The use of codeine is problematic because:
A)it is metabolized into heroin.
B)20 percent of Americans have a genetic variation that causes codeine to be metabolized very slowly.
C)10 percent of Americans possess a genetic variation causing codeine to be rapidly metabolized.
D)5 percent of Americans are unable to metabolize the drug resulting in toxic effects.

Question

Quizplus · Accepted Answer

Codeine is metabolized into morphine, not heroin. About 10 percent of Americans have a genetic variation that causes them to metabolize codeine into morphine more rapidly, which can lead to higher morphine levels and potential toxicity.

The Use of Codeine Is Problematic Because