Drugs that have agonist or antagonist effects on a neurotransmitter would be considered __________.
A) endogenous
B) exogenous
C) endorphins
D) placebos

Question

Quizplus · Accepted Answer

Drugs that have agonist or antagonist effects on a neurotransmitter would be considered exogenous, meaning they are introduced from outside the body. Endogenous refers to substances produced within the body. Endorphins are a type of endogenous neurotransmitter involved in pain relief and mood regulation, and placebos are inert substances used as a control in research studies.

Drugs That Have Agonist or Antagonist Effects on a Neurotransmitter