This question is incomplete because it is lacking the necessary answer options, which I have provided below:
A . Cocaine, because it floods the brain with dopamine.
B . Mescaline, because it floods the brain with dopamine.
C . An amphetamine, because they lead to increased central nervous system activity.
D . A tricyclic antidepressant, because they block serotonin and norepinephrine transporters.
E . Prozac, because it blocks the reuptake of serotonin.
So, given your question, the answer option which is classified as an antagonist drug is: D . A tricyclic antidepressant, because they block serotonin and norepinephrine transporters.
A drug can be defined as a chemical substance that is typically ingested by a sick patient, so as to achieve any of the following:
In Medicine and Pharmacy, there are two (2) main categories of drug and these include:
I. Agonist drug: it is a drug that typically acts to intensify or mimick the effects of a specific neurotransmitter or physiologic receptor and thereby, producing a desired response.
II. Antagonist drug: it is a drug that binds to the receptor without activating it and as such blocks it from performing or producing a response.
In conclusion, a drug which is classified as an antagonist drug is a tricyclic antidepressant, because it blocks the serotonin and norepinephrine transporters.
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