Ranolazine is contraindicated in patients with: Hypersensitivity to the active substance or to any of the excipients.
Severe renal impairment (creatinine clearance <30 ml/min).
Moderate or severe hepatic impairment.
Concomitant administration of potent CYP3A4 inhibitors (e.g. itraconazole, ketoconazole, voriconazole, posaconazole, HIV protease inhibitors, clarithromycin, telithromycin, nefazodone).
Concomitant administration of Class Ia (e.g. quinidine) or Class III (e.g. dofetilide, sotalol) antiarrhythmics other than amiodarone.