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12 Cards in this Set
- Front
- Back
Most important properties of an ideal drug?
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-effectiveness
-safety -selectivity |
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Factors that determine the intensity of drug responsiveness?
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-administration
-pharmacokinetics -pharmacodynamics -sources of individual variation |
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4 basic processes of pharmacokinetics?
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1) absorption
2) distribution 3) metabolism 4) excretion |
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Maximal efficacy
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Largest effect that a drug can produce
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Relative potency
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Amount of a drug that must be given to produce an effect
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4 primary receptor families:
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1) cell membrane-embedded enzymes
2) ligand-gated ion channels 3) G protein-coupled receptor systems 4) transcription factors |
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Intrinsic activity
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the ability of a drug to activate the receptor after binding
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Agonists
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-molecules that activate receptors
-bind to receptors and mimic the actions of body's own regulatory molecules -affinity and high intrinsic activity |
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Affinity
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the strength of attraction between a drug and its receptor
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Antagonists
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-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 |
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idiosyncratic effect
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uncommon response to a drug due to genetic predisposition
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iatrogenic disease
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disease produced a drug
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