hallucinogenic drug vs psychodelic drug

hallucinogenic drug and psychodelic drug both are nouns.

Word	Noun	Adjective	Verb	Adverb
hallucinogenic drug	Yes	No	No	No
psychodelic drug	Yes	No	No	No

As nouns, hallucinogenic drug and psychodelic drug are synonyms defined as:

hallucinogenic drug and psychodelic drug: a psychoactive drug that induces hallucinations or altered sensory experiences

Other synonyms of hallucinogenic drug include hallucinogen, psychedelic drug.

hallucinogenic drug (noun)	psychodelic drug (noun)
a psychoactive drug that induces hallucinations or altered sensory experiences	a psychoactive drug that induces hallucinations or altered sensory experiences