What do the technical words in a package insert (PI) mean?
The PI contains many technical words because it provides drug information that is learned using medical science. To provide the most accurate and precise information to the physician, the PI must use scientific terms. One of the sciences that the PI relies on to describe a drug is pharmacology. Pharmacology is the scientific study of drugs and their effects in living organisms. Pharmacology can be divided into two broad areas: pharmacokinetics and pharmacodynamics. • Pharmacokinetics is the study of how the body acts on an administered drug, “processing” it from its first entry into the body until its last exit from the body. Pharmacokinetics information tells us how drugs are absorbed, distributed, broken down, and eliminated by the body, and especially how quickly these processes happen. • Pharmacodynamics is the study of how a drug acts on the body. Pharmacodynamics information tells us how a drug alters body chemistry and the functioning of living tissues, and focuses especially on
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