39 y.o. female with 2-day Hx of intermittent
syncope
Rx with terfenadine 60 mg bid and cefaclor
250 mg tid 10 d
Self-medicated with ketoconazole 200 mg
bid for vaginal candidiasis
Palpitations, syncope, torsades de pointes
(QTc 655 msec)