Dioralyte Rehydration Powder

Buy Dioralyte Sachets for travellers' diarrhoea

Use Dioralyte when suffering with travellers' diarrhoea in order to replenish essential sugar and salts lost during loose bowel movements. Dioralyte is one of the medicines in the travellers' diarrhoea pack to treat diarrhoea, including loperamide, buccastem M and antibiotics (only for use with bacterial gut infections).

All our products are genuine UK medicines and are dispensed by our partner pharmacy based in the UK.

Read more
  • Oral rehydration sachets containing glucose, sodium chloride, potassium chloride and disodium hydrogen citrate
  • Mix the contents of one Dioralyte sachet with at least 200ml of bottled water
  • Used to aid rehydration after travellers' diarrhoea and replaces lost electrolytes
Start Consultation

Dioralyte rehydration sachets work by replacing the water and salts lost from your body when you have diarrhoea. Each sachet contains the active ingredients glucose and salts, namely sodium chloride, potassium chloride and disodium hydrogen citrate. It comes in sachets containing powder which you mix with 200ml water before drinking


Do not take Dioralyte if:

  • you are allergic (hypersensitive) to glucose, sodium chloride, potassium chloride and disodium hydrogen citrate or any of the other ingredients listed in the patient information leaflet.
  • your bowel is partially or fully blocked (intestinal obstruction)
Important Interactions

You must tell your doctor if you are taking, have recently taken or might take other medicines.

Side Effects

Dioralyte does not usually cause side effects.

Get urgent medical help if you have an allergic reaction. The signs may include a rash, swallowing or breathing problems, swelling of your lips, face, throat or tongue.

Please Note

All medication can cause side effects. We have only listed a few to be aware of. Details of all side effects, including rare side effects to be aware of, are listed in the patient information leaflet (PIL). When completing your medical questionnaire, it is very important that you answer the questions truthfully. This is to ensure your doctor has a full picture of your medical history before prescribing. List all medicines you are already taking, including non-prescription and herbal medicines.

Looking after your medicine

Do not take medicines after the expiry date stamped on the pack. Keep all medicines out of the reach and sight of children.

Medicines are only intended to be used by the person they are prescribed for. Do not give your prescribed medicine to anybody else, even if they have the same symptoms as you. Medicines can be harmful if used by anybody other than the person they have been prescribed for.

References Dioralyte Patient Information Leaflet
British National Formulary: disodium hydrogen citrate with glucose potassium chloride and sodium chloride

When prepared and taken correctly, rehydration salts should take 3-4 hours to improve dehydration. Although they can start to work faster. It is important to mix each sachet with the correct amount of water, as described in the patient information leaflet.

Adults should take 1 or 2 sachets dissolved in water following each episode of diarrhoea. Always read the patient information leaflet for correct dosing and how to mix the sachets properly.

Although you do not need a prescription to buy Dioralyte, it is included in the travellers' diarrhoea pack as it is a very useful medicine for treating the symptoms of travellers’ diarrhoea and vomiting.

With each episode of diarrhoea, we lose fluids and electrolytes which can lead to dehydration. It is therefore important to drink lots of fluids when suffering from travellers’ diarrhoea. Over the counter medicines such as loperamide (Imodium™) and Dioralyte rehydration sachets are also very good at treating the symptoms of diarrhoea. Both are included in our travellers' diarrhoea packs. Although the pack also includes the antibiotic azithromycin for travellers’ diarrhoea, you should only use antibiotics if essential and only for bacterial causes of diarrhoea.

Last reviewed & updated  29/05/2020   Authored  05/09/2010

How our service works

  1. 1

    Complete a free online consultation

  2. 2

    Choose your preferred treatment

  3. 3

    Prescription issued by a GMC registered doctor

  4. 4

    Medicine delivered the next day