Migraine Treatment
Acute Treatment
- The American Academy of Neurology recommends nonsteroidal anti-inflammatory drugs (NSAIDs) as first-line therapy for mild to moderate migraine attacks, while triptans are first-line for moderate to severe attacks 1, 2, 3
- NSAIDs inhibit cyclooxygenase enzymes, reducing prostaglandin synthesis and inflammation, with examples including aspirin, ibuprofen, and naproxen sodium 1, 2
- Typical dosing for ibuprofen is 400-800mg every 6-8 hours as needed, and for aspirin is 900-1000mg as needed 1, 2
- Triptans, such as sumatriptan and rizatriptan, activate serotonin receptors causing cranial vessel constriction and inhibition of vasoactive neuropeptide release, with typical dosing ranging from 25-100mg orally or 6mg subcutaneously for sumatriptan 4, 5
- Ergot alkaloids, such as dihydroergotamine, are non-selective serotonin receptor agonists causing vasoconstriction, with typical dosing of 0.5-1mg IM/IV or intranasal 4
Preventive Treatment
- The American Academy of Neurology recommends beta blockers, such as propranolol, as first-line preventive agents for migraine, with a mechanism of action involving blockage of beta-adrenergic receptors 1, 6
- Antidepressants, such as amitriptyline, increase synaptic serotonin and norepinephrine, with typical dosing of 30-150mg/day 1, 6
- Anticonvulsants, such as divalproex sodium, enhance GABA activity and block sodium channels, with typical dosing of 500-1500mg/day 1, 6
- Calcium channel blockers, such as flunarizine, block calcium influx and affect neurovascular function, with side effects including sedation and weight gain 7
- Nutraceuticals, such as magnesium and riboflavin, have fair evidence for modest efficacy in migraine prevention, with mechanisms involving neurotransmission and mitochondrial function 8
Clinical Considerations
- The American Headache Society recommends considering non-oral routes of administration when nausea and vomiting are prominent symptoms, and limiting acute treatments to no more than twice weekly to prevent medication overuse headache 1, 3
- Preventive therapy is indicated for patients with frequent or disabling migraine attacks, and a stepped care approach should be used, starting with NSAIDs for mild-moderate attacks and triptans for moderate-severe attacks 1, 2, 4
- Triptans are most effective when taken early in an attack, but should not be taken during the aura phase 2
First-Line Medication for Acute Migraines with Nausea
Treatment Algorithm for Migraines with Nausea
- The American Academy of Family Physicians recommends selecting a non-oral route of administration when nausea is a significant component of migraine attacks, along with an antiemetic medication to treat the nausea 9, 10, 11
- The American College of Physicians suggests adding an antiemetic medication to specifically target the nausea symptoms 9, 10
- For mild to moderate attacks, the American Academy of Family Physicians recommends using NSAIDs via non-oral routes when possible 11, 12
- For moderate to severe attacks, the American College of Physicians recommends using triptans via non-oral routes (e.g., sumatriptan subcutaneous injection or nasal spray) 11
Evidence-Based Considerations
- The American Academy of Family Physicians notes that oral medications may have delayed absorption due to gastroparesis that often accompanies migraine attacks 12
- The American College of Physicians advises that triptans should be avoided in patients with uncontrolled hypertension, basilar or hemiplegic migraine, or significant cardiovascular disease 9
- The American Academy of Family Physicians recommends limiting acute treatments to no more than twice weekly to prevent medication overuse headache 9
Antiemetic Options
- The American Academy of Family Physicians suggests that metoclopramide can treat nausea and improve gastric motility which may be impaired during migraine attacks 12
- The American College of Physicians notes that antiemetics like prochlorperazine can effectively relieve both headache pain and nausea 12
- The American College of Physicians recommends that antiemetics should not be restricted to patients who are vomiting, as nausea itself is one of the most disabling symptoms of migraine 10