Brethine

Brethine is a beta-adrenergic receptor agonist that acts as a bronchodilator. It works by relaxing the smooth muscles of the bronchial airways to improve airflow and make breathing easier.

Dosage by Body Weight

For adults and adolescents over 15 years, the typical oral dose is 2.5 mg to 5 mg taken three times daily. For adolescents 12 to 15 years, the typical dose is 2.5 mg taken three times daily. Use in children under 12 years should be strictly determined and supervised by a physician.

  1. Body Weight
    Below 5 kg
    Dose
    Not recommended
    Frequency
    Use only if prescribed
    Tracking Notes
    Safety and efficacy in infants under this weight have not been established.
  2. Body Weight
    5-7 kg
    Dose
    0.25 mg to 0.35 mg
    Frequency
    Three times daily
    Tracking Notes
    Based on a calculated pediatric guideline of 0.05 mg/kg/dose. Strict clinical supervision required.
  3. Body Weight
    8-10 kg
    Dose
    0.4 mg to 0.5 mg
    Frequency
    Three times daily
    Tracking Notes
    Monitor closely for potential side effects such as rapid heart rate or tremors.
  4. Body Weight
    11-15 kg
    Dose
    0.55 mg to 0.75 mg
    Frequency
    Three times daily
    Tracking Notes
    Use of liquid/syrup formulations is preferred for accurate dosing in this range.
  5. Body Weight
    16-20 kg
    Dose
    0.8 mg to 1.0 mg
    Frequency
    Three times daily
    Tracking Notes
    Do not exceed the recommended total daily limit advised by the pediatrician.

Formulation

TabletInjection

Purpose

Used to treat and prevent bronchospasm in patients with asthma, chronic bronchitis, emphysema, and other reversible obstructive airway diseases.

Generic Name

Terbutaline sulfate

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.