pharmacology Flashcards
explains what a drug does to the body, how the drug works; cell/organ/system effect, side effects, effective against disease
pharmacodynamics
explains what the body does to a drug; how drug is absorbed into the blood, distributed in the body, metabolized, and excreted from the body
pharmacokinetics
a ligand that initiates a cellular response by binding to a receptor
agonist
ligand with no effect on cell function, as it blocks other ligands from the receptor; also called blockers or inhibitors
antagonist
the level of attraction between a drug and receptor. doesn’t predict the magnitude of activity or cell response
affinity
the absolute number of drug molecules required to produce a given pharmacologic effect
potency
describes if the drug works, if it achieved the intended effect for which it was prescribed
efficacy
term used to describe individual response differences between patients
variability
ratio of toxic dose for 50% of patients to effective dose for 50% of patients
therapeutic index
two similar acting drugs act to produce the sum of their individual effects
addictive drug interactions
two unalike drugs produce a greater effect than the sum of their individual effects
synergistic drug interaction
an effect of one drug is multiplied by another drug lacking that effect
potentiation
the effect of one drug is decreased by another drug
antagonism
fast affecting drug routes
IV, inhalation, sublingual
slow affecting drug routes
oral, subq, IM