Answer to Pharmacology MCQ 467
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T
he Correct Option is APhenoxybenzamine has a short elimination half-life but a very long duration of action-about 48 hours-because it binds covalently to its receptor.
Phenoxybenzamine binds covalently to the alpha receptor, thereby producing an irreversible (insurmountable) blockade.
Category: Pharmacology MCQs
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