The following statements about verapamil are true except_____________?
Correct answer: C. It is contraindicated in patients with supraventicular tachycardia
- A. It does not produce reflex tachycardia
- B. It is less potent as a coronary vasodilator
- C. It is contraindicated in patients with supraventicular tachycardia
- D. It can cause constipation
Explanation
Verapamil is used to terminate or prevent some supraventricular tachycardias, so it is not generally contraindicated in SVT; it is contraindicated in selected conduction disorders and conditions such as severe heart failure. Its other listed effects include minimal reflex tachycardia, weaker coronary vasodilation than dihydropyridines, and constipation.
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