<p>Ranolazine is contraindicated in patients:</p>

<ul>
	<li>With pre-existing QT prolongation</li>
	<li>With hepatic impairment</li>
	<li>Taking QT prolonging drugs</li>
	<li>Taking potent and moderately potent CYP3A inhibitors such as ketoconazole, itraconazole, clarithromycin, nefazodone, nelfinavir, ritonavir, indinavir, and saquinavir, including diltiazem.</li>
</ul>