module 8 geriatric Flashcards
pharmacology considerations associated with aging
Diminished glomerular filtration
Changes in density and activity of target receptors
Reduced liver size and hepatic blood flow
Decreased cardiac output
polypharmacy
cognitive decline/confusion
first-line treatment for depression in elderly
SSRIs
difference in typical starting dose of antidepressants for elderly
half the minimal efficacious dosage- then double after one week.
All SSRIs can be given in single daily dose except _____
fluvoxamine: Should be given in two divided doses
Risks of SNRIs in elderly
increased BP
Orthostatic hypotension
syncope
arrythmias
Helpful for sleep and appetite stimulation
mertazapine
SNRI of choice for cognitive stimulation
Low motivation, and pain
cymbalta (duloxetine)
Big problem with TCAs in the elderly
anticholinergic effects
BBW on all antipsychotics
Nearly two-fold increase in the rate of deaths in older patients with behavioral and psychological symptoms of dementia
Acetylcholinesterase inhibitors
Donepezil (Aricept)
rivastigmine (Exelon)
Galantamine (Razadyne)
modulates nicotinic receptors and inhibits acetylcholinesterase
Galantamine
found in snowdrops and daffodils
galantamine (Razadyne)
side effects of AchE inhibitors
GI side effects- nausea, vomiting, diarrhea, appetite loss
How long can it take for donepezil to work?
6 weeks
May exacerbate asthma, increase risk of ulcers, cause bradycardia or heart block
donepezil (Aricept)