ORS for Babies: Dosage, Benefits And How To Make It At Home

ORS for Babies Dosage, Benefits And How To Make It At Home

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Oral rehydration salts or ORS is a WHO-recommended oral rehydration formula made of dry salts. You can purchase ORS as a powder or as a pre-mixed liquid oral rehydration solution, also called ORS, from a drugstore or pharmacy. You may also prepare an ORS mix at home by mixing salt and sugar in a predetermined quantity of clean drinking water.

The oral administration of ORS replenishes the lost water and electrolyte in the body. ORS is commonly used in oral rehydration therapy (ORT). This post will share when babies need ORS, its benefits, the right quantities to administer, and tips to make ORS at home.

When Do Babies Need Oral Rehydration Therapy (ORT)?

Babies need ORT when they lose excess water and electrolytes from their bodies. Several conditions and factors could cause loss of electrolytes and fluids. Babies are vulnerable to infections and gastrointestinal issues that can cause persistent diarrhea and vomiting, leading to acute dehydration.

Dehydration can lead to several adverse health effects, making ORS use under the pediatrician’s guidance imperative for rehydration. Below are some signs of dehydration in infants (1).

If your baby is exhibiting any of these symptoms, consult a pediatrician and discuss ORT. In severe dehydration, the baby may become dizzy and lose consciousness.

What Are The Benefits Of Oral Rehydration Solution?

Oral rehydration salts or solutions contain sodium chloride, anhydrous glucose, potassium chloride, and trisodium citrate (dihydrate) (2). The salts help maintain electrolyte balance in the body, while glucose provides the energy to recover, recuperate, and heal.

Below are some other benefits of ORS (3).

  • It is cost-effective and readily available.
  • It is easy-to-prepare and easy-to-administer at home.
  • It contains the right ratio of salts necessary to maintain the body’s osmolarity, which is essential to keep the body’s physiological harmony.
  • It acts fast as the solution contains simple salts that readily enter the bloodstream.
  • It can be administered orally, so even individuals without a medical background can administer it easily.

How To Give ORS To Infants?

Below are the steps to make an ORS and administer it to babies.

  1. Boil 200ml of clean drinking water in a clean and sterilized utensil and then cool it.
  1. Pour this water into a glass and mix it with a teaspoon of ORS powder. Stir well until the powder completely dissolves and the solution appears cloudy. Don’t mix ORS in milk, fruit juice, or any other fluid.
  1. Wash your hands before feeding ORS to the baby.
  1. Children under two should be given a teaspoon of this solution every one to two minutes using a spoon, dropper, or feeder throughout the day (4). Don’t use bottles to feed ORS.
  1. Infants and children are advised one to two liters of ORS over 24 hours, although the quantity could vary depending on the baby’s health. Consult a pediatrician to determine the quantity of ORS your baby needs.
  1. Feed as much ORS as advised for the baby in 24 hours and discard the remaining unused solution. Make a fresh solution every 24 hours.

You can also use packaged, pre-mixed liquid ORS and begin from step three mentioned above. Your baby may also receive other medications to control diarrhea and vomiting that cause dehydration. If ORS does not improve the baby’s health, speak to the doctor.

What Quantity Of ORS Solution Does A Baby Need?

The quantity of ORS needed by a baby depends on the severity of dehydration. It could also depend on the frequency of vomiting or diarrhea. For instance, according to UNICEF, children under two years need one-fourth to one-half of a large cup (250ml) of ORS solution after each watery or loose stool. Children older than two years need half to one liter after each watery stool (5).

The precise quantity of ORS needed could vary due to several factors, including if the baby is receiving other medications. Therefore, speak to a pediatrician to determine the quantity of ORS solution appropriate for your baby.

What To Do If ORS Is Not Available?

If oral rehydration salts or solutions are unavailable, you may prepare one at home. Below are the steps to make ORS at home (6).

  1. Wash your hands using soap and water. Ensure the utensils you are using to make the solution are clean and sterilized.
  1. Mix six level teaspoons of sugar and one-half level teaspoon of salt in one liter of clean boiled and cooled water. You may use molasses (a form of raw sugar) instead of white sugar since molasses contain more potassium.
  1. Stir the mixture well until the sugar and salt dissolve entirely, resulting in a faint opaque solution.
  1. Feed as much solution as the baby needs or as advised by the doctor. Alternatively, feed other fluids, such as breast milk.
  1. If a baby vomits, stop for ten minutes and re-feed ORS. Feed small quantities as the baby will be able to tolerate it better.
  1. You can store fresh ORS in a cool place. Chilling the ORS in a refrigerator is good, but it should not be used for more than 24 hours after preparation.

Babies older than six months can be given different foods, such as gruels, rice water (congee), carrot soup, and tender coconut water, for rehydration. Once the baby is rehydrated and their digestive system seems at ease, you may begin feeding them a regular diet after consulting your doctor.

Are There Any Side Effects Of ORS?

ORS solution, when administered in recommended quantities, does not lead to side effects. Overfeeding ORS may cause complications, such as electrolyte imbalance and water retention. In rare cases, ORS may not be suitable for babies with some health conditions or those on some medications.

Incorrectly prepared homemade ORS may have counter effects. For instance, too much sugar or salt in the ORS could worsen diarrhea. If you suspect your baby is displaying side effects to ORS, consult a healthcare provider.

Precautions To Take While Feeding ORS To Babies

Below are some precautions to observe while feeding ORS to a baby (7).

  • Avoid feeding ORS to babies with impaired renal function, gastrointestinal obstruction, or chronic health problems without consulting a doctor first.
  • Discuss with your doctor about the time for administering other medicines if the baby is on ORS.
  • Don’t use ORS solution for more than three to four days unless directed otherwise by your doctor.
  • Avoid feeding ORS in one gulp since it may exacerbate vomiting in some babies. Instead, use a spoon or a sippy cup to feed small quantities over a short period.

Oral rehydration salts or solutions help rehydrate babies. You can choose from salt or pre-mixed solution form or even make it at home during emergencies. Remember, ORS helps prevent dehydration due to vomiting and diarrhea, but your baby will also need other medications or interventions to cure the underlying cause of these problems.


MomJunction's articles are written after analyzing the research works of expert authors and institutions. Our references consist of resources established by authorities in their respective fields. You can learn more about the authenticity of the information we present in our editorial policy.
1. Infant Nutrition And Feeding; USDA
2. Oral Rehydration Salts: The Salts of Life; The Mother And Child Education Trust
3. Oral rehydration therapy; About Kids Health
4. Oral Rehydration Salts – Frequently Asked Questions; The Mother And Child Education Trust
5. Facts For Life – Diarrhoea; UNICEF
6. Oral Rehydration Solutions: Made at Home; The Mother And Child Education Trust
7. Oral rehydration salts; Medicines For Children


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Swati Patwal

Swati Patwal is a clinical nutritionist and toddler mom with over eight years of experience in diverse fields of nutrition. She started her career as a CSR project coordinator for a healthy eating and active lifestyle project catering to school children. Then she worked as a nutrition faculty and clinical nutrition coach in different organizations. Her interest in scientific writing... more