The study of natural drug sources that has been expanded to include chemicals developed and used in laboratory research most correctly describes:
a. Pharmacology
b. Pharmacodynamics
c. Pharmacognosy
d. Pharmacokinetics
c
Rationale: a. Pharmacology is the study of drugs and their actions on the body.
b. Pharmacodynamics refers to the mechanisms by which medications produce biochemical or physiological changes in the body.
c. Study of natural drug sources that has been expanded to include chemicals developed and used in lab research
d. The study of how medications enter the body, reach their site of action and eventually become eliminated.
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