peddler vs drug peddler

peddler and drug peddler both are nouns.

Word	Noun	Adjective	Verb	Adverb
peddler	Yes	No	No	No
drug peddler	Yes	No	No	No

As nouns, peddler and drug peddler are synonyms defined as:

Other synonyms of peddler include drug dealer, drug trafficker, pusher.

peddler (noun)	drug peddler (noun)
someone who travels about selling his wares (as on the streets or at carnivals)	an unlicensed dealer in illegal drugs
an unlicensed dealer in illegal drugs