Isoniazid

Antibiotics

Antibiotics · Antitubercular

Isoniazid

Dose

5 mg/kg PO OD (max 300 mg) with pyridoxine 10–25 mg daily.

Use

Component of standard TB therapy and latent TB treatment.

Monitoring

LFTs (baseline and if symptomatic), peripheral neuropathy, adherence.

Side effects

  • Hepatitis
  • Peripheral neuropathy
  • Drug-induced lupus
  • Rash

Related in WardRound

Always confirm dose against your local formulary / BNF before prescribing.

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