PT  - JOURNAL ARTICLE
AU  - Misra, U K
AU  - Kalita, J
AU  - Rathore, C
TI  - Phenytoin and carbamazepine cross reactivity: report of a case and review of literature
DP  - 2003 Dec 01
TA  - Postgraduate Medical Journal
PG  - 703--704
VI  - 79
IP  - 938
4099  - http://pmj.bmj.com/content/79/938/703.short
4100  - http://pmj.bmj.com/content/79/938/703.full
SO  - Postgrad Med J2003 Dec 01; 79
AB  - Cross reactivity between phenytoin, carbamazepine, and oxcarbazepine is reported. An 8 year old boy with partial seizures developed maculopapular rashes with itching on day 15 of carbamazepine therapy. After stopping carbamazepine, phenytoin 100 mg daily was prescribed two days later. On the 12th day of phenytoin therapy he developed cervical and axillary lymphadenopathy with fever. Lymph nodes revealed reactive hyperplasia. Oxcarbazepine 75 mg twice daily also resulted in oral and mucosa ulceration. The seizures were controlled without any side effects with sodium valproate 200 mg three times a day and gabapentin 300 mg twice a day. Due to the cross reactivity of aromatic anticonvulsants (phenytoin, carbamazepine, and oxcarbazepine), valproate or newer anticonvulsants should be used if a patient has sensitivity to these drugs.