HLA-B*15:02 has a 100% negative predictive value for carbamazepine-induced SJS/TEN, and its use is currently recommended to guide use of carbamazepine and oxcarbazepine only. Because there is a much weaker association and less than 100% negative predictive value of HLA-B*15:02 for SJS/TEN associated with other aromatic anticonvulsants, using these drugs instead of carbamazepine or oxcarbazepine in the setting of a negative HLA-B*15:02 test in Southeast Asians will not result in prevention of anticonvulsant-associated SJS/TEN (PMID 25355835).