A drug that is able to unlock or activate a receptor and produce an effect is known as a/an ________ drug
A) agonist
B) antagonist
C) blocker
D) synergist
Answer: A
B) Antagonists (blockers) are drugs that can fit a receptor, but cannot unlock or activate the receptor.
C) Antagonists (blockers) are drugs that can fit a receptor, but cannot unlock or activate the receptor.
D) Synergism refers to the combined effect of two drugs, not one.
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