Allopurinol

Category: pharmacological

Aliases: Zyloprim

Pharmacological Mechanism

Xanthine oxidase inhibitor — converts to active oxipurinol; both compete with hypoxanthine + xanthine for XO active site. Lowers serum uric acid in gout + tumor lysis syndrome. SCAR (severe cutaneous adverse reactions) risk in HLA-B*5801 carriers (Asian / African ancestry).

Half-Life (t½)

PO: 2h

Dosing Guidelines

Target Organ Systems