Allopurinol (Zyloprim)

Rheumatology (Xanthine Oxidase Inhibitor)

Dosing & Administration

Adult Dose

100-300 mg PO daily (max 800 mg/day).

Pediatric Dose

Tumor lysis: 10 mg/kg/day divided.

Renal Adjustment

CrCl 10-20: Max 200 mg/day. CrCl < 10: Max 100 mg/day.

Hepatic Adjustment

No adjustment necessary.

Safety & Special Populations

Pregnancy Category

C

Lactation Safety

Compatible.

Contraindications & Adverse Effects

Contraindications

  • Hypersensitivity

Common Adverse Effects

  • Severe rash (SJS/TEN)
  • Hepatotoxicity
  • Acute gout flare (when initiated)