Which of the following was widely used as a pain reliever in the nineteenth century, until it was found to be highly addictive?
A)Codeine
B)Morphine
C)Nicotine
D)Methadone

Question

Quizplus · Accepted Answer

Morphine was widely used as a pain reliever in the nineteenth century, but it was later found to be highly addictive. Codeine is still used today as a pain reliever, but it is less addictive than morphine. Nicotine is a stimulant found in tobacco products, and methadone is a synthetic opioid used to treat addiction to opioids such as morphine.

Which of the Following Was Widely Used as a Pain