Rohypnol vs club drug

Rohypnol and club drug both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rohypnol	Yes	No	No	No
club drug	Yes	No	No	No

As nouns, club drug is a hypernym of Rohypnol; that is, club drug is a word with a broader meaning than Rohypnol:

Rohypnol: a depressant and tranquilizer (trade name Rohypnol) often used in the commission of sexual assault; legally available in Europe and Mexico and Colombia
club drug: a controlled substance that is usually taken by young people at dance clubs and raves

Rohypnol (noun)	club drug (noun)
a depressant and tranquilizer (trade name Rohypnol) often used in the commission of sexual assault; legally available in Europe and Mexico and Colombia	a controlled substance that is usually taken by young people at dance clubs and raves