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Imodium Syrup SF

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About Product
Mohamed Imran Lakhi
This content has been written and checked for quality and accuracy by
Mohamed Imran Lakhi Content Administrator GPhC: 2060586 Updated on: 26/05/2020 Next review: 26/11/2020

Buy Imodium Syrup SF Online

Imodium Syrup SF is an antidiarrhoeal oral solution for treating acute or chronic diarrhoea in adults.

You can safely buy Imodium Syrup online from Prescription Doctor. Our secure and confidential service puts you in touch with doctors, who are able to assess your condition and appropriately prescribe the safest treatment for you. Our excellent customer service team are on hand to help with any concerns you may have.

If your order is approved by one of our certified doctors before 3pm weekdays, our pharmacy will dispense and dispatch your order in discreet, tamper-proof packaging via a next-day tracked courier service. Our UK regulated pharmacy stocks genuine medicine which has been licensed for use in the UK, including popular brands from Pfizer and GSK

We have been rated 4.7 out of 5 on TrustPilot.

What causes diarrhoea?

Diarrhoea is the passing of loose or watery stools more regularly than normal. It usually happens when your bowels are unable to absorb fluid back into your body properly, causing excessive water to come out with your stool.

Certain factors, such as bacteria or viral infections, food intolerances or diet can interfere with the bowel movements in some people, causing symptoms such as diarrhoea, among other conditions.

Why is it important to treat diarrhoea?

Diarrhoea causes the body to lose fluids, which can result in dehydration. Symptoms of dehydration can include:

  • Dizziness
  • Dry mouth
  • Dry skin
  • Fainting
  • Faster breathing
  • Headaches
  • Increased heartbeat
  • Muscle cramps
  • Sunken eyes

Treating diarrhoea can greatly reduce the risk of experiencing dehydration.

How does Imodium Syrup SF Work?

Imodium Syrup contains the active ingredient loperamide hydrochloride. Loperamide is a type of medicine which works against certain receptors in the bowels in order to decrease the tone of the muscles in the intestinal wall.

This action works to slow down the movements of the bowel, allowing the body to absorb water and thicken your stools.

How long does the effect of Imodium Syrup last?

The effect of Imodium Syrup should last between 8 and 12 hours. If taken in the morning, Imodium Syrup should provide all-day relief from diarrhoea.

Imodium Syrup only treats the diarrhoea symptoms and does not replenish the body with water or salts, which are typically lost during several episodes of diarrhoea. It is important to drink more fluids than normal when treating diarrhoea with loperamide.

How do I use Imodium Syrup SF?

Follow your physician's instructions carefully when you take Imodium Syrup SF. Imodium Syrup SF comes with a measuring cup with a 5 ml line. Set the measuring cup on a stable surface with the arrow pointing upward.

Pour the designated amount of solution into the cup, stopping when the fluid reaches the appropriate measuring line. For example, if your doctor says to take a 5 ml dose, stop pouring when the fluid line reaches the 5 ml mark on the cup.

The amount you take is related to whether the diarrhoea attack is sudden (acute) or it comes and goes over a period of time (chronic). For this reason, it is important to take the amount prescribed by your doctor.

Typical doses are:

  • For an adult with acute diarrhoea - four 5 ml portions at once for the initial dose.Take an additional two 5 ml doses after each diarrhoea episode until it stops. Avoid taking more than sixteen 5 ml doses in a day.
  • Adults with chronic diarrhoea - Unless otherwise directed by your doctor, take four to eight 5 ml doses throughout the day. Do not take more than 16 doses in one day.

Your diarrhoea symptoms should improve within two days after the first dose. If not, stop taking Imodium Syrup and contact your doctor.

What should I do if I forget to take a dose of Imodium Syrup?

If you forget to take Imodium Syrup, take the dose as soon as you remember. If it is almost time for your next dose, skip the missed dose of Imodium Syrup.

Do not take more Imodium Syrup to make up for a missed dose.

What should I do if I take too much Imodium Syrup?

If you take too much Imodium Syrup, seek help at the hospital casualty department, especially if you feel like your heart is racing, you have slowed breathing, you lose consciousness or get dizzy.

Imodium Syrup SF side effects and cautions

All medications carry the risk of side effects and cautions, though not everybody gets them. It is important to familiarise yourself with these potentials risks by reading the patient information leaflet (PIL) enclosed with your medicine.


