Vaughan Williams Class 2 (drug name) is which?

Vaughan Williams Class 2 (drug name) is which?

• A. Vasodilator
• B. ACE inhibitor
• C. Beta Blocker
• D. Diuretic

Answer: (C)

Vaughan Williams Class II are beta-adrenergic blockers. They work by dampening sympathetic stimulation of the heart, primarily blocking β1 receptors in the heart to lower heart rate, slow conduction through the AV node, and reduce automaticity of nodal tissue. This combination makes them effective for rate control in tachyarrhythmias and for post‑MI arrhythmia prevention. They are not vasodilators, ACE inhibitors, or diuretics—those drugs belong to different classes with distinct actions and indications. In practice, Class II agents include drugs like metoprolol and propranolol, chosen for their ability to decrease pacemaker activity and conduction without directly affecting vascular tone or volume status.

Vaughan Williams Class II are beta-adrenergic blockers. They work by dampening sympathetic stimulation of the heart, primarily blocking β1 receptors in the heart to lower heart rate, slow conduction through the AV node, and reduce automaticity of nodal tissue. This combination makes them effective for rate control in tachyarrhythmias and for post‑MI arrhythmia prevention. They are not vasodilators, ACE inhibitors, or diuretics—those drugs belong to different classes with distinct actions and indications. In practice, Class II agents include drugs like metoprolol and propranolol, chosen for their ability to decrease pacemaker activity and conduction without directly affecting vascular tone or volume status.