This drug reduces blood pressure by acting on vasomotor centers in the CNS:
Correct answer: B. Clonidine
- A. Labetalol
- B. Clonidine
- C. Enalapril
- D. Nifedipine
Explanation
Clonidine stimulates central α₂ receptors, reducing sympathetic outflow from vasomotor centres and thereby lowering blood pressure. Labetalol acts mainly through peripheral α₁ and β blockade, while enalapril and nifedipine act through the renin-angiotensin system and calcium channels, respectively.
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