dose vs drug

dose and drug both are nouns.

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

As verbs, dose and drug are synonyms defined as:

dose (noun)	drug (noun)
a measured portion of medicine taken at any one time	a substance that is used as a medicine or narcotic
street name for lysergic acid diethylamide
the quantity of an active agent (substance or radiation) taken in or absorbed at any one time
a communicable infection transmitted by sexual intercourse or genital contact

dose (verb)	drug (verb)
administer a drug to	administer a drug to
treat with an agent; add (an agent) to	use recreational drugs