

Discreet packaging

Express Delivery

Express delivery