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Hypotension (<90 mmHg systolic pressure) or cardiogenic shock.
Complicated acute myocardial infarction (bradycardia, marked hypotension, left ventricular failure). Severe conduction disorders (2nd- and 3rd-degree AV block, sinoatrial block). Sick sinus syndrome (bradycardia-tachycardia syndrome). Patients with atrial flutter or atrial fibrillation with an accessory bypass tract (eg, Wolf-Parkinson-White, Lown-Ganong-Levine syndromes). Patients with known hypersensitivity to verapamil HCl.
