Editing Pharmacology (section)

== <span style="color: #FFFFFF;">Remembering</span> ==
* '''Pharmacology''' — The branch of medicine concerned with the uses, effects, and modes of action of drugs.
* '''Drug''' — Any substance that, when taken into a living organism, may modify one or more of its functions.
* '''Pharmacokinetics (PK)''' — The study of the movement of drugs through the body (ADME).
* '''Pharmacodynamics (PD)''' — The study of the biochemical and physiological effects of drugs on the body.
* '''ADME''' — The four stages of a drug's life: Absorption, Distribution, Metabolism, and Excretion.
* '''Bioavailability''' — The fraction of an administered drug that reaches the systemic circulation in an active form.
* '''Half-Life ($t_{1/2}$)''' — The time required for the concentration of a drug in the body to be reduced by one-half.
* '''Agonist''' — A drug that binds to a receptor and activates it to produce a biological response.
* '''Antagonist''' — A drug that binds to a receptor and blocks or dampens a biological response.
* '''Therapeutic Index (TI)''' — The ratio between the toxic dose and the effective dose; a measure of a drug's safety.
* '''Placebo''' — A substance with no active pharmacological effect, used as a control in testing.
* '''Tolerance''' — A state where the body becomes less responsive to a drug over time, requiring higher doses.
* '''Toxicity''' — The degree to which a substance can damage an organism.
* '''Efficacy''' — The maximum response that can be produced by a drug.
* '''Potency''' — The amount of drug required to produce an effect of a given intensity.
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