Dosage regimens Flashcards
Half life is
time taken for amount of drug in body to decrease by half of maximum level
Half life is important is it lets us know
toxic concentration levels in body and when to stop 1 drug and start another
If patients have renal or hepatic disease what will happen to the half life
increase
To excrete a drug there is an increased blood flow to
the kidneys and a decreased level of plasma protein binding
Drug metabolising enzymes can be
inhibited (Prozac) and induced (Alcohol)
Pharmacological activation is
when products are more reactive than the parent drug
Phase 1 reactions prepare drugs for phase 2 and
make drugs more water soluble
Phase 2 reactions conjugate drug to
create large molecules like amino acids.
Pharmacological inactivation is
when drugs are inactive with decreased affinity for receptors