Recurrence of Lamotrigine-Associated Rash With Rechallenge
J Clin Psychiatry 1998;59(2):87-87 [letter]
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Sir: Lamotrigine is a relatively new antiepileptic drug with possible efficacy in treatment-resistant bipolar disorder. Skin rashes of various kinds occurred in 10% of patients in controlled trials of lamotrigine and led to discontinuation of treatment in 2% of patients taking lamotrigine. Rash is more likely with higher starting doses, faster dose titrations, and concurrent treatment with valproic acid (possibly because valproic acid doubles lamotrigine blood levels).