PK (Pharmacokinetics)

Pharmacokinetics (PK) is the study of how a substance, like a medication, moves through the body. It encompasses four main processes: absorption (how the drug enters the bloodstream), distribution (how it spreads to different tissues), metabolism (how the body breaks it down), and excretion (how it's eliminated, usually through urine or feces). Understanding PK helps determine the right dose and timing for medications to ensure they are effective and safe, tailoring treatments to individual needs for optimal health outcomes.