Final answer:
Pharmacotherapy, pharmacodynamics, pharmacokinetics, and toxicology are all branches of study related to drugs and their effects on the body.
Step-by-step explanation:
Pharmacotherapy: The study of the medical uses of drugs.
Pharmacodynamics: The study of how drugs produce their effects.
Pharmacokinetics: The study of what happens to a drug while in the body.
Toxicology: The study of the harmful effects of drugs.
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