pimozide or sertindole (used to treat schizophrenia), triazolam or oral (taken by mouth) midazolam (used to treat anxiety or sleep disorders), ergot derivatives (used to treat headaches), astemizole or terfenadine (used to treat allergies or hay fever), the statins simvastatin or lovastatin (used to lower blood cholesterol) or amioradone, bepridil, flecainide, propafenone or quinidine (used to treat heart disorders), and metoprolol (used to treat heart failure).