antipsychotic agent vs antipsychotic

antipsychotic agent and antipsychotic both are nouns.

Word	Noun	Adjective	Verb	Adverb
antipsychotic agent	Yes	No	No	No
antipsychotic	Yes	No	No	No

As nouns, antipsychotic agent and antipsychotic are synonyms defined as:

antipsychotic agent and antipsychotic: tranquilizer used to treat psychotic conditions when a calming effect is desired

antipsychotic agent (noun)	antipsychotic (noun)
tranquilizer used to treat psychotic conditions when a calming effect is desired	tranquilizer used to treat psychotic conditions when a calming effect is desired