If a newly-developed drug is found to bind to dopamine receptors but does not activate them, the drug is classified as a(n)
A) antagonist.
B) endogenous ligand.
C) prototype.
D) agonist.

Question

Quizplus · Accepted Answer

A drug that binds to a receptor but does not activate it is an antagonist. In this case, the drug is binding to dopamine receptors but not activating them, meaning it is blocking dopamine from binding to and activating those receptors.

If a Newly-Developed Drug Is Found to Bind to Dopamine