migraines Flashcards
which criteria need to be met to define migraine?
N/V OR photophobia and phonophobia
temporal progression of migraine
- prodrome
- aura
- HA
- resolution
- postdrome
visual disturbances occur during which phase of migraine?
aura phase
non-specific pain meds used to tx acute migraines
ASA, acetaminophen, NSAIDS, opiates
specific migraine drugs
ergotamine, dihydroergotamine, triptans
preventive tx reduces migraine attacks by ____% in ____ of patients
reduces by 50% in 2/3 of patients
what is the tx of choice for preventative tx of migraines?
beta blockers
AE: Drowsiness, weight gain, tremor, hair loss, hematological and liver abnml, teratogenic - what drug?
anticonvulsants used for migraines - valproic acid, topiramate
issue with using NSAIDS + acetaminophen for tx of acute migraine attacks?
if overused, drug can transform migraine into a more severe, chronic disorder
which antiemetic may have some direct beneficial effects in tx of migraines?
metoclopramide
MOA: Vasoconstriction due to stimulation of a-adrenergic and 5HT1D receptors (partial agonists)
ergot alkaloids (ergotamine + dihydroergotamine)
why are the -triptans better than ergot derivatives
- selective pharmacology
2. established efficacy + safety record
MOA: Selective 5HT1d/1b receptor agonists (vasoconstriction); inhib activation of trigemial afferent nociceptors - which drug?
sumatriptan
what typically resolves most migraines?
sleep