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12 Cards in this Set

  • Front
  • Back
Most important properties of an ideal drug?
-effectiveness
-safety
-selectivity
Factors that determine the intensity of drug responsiveness?
-administration
-pharmacokinetics
-pharmacodynamics
-sources of individual variation
4 basic processes of pharmacokinetics?
1) absorption
2) distribution
3) metabolism
4) excretion
Maximal efficacy
Largest effect that a drug can produce
Relative potency
Amount of a drug that must be given to produce an effect
4 primary receptor families:
1) cell membrane-embedded enzymes
2) ligand-gated ion channels
3) G protein-coupled receptor systems
4) transcription factors
Intrinsic activity
the ability of a drug to activate the receptor after binding
Agonists
-molecules that activate receptors
-bind to receptors and mimic the actions of body's own regulatory molecules
-affinity and high intrinsic activity
Affinity
the strength of attraction between a drug and its receptor
Antagonists
-prevent receptor activation by endogenous molecules and other drugs
-have affinity but no intrinsic activity
-work against agonists
-2 types:
-noncompetitive: bind irreversibly
to receptors
-competitive: bind reversibly to
receptors
idiosyncratic effect
uncommon response to a drug due to genetic predisposition
iatrogenic disease
disease produced a drug