noun
cocaine addict
A person addicted to cocaine. The term is straightforward and neutral in register.
彼はコカイン中毒者として更生施設に入った。
He entered a rehabilitation facility as a cocaine addict.
Specifically a stimulant addict, often referring to methamphetamine.
Compound of コカイン (cocaine, from English) + 中毒 (addiction) + 者 (person).