CPIC publishes guidelines on interpreting genetic test results for HLA-B*5801 when prescribing allopurinol therapy.
Allopurinol is an analog of the purine base hypoxanthine. It inhibits the conversion of hypoxanthine and xanthine to uric acid by XDH and is used in the treatment of gout.
Severe cutaneous adverse reaction, SCAR, also known as allopurinol hypersensitivity syndrome, is a rare serious and sometimes fatal side effect