Nydrazid

Nydrazid is a brand name of isoniazid, an antibacterial drug used as a first-line agent for the treatment of active tuberculosis (in combination with other antituberculosis drugs) and for the prophylaxis of latent tuberculosis. It works by inhibiting the synthesis of mycolic acids, which are essential components of the mycobacterial cell wall.

Dosage by Body Weight

Standard adult daily dose is 5 mg/kg (up to 300 mg) daily in a single dose. Standard pediatric daily dose is 10 to 15 mg/kg (up to 300 mg) daily in a single dose. Often co-prescribed with pyridoxine (Vitamin B6) to prevent peripheral neuropathy, especially in patients at risk of deficiency.

  1. Body Weight
    Below 5 kg
    Dose
    30 mg to 50 mg
    Frequency
    Once daily
    Tracking Notes
    Consult a pediatric specialist; pyridoxine (Vitamin B6) supplementation is highly recommended.
  2. Body Weight
    5-7 kg
    Dose
    50 mg to 100 mg
    Frequency
    Once daily
    Tracking Notes
    Based on pediatric guideline dose of 10-15 mg/kg/day. Monitor hepatic function.
  3. Body Weight
    8-10 kg
    Dose
    80 mg to 150 mg
    Frequency
    Once daily
    Tracking Notes
    Can be administered using oral liquid formulations or crushed tablets.
  4. Body Weight
    11-15 kg
    Dose
    110 mg to 225 mg
    Frequency
    Once daily
    Tracking Notes
    Ensure regular follow-up for liver enzyme monitoring.
  5. Body Weight
    16-20 kg
    Dose
    160 mg to 300 mg
    Frequency
    Once daily
    Tracking Notes
    Do not exceed the maximum standard pediatric dose of 300 mg per day.

Formulation

TabletSyrupInjection

Purpose

Treatment and prevention of active and latent tuberculosis (TB) caused by Mycobacterium tuberculosis.

Generic Name

Isoniazid

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.