4 - Headaches Flashcards
When do migraines usually develop?
In the morning after awakening
What percentage of migraine patients have auras?
Only 30%
Migraines always involve _____ and _____
Vasodilation and Inflammation
The role of ______ compound is to suppress migraines
Serotonin (5HT)
The role of _____ compound is to promote migraines
Calcitonin Gene-related Peptide (CGRP)
What is MOH?
Medication Overuse Headaches
How often should abortive medications be taken?
1-2 times per week MAX
Otherwise will cause MOH or rebound headache
Which NSAIDs work best for migraines?
Aspirins
Tylenol should only be used in combination with other things (Excedrin)
Aspirin works best when combined with ______
Reglan
When given together its as effective as sumatriptan
What opioid analgesic is used for migraines?
Butorphanol Nasal Spray
What are triptans?
Serotonin receptor agonists
What is the MOA of triptans?
Bind to Serotonin 1B/1D receptors, suppressing the release of CGRP, and thereby reducing inflammation and vasodilation
Triptans exclusively activate _______ receptors
Serotonin1B/1D
They have NO AFFINITY for other serotonin receptors, and they don’t bind to any adrenergic/dopaminergic/cholinergic/histaminergic receptors
Is sumatriptan abortive or prophylactic?
Abortive
About 50% of patients who take sumatriptan experience:
unpleasant chest symptoms
These are NOT ischemic in nature
Heavy arms or chest pressure
In which patients should sumatriptan not be used?
CAD and Pregnancy (teratogenic)
Which drugs should not be given with sumatriptan?
Other triptans or ergots
MAOIs
SSRIs/SNRIs (may cause serotonin syndrome)
What is the MOA of Ergot Alkaloids?
Alters transmission at serotonergic, dopaminergic, and Alpha adrenergic junctions
Withdrawal from ergotamine is characterized by:
headache, N/V, restlessness… basically, looks just like a migraine attack
What is the first line drug for migraine prevention?
Beta blockers, particularly propranolol and metoprolol
Which beta blockers are NOT effective in preventing migraines?
The ones that possess sympathomimetic activity:
Acebutolol, Pinolol
Which antiepileptic drugs are used to prevent migraines?
Divalproex and Topiramate
Divalproex carries a black box warning for:
fatal pancreatitis and hepatitis
Neural tube defects in the fetus
There are five classes of drugs used to prevent migraines:
- Beta Blockers
- Antiepileptics
- Tricyclics
- Estrogens
- CGRP Antagonists