pharmacokinetics
The process of drug movement throughout the body that allows for the drug to act
absorption
The process by which a drug passes into the bloodstream
what affects drug absorption
-Route of administration
-Ability of medication to disintegrate and/or dissolve
-Movement of drug from site of administration into the blood
distribution
movement of the drug out of the bloodstream and into the body tissues
distribution is affected by
circulation
membrane permeability
blood brain barrier
protein binding
metabolism
process by which the body chemically changes the drug into a form that can be excreted
primary organ for drug metabolism
the liver
first pass effect 5 steps
excretion
process by which drugs are eliminated from the body
primary organ excretion
kidneys
pharmacodynamics
the study of the effects of drugs in the body
therapeutic effect
the intended, beneficial action of a drug
therapeutic range
Range of doses that produce therapeutic response without causing adverse effects
analgesic
painkiller
primary effects
the intended effect/what we wanted to happen
secondary effects
other things that happen/can be good or bad
what do you monitor for liver failure
toxicity
side effects vs adverse drug reactions
SE: predictable things that can happen as a result oftaking a drug
AD: unintentional, unexpected reactions to a drug. ALWAYS undesirable
onset
how long after ingestion the medication starts working
peak
The highest plasma concentration of the drug (after absorption)
trough
The lowest plasma concentration of the drug (after absorption)
duration
how long the drug lasts before it falls below the minimum effective concentration
additive effects
Giving 2 drugs at once = the sum of the effects of the two
1 + 2 = 3
synergistic effects
Giving 2 drugs at once = a dramatic increase in the effects of both