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Methimazole

Inhibits the enzyme thyroid peroxidase, which prevents the thyroid gland from producing thyroid hormone.

Dosage by Body Weight

Pediatric initial dose: 0.4 mg/kg/day. Maintenance is 50% of the initial dose.

  1. Body Weight
    20-30 kg
    Dose
    10 mg
    Frequency
    Once daily
    Tracking Notes
    Monitor for sore throat or fever (signs of low white cell count).

Formulation

Tablet

Purpose

Treatment of hyperthyroidism (Graves' disease) in children.

Generic Name

Methimazole

Branded Drug Names

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

  • Tapazole

Scheduled Drug

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

Alternatives

Propylthiouracil

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.