A drug binds a receptor but switches it on only weakly. It is a:
APassive antigen
BPrivate antidote
CPlasma anticline
DPartial agonist
Answer & Solution
Correct answer: D. Partial agonist
1. It has affinity for the receptor.
2. Its activity is only moderate.
3. So it is a partial agonist.
_Source: OpenStax Pharmacology for Nurses, Chapter 2, Drug Administration and Pharmacokinetics._
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