Some psychoactive drugs help in the reduction of pain by inhibiting the release of substance P.These drugs:
A)bind to GABA receptor sites
B)bind to opiate receptor sites
C)block norepinephrine receptor sites
D)block dopamine receptor sites

Question

Quizplus · Accepted Answer

Opiate drugs such as morphine, codeine, and fentanyl bind to opiate receptor sites in the brain and spinal cord, inhibiting the release of substance P and thereby reducing pain.

Some Psychoactive Drugs Help in the Reduction of Pain by Inhibiting