Dioralyte

  • Replaces lost body fluids
  • Contains essential electrolytes
  • Prevents dehydration
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From As low as £4.59

Disclaimer: The prices displayed should only be used as a reference of our prices for this medicine. If you are approved for treatment, our prescribers will decide on a suitable treatment for you to jointly consider.

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prescription included

Fast next day delivery

order before 2pm

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What is Dioralyte?

Dioralyte sachets contain essential replacement electrolytes, which help to replace fluids in the body during dehydration caused by vomiting and diarrhoea.   

By keeping your body hydrated when suffering from vomiting or diarrhoea, you can also avoid other unpleasant symptoms caused by dehydration, such as tiredness, thirst and dizziness.

This medicine is mixed with water to make a drink that should be swallowed. Dioralyte can be used by people of all ages, although children under the age of 2 should only take it under a doctor’s recommendation.

What is Dioralyte used to treat?

Dioralyte is used for conditions that cause you to lose natural fluids in your body, such as acute diarrhoea or vomiting.

The powder is blackcurrant flavoured, which becomes a sweet-tasting drink when dissolved in a glass of water. Containing electrolytes, which are added to the water, it helps the body to absorb more fluid.

When you have conditions like acute diarrhoea, much of the fluid in your body is lost through excessive and watery bowel movements. Dioralyte, therefore, helps to prevent dehydration, which is particularly risky for the young and the elderly.

How does Dioralyte work?

When you have uncontrollable problems like diarrhoea or vomiting, your body loses a lot of fluid, either through being sick or through watery bowel movements. This can lead to dehydration in some cases.

Dioralyte works to prevent dehydration by helping the body to absorb more fluids. It helps to replace the water and salts that are lost through vomiting and diarrhoea.

Dioralyte sachets contain salts and glucose, which work to help the body absorb electrolytes and water effectively. This helps to restore the healthy balance of electrolytes that the body needs to function properly.

How to take Dioralyte

Take one sachet of Dioralyte after every loose bowel movement.

Empty one sachet into a glass of 200ml of fresh drinking water. Stir until the powder has dissolved and drink immediately.

Never dissolve this medicine in anything other than fresh drinking water.

One sachet in 200ml of water will be enough for children. Some adults may require two sachets dissolved in 400ml of water.

Always read the information that comes with your medicine before you start taking it. Ask your doctor or pharmacist if you are not sure.

Who can use Dioralyte?

Dioralyte is an effective way to rehydrate your body while suffering from diarrhoea, but it may not be suitable for everyone to use.

Please do not take Dioralyte sachets without speaking to your doctor first if any of these conditions apply to you:

  • You are allergic to any of the ingredients contained in this medication (please see the Ingredients page for full details)
  • You have an intestinal obstruction, where your bowel is either partially or fully blocked
  • You are exhibiting signs of a serious allergic reaction
  • The child who is taking this medicine is under 2 years old
  • You have diarrhoea that has lasted for longer than 24-48 hours
  • You have diabetes
  • You have chronic or persistent diarrhoea
  • You have either liver or kidney disease
  • You are on a low potassium or a low sodium diet
  • You have been told by your doctor that you are intolerant to certain types of sugars

Refer to the patient information leaflet for a comprehensive list of reasons why Dioralyte may not be suitable for you to take.

If you have any questions or concerns at all, do not hesitate to discuss them with your doctor.

Can you buy Dioralyte over the counter?

Yes, Dioralyte can be bought from your local pharmacy or supermarket without needing a prescription. However, if you have a child under the age of 2 years old, they should only take this medicine under a doctor’s advice.

Can you buy Dioralyte online in the UK?

You can buy Dioralyte online from Medicine Direct without needing a prescription. Just complete a simple and confidential online questionnaire to make sure that it is suitable for you to take.

If you order before 2pm, we can offer you next day delivery on your medication.

Never buy any kind of medication online unless it is from a registered pharmacy, like Medicine Direct. Always look for the pharmacy registration number on the homepage.

Dioralyte alternatives

There are several alternatives for diarrhoea available to buy online from Medicine Direct.

One of the most popular medicines for treating diarrhoea in adults and children over 9 years of age is Norimode. A prescription-only medicine (POM), Norimode should be taken for up to five days and works by slowing down food as it passes through the gut. This allows your body to draw in more water from the intestines, firming the stools and reducing how often you need to go to the toilet.

Loperamide Hydrochloride is one of the most effective medicines for treating diarrhoea. It is also the active ingredient contained in several branded medicines, including Norimode and Imodium. The generic version of this medicine is also available from Medicine Direct.

Dioralyte Dosage

Our pharmacists and prescribers follow NICE guidelines when prescribing Dioralyte.

Always take Dioralyte exactly as instructed by your doctor or pharmacist. Always read the patient information leaflet thoroughly before you start to take it. Please, ask your doctor or pharmacist if you are not sure of how to take this medicine.

Prepare this medicine just before it is due to be taken, not in advance.

If you are giving Dioralyte to a baby over the course of one day, you can keep it refrigerated for up to 24 hours.

