drug

nouns

a substance that is used as a medicine or narcotic
drug
is derived from
druggist
domain category
take a hit
is a part of
a collection or stock of drugs
pharmacopoeia
is a type of (narrower)
a substance that exerts some force or effect
agent

verbs

administer a drug to
"They drugged the kidnapped tourist"
dose, drug
is derived from
drugging
use recreational drugs
do drugs, drug