Hydroxychloroquine

Hydroxychloroquine is an aminoquinoline medicine classified as a disease-modifying antirheumatic drug (DMARD) and an antimalarial. It works by reducing inflammation and altering immune system activity in autoimmune conditions, and by interfering with the growth of parasites in the red blood cells of individuals with malaria.

Dosage by Body Weight

Take exactly as prescribed by your doctor, usually with food or a glass of milk to prevent stomach upset. For malaria prevention, it is typically taken once weekly on the same day each week, starting 1 to 2 weeks before traveling to an endemic area. For lupus or rheumatoid arthritis, it is typically taken daily.

  1. Body Weight
    Below 5 kg
    Dose
    Not routine
    Frequency
    Use only if prescribed
    Tracking Notes
    Safety and efficacy are not established for infants and very low body weight children; avoid unless highly necessary and closely monitored.
  2. Body Weight
    5-7 kg
    Dose
    32.5 mg to 45.5 mg
    Frequency
    Once weekly (Malaria Prophylaxis)
    Tracking Notes
    Dose calculated based on 6.5 mg/kg weekly. Tablets are bitter; may be crushed and suspended in a sweet vehicle like cherry syrup.
  3. Body Weight
    8-10 kg
    Dose
    52 mg to 65 mg
    Frequency
    Once weekly (Malaria Prophylaxis)
    Tracking Notes
    Administer with food or milk to minimize gastrointestinal discomfort. Do not exceed calculated weight-based limits.
  4. Body Weight
    11-15 kg
    Dose
    71.5 mg to 97.5 mg
    Frequency
    Once weekly (Malaria Prophylaxis)
    Tracking Notes
    Dosing must be adjusted precisely to body weight to prevent toxicity. Regular clinical monitoring is required.
  5. Body Weight
    16-20 kg
    Dose
    104 mg to 130 mg
    Frequency
    Once weekly (Malaria Prophylaxis)
    Tracking Notes
    Do not exceed the maximum adult weekly dose of 400 mg. Long-term use in pediatric patients is generally not recommended.

Formulation

Tablet

Purpose

Used for the prevention and treatment of certain strains of malaria, as well as for the treatment of autoimmune diseases such as rheumatoid arthritis and systemic lupus erythematosus.

Generic Name

Hydroxychloroquine Sulfate

Branded Drug Names

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

Scheduled Drug

Yes. This medicine should be supplied or used only according to applicable prescription and regulatory requirements.

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.