Let your doctor know if you know you are allergic to:

  • Loperamide hydrochloride
  • Glycerol
  • Sodium saccharin
  • Methyl parahydroxybenzoate
  • Propyl parahydroxybenzoate
  • Cochineal red A
  • Ethanol

Stop taking Imodium syrup SF and contact your doctor immediately if you experience any of the following allergy side effects:

  • Signs of an allergic reaction such as swelling in the face, tongue or throat or hives (lumpy, itchy rash) on the skin.
  • Blistering anywhere on the skin, in the mouth or in or around the eyes.
  • Swelling of the stomach or severe stomach pain
  • Extreme constipation
  • Feeling extremely faint, dizzy or if you have trouble concentrating

Imodium Syrup side effects

Contact your physician if you experience common side effects after taking Imodium Syrup SF such as:

  • Headaches
  • Dizziness
  • Nausea - feeling sick
  • Constipation
  • Flatulence

Some uncommon/rare side effects with taking Imodium Syrup SF include:

  • Dry mouth
  • Vomiting or indigestion
  • Rash
  • Dilated pupils (pupils get small)
  • Skin that becomes itchy
  • Trouble urinating
  • Fatigue (feeling tired)
  • Difficulty balancing
  • Stiff muscles

This is not an exhaustive list of side effects. Further safety information about Imodium Syrup SF can be found in the patient information leaflet enclosed with your medicine. You can also view the patient information for Imodium online here.

If you experience any side effects, whether listed above or in the patient information leaflet, inform your doctor or pharmacist for advice. You can find your nearest pharmacy by using the NHS' Find A Pharmacy service.

Taking Imodium Syrup during pregnancy and breastfeeding

Tell your medical provider if you are pregnant or if you suspect you might be pregnant.

Do not take Imodium Syrup SF if you are breastfeeding.

This medication contains sodium saccharin and may not be suitable if you are on a sodium-controlled diet.

Imodium Syrup SF also contains a small amount of alcohol (less than 100 mg per dose)

Do not take Imodium Syrup SF if you:

  • have severe diarrhoea that starts after taking antibiotics.
  • are in the middle of an ulcerative colitis flare-up.
  • are constipated or if you have a swollen abdomen.

Speak to your doctor before taking Imodium if you have:

  • blood in your stool and fever
  • have liver problems
  • have HIV/AIDS. If you do have AIDS and are taking Imodium Syrup SF and your stomach becomes swollen, stop taking it.

There have been incidents of serious heart problems after taking too much loperamide, which is the active ingredient in Imodium Syrup SF.

Always store medicine out of the sight and reach of children and pets.

Never share your medicine with anyone else, even if they are experiencing the same symptoms as you.

Frequently Asked Questions about Imodium Syrup SF

Can I drink alcohol while taking Imodium Syrup SF?

You should avoid or limit your consumption of alcohol while taking Imodium Syrup as it may increase your risk of side effects, such as nausea, tiredness or dizziness.

While trating diarrhoea, alcohol should be avoided due to its diuretic effect which can cause dehydration.

Will Imodium Syrup SF impact my ability to drive or operate machinery?

Some people report feeling dizzy after taking this medication. It also contains a small amount of alcohol, which could make staying focused difficult. Do not drive or operate machinery until you know how Imodium Syrup SF will affect you.

Can I take Imodium Syrup SF with Dioralyte?

Yes, it is safe to take Dioralyte with Imodium Syrup.

Dioralyte is a medicine known as a rehydrating salt. It helps to rehydrate the body following episodes of diarrhoea.

You can buy Dioralyte from our online pharmacy at Prescription Doctor.

Can I take Imodium Syrup while pregnant or breastfeeding?

No, you should not take Imodium Syrup while pregnant or breastfeeding because there is no data to determine the safety of the medicine for women in these groups.

If you are pregnant or breastfeeding, and suffering a bout of diarrhoea, speak to your doctor or pharmacist.

Table of contents

Buy Imodium Syrup SF Online

How does Imodium Syrup SF work?

How do I use Imodium Syrup SF?

Imodium Syrup SF side effects and cautions

Frequently asked questions about Imodium Syrup SF

Additional resources

How long does it take for Imodium to work?

Treatment information

  • Product Name: Imodium Syrup SF
  • Manufacturer: Janssen
  • Active Ingredient(s): Loperamide hydrochloride
  • Administration: Oral
  • Presentation: Red, fruit-flavoured, sugar free oral suspension
  • Available Strength: 0.2 mg per 1 ml of the solution.
  • Exemption: Prescription-only
  • Application: Men and women over 18+
  • Dosage: Four 5 ml doses initially, followed by two 5 ml doses after each loose stool.
  • Description: Imodium Syrup SF is an antidiarrhoeal treatment for adults with acute diarrhoea.
  • Drug Class: Antidiarrhoeal
  • Alcohol Consumption: Avoid or limit alcohol consumption while taking Imodium Syrup SF
  • When Pregnant: Do not take Imodium Syrup SF if you are pregnant. Speak to your doctor or pharmacist for more information.
  • When Breastfeeding: Do not take Imodium Syrup SF if you are breastfeeding. Speak to your doctor or pharmacist for more information.
Click here to view the Imodium Syrup SF - Patient Information Leaflet

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