Which of the following is a beta-1 selective antagonist?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Study for the KMK Live Session General Pharmacy Test. Enhance your understanding with flashcards and multiple choice questions. Each question includes hints and explanations. Prepare today!

Multiple Choice

Which of the following is a beta-1 selective antagonist?

Explanation:
Beta-1 selective antagonists block mainly the beta-1 receptors in the heart, giving the heart-sparing effect on beta-2–rich tissues like the lungs. Betaxolol fits this profile, being a cardioselective beta blocker that preferentially blocks beta-1 receptors with less impact on beta-2 receptors. This selectivity reduces the risk of bronchoconstriction compared with nonselective blockers. The other drugs in the set block multiple beta receptors or both alpha and beta receptors, so they are not beta-1 selective.

Beta-1 selective antagonists block mainly the beta-1 receptors in the heart, giving the heart-sparing effect on beta-2–rich tissues like the lungs. Betaxolol fits this profile, being a cardioselective beta blocker that preferentially blocks beta-1 receptors with less impact on beta-2 receptors. This selectivity reduces the risk of bronchoconstriction compared with nonselective blockers. The other drugs in the set block multiple beta receptors or both alpha and beta receptors, so they are not beta-1 selective.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy