Migraines Flashcards
Receptors important for migraines
5HT1B and 1D -produce vasoconstriction in CNS
Reduce CGRP
Mild analgesics
Aspirin, acetaminophen, ibuprofen, naproxen
Migraine Pathophysiology
CGRP released -> vasodilation of cranial blood vessels-> increased pressure on cranial nerves! pain
Migraine sxs
Unilateral throbbing HA Nausea, vomiting Photophobia Irritability GI tract reduced
Butalbital and codeine
Migraine tx
Overuse can cause rebound HA
Combination analgesics
Metoclopramide
Antiemetic
Increases GI motility
Sumatriptan
5HT1 receptor
Vasoconstriction
Reduces n&v
Increases gi motility
Don’t use with MAOI or propranolol
Dihydroergotamine
Perferred ergot alkaloid
Vasoconstriction
Can actually cause n&v
Don’t use with CYP3A4 inhibitors or cerebral and peripheral ischemia
Butophanol
Migraine tx
Kappa opioid receptor agonist similar to Pentazocine
Propranolol
B receptor agonist
Prophylactic tx of migraines
Amitriptyline
Tricyclic antidepressant
Prophylactic tx of migraines
Valproic acid
Anti-epilepsy drug
Prophylactic tx of migraines
Botulinum toxin A
Prophylactic tx of migraines