Diarrhoea is the term used to describe loose or watery stools which are passed more frequently than normal. It is common for both adults and children to experience bouts of diarrhoea, and it will normally leave your system within a few days. Our online pharmacy has a range of diarrhoea relief medicines and capsules available. Simply fill in a medical assessment form and one of our qualified doctors will recommend the best anti-diarrhoea medicine for you. Browse our range of medicines below.


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  1. Norimode
    From As low as £16.99
    • Treats Diarrhoea
    • Eases symptoms
    • Fast acting

    Please note brand received may vary

  2. Dioralyte
    From As low as £4.59
    • Replaces lost body fluids
    • Contains essential electrolytes
    • Prevents dehydration
  3. Imodium Syrup SF
    Imodium Syrup SF
    From As low as £14.99
    • Diarrhoea relief
    • Treats Irritable Bowel Syndrome (IBS)
    • Very fast acting
  4. Loperamide Hydrochloride 2mg
    Loperamide Hydrochloride 2mg
    From As low as £16.99
    • Treats chronic diarrhoea
    • Eases symptoms
    • Reduces contractions from the intestines

    Please note brand received may vary

What is Diarrhoea?

Diarrhoea is when you have loose or watery stools that occur more rapidly and frequently than usual. It is a common condition that affects both adults and children. In most cases it will be over after a few days, but there are various products available which you can buy from a pharmacy to aid in the treatment of diarrhoea. Diarrhoea can cause you to lose a lot of fluid, so it is important to stay hydrated by drinking plenty of water, to help your body to cope with the fluid loss.

Diarrhoea Symptoms

The most common symptoms associated with diarrhoea are:

  • Loose, watery stools
  • Nausea
  • Bloating
  • Abdominal pain
  • Abdominal cramps
  • Blood in your stools
  • Mucus in your stools
  • Needing to have a bowel movement more frequently and urgently than usual
  • Fever

What causes diarrhoea?

The most common cause of diarrhoea is a bowel infection, known as gastroenteritis. There are numerous ways the infection can be caused such as catching norovirus, or consuming food or water that is infected with E. coli or parasites. In fact, it is very common for people travelling abroad to areas with poor hygiene to become ill with diarrhoea, as food may be washed in infected water. You can also buy medication specifically to treat travellers diarrhoea from Medicine Direct.

If your diarrhoea lasts any longer than a few days, you could be suffering with chronic diarrhoea. Chronic cases are usually a sign of underlying symptoms such as food intolerance, irritable bowel syndromes or a stress-related illness.

Diarrhoea Diagnosis

If you are an adult and suffering from diarrhoea, you should see a doctor if:

  • It has lasted for longer than a few days
  • You become dehydrated
  • You have black or bloody stools
  • You have severe pain in your rectum or abdomen
  • You have a fever above 39C

If your child has diarrhoea, call a doctor if it does not improve within 24 hours or if your baby:

  • Has bloody or black stools
  • Becomes dehydrated
  • Has a fever above 39C

Your doctor may recommend a stool test, to see if there are any parasites or bacteria in your stools that are causing the problem. A flexible sigmoidoscopy or colonoscopy may also help to identify the problem; this is where a thin tube with a camera is inserted into your anus for your doctor to see inside your colon.

Diarrhoea Treatment

How should I treat diarrhoea?

Sometimes you can treat diarrhoea at home. The key to a speedy recovery is to make sure you are drinking lots of water and fluids to avoid dehydration. As diarrhoea can sometimes make you feel nauseous, you should take small, frequent sips until it passes. One way to check you are hydrated is by keeping an eye on the colour of your urine. It should be light yellow or almost clear if you are hydrated.

It is also recommended that you should eat small, light meals as soon as you feel able to. Avoid anything spicy or highly fatty as this can irritate the bowels further. Adding foods to your diet that are easy to digest are recommended when experiencing diarrhoea. Pharmacists and GPs also recommend using oral rehydration solutions such as dioralyte or prescribed medicines which contain loperamide such as Imodium or Norimode.

You can order anti-diarrhoea tablets online from our UK pharmacy.

Diarrhoea capsules at Medicine Direct

At our pharmacy, we stock a wide range of diarrhoea relief products. Simply fill in a medical assessment form, and one of our qualified doctors will recommend the best anti-diarrhoea medicine for you. If you order by 2pm, we can offer you free next day delivery.

We stock the following medicines:

  • Loperamide
  • Imodium over the counter syrup
  • Dioralyte
  • Norimode

What food should I eat if I have diarrhoea?

If you are suffering from a bout of diarrhoea, try to eat the following foods: Foods that are high-energy, such as fats, cereal and yoghurt. Eat these regularly in small portions as this will help to keep up your energy levels, Food items that are high in potassium, such as bananas, pineapples and lentils; these will help to prevent stomach cramps. Try to avoid spicy foods or food items that are high in fibre; these can work to make your diarrhoea worse.

How will I know if I am dehydrated?

Signs that you may be dehydrated include: Feeling extremely thirsty or being unable to drink, Dry mouth and tongue, Thick saliva, Dry and warm skin, Feeling weak and/or dizzy, Headaches, Feeling generally unwell, Feeling irritable or drowsy, Cramps in your arms and legs, Passing dark yellow urine in small amounts, Generally feeling unwell. You must drink plenty of water if you feel dehydrated; you should also begin to rehydrate yourself by using rehydration sachets.

If I stop drinking water, will that stop my diarrhoea?

You should not stop drinking water if you have diarrhoea. Doing so will not fix your problem; in fact, it will only add to it by increasing the risk of dehydration, which can cause potentially dangerous complications. You lose a lot of fluid when suffering from diarrhoea, so it is important to keep up your fluid intake.

Will diarrhoea treatment make me constipated?

If taken as instructed by your doctor or pharmacy, the product you use to ease your condition should not make you constipated. Speak to the pharmacy or your doctor if you are concerned about the side effects of your products

Is it normal to experience vomiting and diarrhoea together?

These two conditions can sometimes occur together, and it is usually caused by an infection like the norovirus. If these symptoms last for more than a few days, you should speak to a doctor. Be sure to wash your hands with soap frequently and, if possible, do not prepare food for other people if you have these symptoms. This will help to prevent the spread of your infection to others. In most cases, these problems will clear on their own, so try to stay at home and get plenty of rest if you experience them. Drink plenty of water to keep up your fluid intake, as your body can lose a lot of fluid when you suffer from vomiting and diarrhoea at the same time.

Doctor Notes

Medicine Direct have an experienced clinical team of doctors, pharmacists and dispensers, all of whom are based in the UK. All are fully trained and qualified to provide appropriate and considered care across all areas of treatment we have available at our online pharmacy.

This means that no matter which member of our team is assigned to your case, you can rest assured that you are in the hands of a highly skilled medical professional, who possesses the compassion and clinical expertise to properly advise you on the best course of treatment.

We are fully regulated

All of our doctors and pharmacists are fully registered with both the General Medical Council (GMC), MHRA and the General Pharmaceutical Council (GPhC). Each member of our team has also worked in various clinic settings in the past, such as community pharmacies and NHS hospitals.

Sonia Khan Medicine Direct Pharmacist

Sonia Khan
MPharm: 2076091


This content has been written by our Pharmacist Sonia Khan and has been medically reviewed by our Superintendent Pharmacist Hussain Abdeh

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