Acyclovir

Antibiotics

Antibiotics · Nucleoside antiviral

Acyclovir

Dose

HSV encephalitis: 10 mg/kg IV q8h × 14–21 days (ideal body weight). Zoster: 800 mg PO 5×/day × 7 days.

Use

HSV encephalitis, disseminated/ophthalmic zoster, severe varicella.

Monitoring

Renal function and hydration (crystal nephropathy), neurotoxicity in CKD.

Side effects

  • Acute kidney injury
  • Confusion/hallucination
  • Phlebitis
  • Nausea

Related in WardRound

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

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