Do not dissolve the powder in any liquid other than water. Please note that the water should be fresh.

Adults should use one or two Dioralyte sachets after each loose stool.

Children should use one Dioralyte sachet after each loose stool.

If your baby is under 2 years old and needs Dioralyte, this should only be given on the advice of a doctor.

How to prepare Dioralyte

Please, follow these instructions when using Dioralyte sachets:

  • Empty the contents of one sachet into a glass
  • Add 200ml (7 fl oz) of fresh water
  • With a teaspoon, stir the powder until it has completely dissolved in the water (the drink will be colourless)

Please note that you should never mix Dioralyte into more or less than 200ml of water; this is the correct volume of liquid you need to effectively take Dioralyte sachets. Other measurements will stop the medicine from working as well.

How many Dioralyte sachets should I take?

If you are being sick, you should take small sips to ingest the medicine properly.

If you are suffering from diarrhoea, it is best not to eat while taking this medication during the early stages of your condition.

If you still have diarrhoea after between 24 and 48 hours, please seek a doctor's advice.

What if I forget to take it?

If you accidentally miss a dose, do not double dose in an attempt to make up for it.

What if I take too much?

Taking too much Dioralyte is unlikely to cause you any harm, but if you overdose a large amount of the medicine, seek medical attention as soon as possible. If your child or baby has liver or kidney problems, it is very important you seek medical help. Take the medicine packet with you to hospital.

Dioralyte FAQ's

What is Dioralyte?


Dioralyte is a powder medicine which helps to replace the essential fluids which are lost in your body when you suffer from conditions like diarrhoea or vomiting. It contains electrolytes, which help the body to absorb more fluid. You mix the powder in a glass of water and drink it; it is blackcurrant flavoured, meaning it does not taste bad.

How should it be taken?


You should dissolve Dioralyte in a glass of 200ml of water and drink it.

Why should I take it?


If you are suffering from a condition such as diarrhoea or vomiting Dioralyte will help you to restore the fluids in your body, to prevent dehydration. If your diarrhoea lasts for longer than 24 hours, speak to your doctor.

Can Dioralyte help with diarrhoea fluid loss?


Yes, this medicine contains electrolytes, which help your body to absorb fluid more easily when you are suffering from diarrhoea, vomiting or other conditions that cause you to lose a lot of fluid all at once.

Dioralyte Side effects

Always read the patient information leaflet for a comprehensive list of side effects associated with this medication.

In rare circumstances, you may suffer from a severe allergic reaction to Dioralyte and require immediate treatment in hospital.

You should either call 999 or go to A&E straight away if you have any of the following symptoms:

  • You have tightness in the chest or throat
  • You have a skin rash that is red, itchy, swollen, blistered or peeling skin
  • You are finding it difficult to speak or breathe
  • You have swelling in your throat, lips, face, tongue or mouth
  • You are wheezing

Please read the patient information leaflet, which will come with your medication, for full details on side effects. If you have any concerns about side effects, please speak to your doctor or pharmacist before you start using this medication.

Warnings and drug interactions

Like all medicines, Dioralyte may interact with other medicines.

You should always inform your doctor of any other medications you are currently taking, before you start to take a new one. This includes prescription and non-prescription medication, herbal remedies, vitamins and supplements.

If you have any concerns at all, you should discuss these with your doctor before you start to use Dioralyte.

Never order medicine online unless it is from a pharmacy that is registered with the General Pharmaceutical Council, like Medicine Direct.

All of our doctors are registered with the General Medical Council, meaning they are fully certified to offer you impartial, professional advice on which medications are the most suitable for your conditions.

Pregnancy and breastfeeding

Please note, you should inform your doctor if you are currently pregnant, trying to get pregnant, or think you might be pregnant, before you use this medicine.

Similarly, you should tell your doctor if you are currently breastfeeding.

Dioralyte Ingredients

The active ingredients contained in Dioralyte sachets are glucose, sodium chloride, potassium chloride and disodium hydrogen citrate.

Inactive ingredients also contained in the medication are: saccharin sodium, silicone dioxide. This sachet contains blackcurrant flavouring, also.

Delivery Company Delivery Service Price Details
Royal Mail UK Delivery Standard UK Tracked £2.99 3 - 4 Working Day Delivery
DPD UK Next Day Delivery Next Day Delivery - Tracked £5.95 Order by 2pm (subject to Dr approval) Next Working Day Delivery
DPD UK Next Day Delivery Next Day Tracked Morning Delivery by 12:00pm £12.95 Next Working Day Morning Delivery by 12:00pm
DPD UK Next Day Delivery Tracked Saturday Delivery £9.95

Delivery specified for Saturday

Order Friday by 2pm (subject to Dr approval)

Please note that next day delivery to Northern Ireland, Scottish Highlands & Islands and British Isles cannot be guaranteed. Please contact our team for more information.

This page has recently been medically reviewed by Hussain Abdeh MPharm: 2211840

Updated on: 14/07/2021

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

Hussain Abdeh Superintendent Pharmacist at Medicine Direct

Hussain Abdeh
MPharm: 2211840

Pharmacist Independent Prescriber

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