Alfred,who has a history of illegal drug use,is currently using methadone to help him quit.His brain no longer produces endorphins because of his drug use.He was using a(n)
A) barbiturate.
B) opiate.
C) stimulant.
D) amphetamine.

Question

Quizplus · Accepted Answer

Methadone is an opiate used to treat opiate addiction. The fact that Alfred's brain no longer produces endorphins suggests that he has damaged the natural reward system in his brain, which is a common effect of opiate use.

Alfred,who Has a History of Illegal Drug Use,is Currently Using