neuroleptic agent vs antipsychotic agent

neuroleptic agent and antipsychotic agent both are nouns.

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

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

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

neuroleptic agent (noun)	antipsychotic agent (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