によって Darren Nguyen 4か月前.
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Receptor Theory
Receptor Theory
Safety
Certain safety factor
Therapeutic Index
Desensitization
physiological adaptation
altered drug metabolism
exhaustion of mediators
translocation of receptors
altered conformation of receptors
tolerance
Combinations
synergistic/potentiating
additive
Antagonism
chemical
physiological
signaling blockade
pharmacokinetic
allosteric
Potency
effective concentration
effective dose
Quantitative aspects
Drug Receptor interaction
equilibrium dissociation constant
logarithmic
linear
Drug-receptor binding
Activation
governed by efficacy
Occupation
governed by affinity
Drug targets
enzymes
carriers/transport molecules
Ion channels
Membrane receptors
Specificity defined by:
site specificity
ligand specificity
High structural conservation
Paul Ehrlich proposed:
Drugs don’t have any supernatural properties by
which their mere presence causes an effect
A drug will not work unless it is bound
Drugs require direct interaction with tissue