<ul>
	<li>Severe left ventricular dysfunction</li>
	<li>Hypotension or cardiogenic shock</li>
	<li>Sick sinus syndrome (except in patients with a functioning artificial ventricular pacemaker)</li>
	<li>Second or third-degree atrioventricular (AV) block (except in patients with a functioning artificial pacemaker)</li>
	<li>Patients with atrial flutter or atrial fibrillation and an accessory by pass tract (eg. Wolff-Parkinson-White, Lown-Ganong-Levine syndrome)</li>
	<li>Patients with known hypersensitivity to verapamil hydrochloride</li>
</ul>