Loperamide for diarrhoea
Imodium, Norimode
Granskad av Sid DajaniSenast uppdaterad av Michael Stewart, MRPharmSLast updated 13 Oct 2023
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For adults with acute diarrhoea: take two tablets/capsules as soon as possible; then take one tablet/capsule after each time you go to the toilet with diarrhoea.
Have lots of water to drink to prevent you from becoming dehydrated. Eat as normally as possible, as soon as you feel able.
If your symptoms continue for more than 48 hours, speak with your doctor or pharmacist for advice if you have not already done so.
Loperamide must not be taken by children under 12 years of age unless it is prescribed for them by a doctor.
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What is loperamide?
Typ av medicin | An antimotility medicine |
Används för | Acute diarrhoea |
Även kallad | Imodium®; Loritax®; Norimode® |
Tillgänglig som | Capsules, tablets and 'instant' (dissolve-in-the-mouth) tablets |
Loperamide is a medicine that can help if you have acute diarrhoea. Acute diarrhoea in adults starts suddenly and in most cases eases within a few days. The main treatment is to have lots to drink to prevent dehydration. The most common cause of acute diarrhoea is an infection. Many bacteria, viruses, and other germs can cause diarrhoea. In most cases the diarrhoea settles as your body's immune system clears the infection. Antidiarrhoeal medicines like loperamide may not be necessary; however, they can be helpful if you wish to reduce the number of trips that you need to make to the toilet. Most people only need to take loperamide for a day or so.
Loperamide works by slowing down the activity of your bowel. This reduces the speed at which the contents pass through, and so food remains in your intestines for longer. This allows more water to be absorbed back into your body and results in firmer stools that are passed less often.
Because loperamide regulates the passage of food through the digestive system, it can also help people with diarrhoea associated with irritable bowel syndrome, and people who need help to regulate their bowel movement following surgery on the intestines.
You can buy loperamide from retail outlets or get it on prescription from your doctor; however, it is not suitable for children under the age of 12 years unless it has been prescribed by a doctor.
Before taking loperamide
Tillbaka till innehållTo make sure this is the right treatment for you, before you start taking loperamide it is important that you speak with your doctor or pharmacist:
Om du är gravid eller ammar.
If you have liver problems.
If you have a long-term bowel condition such as ulcerative colitis.
Om du tar några andra läkemedel. Detta inkluderar alla läkemedel du tar som finns att köpa utan recept, samt växtbaserade och komplementära läkemedel.
Om du någonsin har haft en allergisk reaktion mot en medicin.
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How to take loperamide
Tillbaka till innehållBefore you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about loperamide and will provide you with a full list of the side-effects which you may experience from taking it.
Take loperamide exactly as your doctor tells you to, or as directed on the label. The usual dose for acute diarrhoea in an adult is 4 mg (two tablets/capsules) taken straightaway, followed by 2 mg (one tablet/capsule) after each time you go to the toilet with diarrhoea. This usually means taking three or four tablets/capsules a day. Never take more than eight tablets/capsules a day. If your symptoms continue for more than 48 hours, you should speak with a doctor if you have not already done so. Stop taking loperamide as soon as your symptoms settle down.
Most loperamide capsules and tablets are best swallowed with a drink of water. However, if you have been given a brand called Imodium® Instants, these are specially designed to dissolve in your mouth - place the tablet on your tongue and allow it to dissolve there before you swallow.
Loperamide should only be taken by a child younger than 12 years of age on the advice of a doctor. If your child has been prescribed loperamide liquid medicine, check the label on the bottle carefully to make sure you know what dose to give.
If you forget to take a dose, do not worry, just take a dose after the next time you go to the toilet with diarrhoea. Do not take two doses together to make up for a missed dose.
Få ut det mesta av din behandling
Tillbaka till innehållIt is important that you have lots to drink to prevent you from becoming dehydrated. Drinking plain water is ideal, but juice and/or soup are also suitable. Try to avoid drinks that contain a lot of sugar, such as cola or pop, as they can sometimes make diarrhoea worse.
Oral rehydration salts can be taken to help prevent dehydration and replace lost salts. These are especially recommended for children and for people who are frail or who have underlying health problems. You can buy these from a pharmacy.
Eat small, light meals as soon as you are able. Plain foods such as bread and rice are good foods to try eating first.
If your symptoms continue for more than 48 hours, speak with a doctor or pharmacist for advice if you have not already done so. If loperamide has been prescribed by your doctor and your diarrhoea has not settled after five days, you should return to your doctor for further advice.
If your symptoms get worse, or if you develop a high temperature, or if you pass blood in the diarrhoea, you should consult a doctor for advice as soon as possible.
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Can loperamide cause problems?
Tillbaka till innehållAlong with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the most common ones associated with loperamide. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.
Common loperamide side-effects (these affect fewer than 1 in 10 people) | Vad kan jag göra om jag upplever detta? |
Förstoppning | Stop taking loperamide |
Wind (flatulence), feeling dizzy | This should soon pass. If it becomes troublesome, stop taking loperamide |
Huvudvärk | Drink plenty of water and ask your pharmacist to recommend a suitable painkiller. |
Känner dig illamående (nausea) | Try taking loperamide after eating some food if you are not already doing so |
If you experience any other symptoms which you think may be due to loperamide, speak with your doctor or pharmacist for further advice.
How to store loperamide
Tillbaka till innehållKeep all medicines out of the sight and reach of children.
Förvara på en sval, torr plats, borta från direkt värme och ljus.
Viktig information om alla läkemedel
Tillbaka till innehållViktig information om alla läkemedel
Ta aldrig mer än den föreskrivna dosen. Om du misstänker att du eller någon annan kan ha tagit en överdos av denna medicin, gå till akutmottagningen på ditt lokala sjukhus. Ta med behållaren, även om den är tom.
Om du ska genomgå en operation eller tandbehandling, informera den som utför behandlingen om vilka mediciner du tar.
Om du köper några läkemedel, kontrollera med en apotekare att de är lämpliga att ta tillsammans med dina andra läkemedel.
Denna medicin är för dig. Ge den aldrig till andra människor även om deras tillstånd verkar vara detsamma som ditt.
Behåll inte föråldrade eller oönskade mediciner. Ta dem till ditt lokala apotek som kommer att ta hand om dem åt dig.
Om du har några frågor om denna medicin, fråga din apotekare.
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Vidare läsning och referenser
- Manufacturer's PIL, Imodium® Classic 2 mg Capsules; McNeil Products Ltd, The electronic Medicines Compendium. Dated October 2022.
- Manufacturer's PIL, Imodium® Instant Melts; McNeil Products Ltd, The electronic Medicines Compendium. Dated October 2022.
- Mediciner Komplett BNF 89:e Utgåvan; Brittiska Läkarföreningen och Kungliga Farmaceutiska Sällskapet i Storbritannien, London.
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Artikelhistorik
Informationen på denna sida är skriven och granskad av kvalificerade kliniker.
Next review due: 12 Oct 2026
13 Oct 2023 | Senaste versionen

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