Which of the following describe a pharmacodynamic action?
A) A drug is injected in the arm and later enters the bloodstream.
B) A drug binds to a neuron and alters the neuron's activity.
C) A drug binds to another drug in the body.
D) A drug enters the liver and is quickly metabolized.

Question

Quizplus · Accepted Answer

Pharmacodynamic action refers to the effect of a drug on the body, typically by interacting with molecular targets such as receptors or enzymes. Option B describes how a drug directly binds to a neuron and alters its activity, which is an example of a pharmacodynamic action. The other options describe pharmacokinetic processes, such as absorption (option A), metabolism (option D), and drug-drug interactions (option C).

Which of the Following Describe a Pharmacodynamic Action