Oral Rehydration Therapy

Oral Rehydration Therapy (ORT) involves drinking a solution of clean water, sugar, and electrolytes (sodium, potassium, chloride, and citrate) to treat fluid loss. It is widely used to manage dehydration from diarrheal illnesses and is a critical, low-cost intervention for infant and child health.

Dosage by Body Weight

For mild-to-moderate dehydration, administer approximately 75 mL/kg of ORS solution over a 4-hour period. Offer small, frequent sips rather than large gulps. If vomiting occurs, pause for 10 minutes, then resume more slowly.

  1. Body Weight
    Below 5 kg
    Dose
    200 to 400 mL over 4 hours
    Frequency
    Frequent small sips (approx. 5 mL every 1-2 minutes)
    Tracking Notes
    Continue breastfeeding or feeding infant formula between ORS administrations.
  2. Body Weight
    5-7 kg
    Dose
    400 to 600 mL over 4 hours
    Frequency
    Frequent small sips
    Tracking Notes
    If the child vomits, wait 10 minutes and then resume administration more slowly.
  3. Body Weight
    8-10 kg
    Dose
    600 to 800 mL over 4 hours
    Frequency
    Frequent small sips
    Tracking Notes
    Monitor clinical signs of dehydration improvement (e.g., wet diapers, tears).
  4. Body Weight
    11-15 kg
    Dose
    800 to 1200 mL over 4 hours
    Frequency
    Frequent sips as tolerated
    Tracking Notes
    Offer normal age-appropriate diet once the rehydration phase is complete.
  5. Body Weight
    16-20 kg
    Dose
    1200 to 1600 mL over 4 hours
    Frequency
    Sips as tolerated
    Tracking Notes
    Ensure ORS packets are dissolved in the exact amount of clean water specified on the packaging.

Formulation

Powder for Oral SolutionOral LiquidTablet

Purpose

Used to prevent and treat dehydration caused by diarrhea, vomiting, or excessive sweating, by replenishing vital water and electrolytes.

Generic Name

Oral Rehydration Salts (ORS)

Branded Drug Names

Oral Rehydration Therapy is listed as a generic drug name. Common branded medicines that may contain the same active ingredient include:

Scheduled Drug

No. This medicine is generally not treated as a scheduled/prescription-only drug in common consumer references, but local rules may vary.

Alternatives

Disclaimer: This information is for educational purposes only. WHO references and weight bands are simplified for tracking and must not replace medical advice. Always consult with a healthcare professional before starting or changing any medication.