Essential Medications: Clinical Pharmacology & Patient Care
Classified in Medicine & Health
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Pharmacology Fundamentals
Pharmacokinetics: What the Body Does to the Drug
Phases:
Absorption – How a drug enters the bloodstream
Distribution – How a drug travels through the body
Metabolism – How a drug is broken down (mainly in the liver)
Excretion – How a drug leaves the body (mainly through the kidneys)
🧠 Memory Trick: ADME — Absorb, Deliver, Metabolize, Exit
Pharmacodynamics: What the Drug Does to the Body
Describes how a drug works at the target site
Involves receptor binding, enzyme interactions, and therapeutic vs. side effects
Examples:
Beta blockers bind to beta receptors → slow heart rate
Insulin binds to insulin receptors → lowers blood sugar
Drug Release Types: ER, IR, SR, XL, CR
Type | Stands For | What It Means | Key Teaching Points |
---|---|---|---|
ER | Extended- |