K ketoconazole kee-toe-kon-a-zol (Apo-Ketoconazole , Extina, Nizoral, Nizoral AD, Novo-Ketoconazole , Xolegel) BLACK BOX ALERT Potentially fatal hepatotoxicity has occurred. Concurrent cisapride, terfenadine, astemizole contraindicated; serious cardiovascular events (QT prolongation,…