Which of the following statements about verapamil is incorrect?

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It does not trigger reflex tachycardiaIt has a lower efficacy as a coronary vasodilatorIt should not be used in patients with supraventricular tachycardiaIt may lead to constipationIt primarily acts as a beta-blocker

Explanation

Verapamil does not cause reflex tachycardia and is less effective as a coronary vasodilator. It can cause constipation. However, it is not contraindicated in patients with supraventricular tachycardia; in fact, it is often used to manage this condition. Therefore, the statement that it is contraindicated in supraventricular tachycardia is incorrect.