Multiple Choice
Opiates such as morphine and codeine both contain molecules that are similar to endorphins, the body's natural painkillers. Opiates and morphine bind to receptor sites that are keyed to endorphins and trigger pain-reducing responses. Given these characteristics, both codeine and morphine would be classified as
A) antipsychotics
B) hallucinogens
C) antigens
D) agonists
Correct Answer:
Verified
Correct Answer:
Verified
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