Neurology
Migraine Headache
Diagnose migraine clinically while screening for secondary headache and medication overuse; treat attacks early, select prevention by monthly migraine burden and comorbidity, and use parenteral evidence-based regimens for refractory emergency presentations.
First decision
Separate typical migraine from secondary headache before treating
Use the headache phenotype, neurologic examination, temporal pattern, and red flags to determine whether urgent testing supersedes migraine-directed therapy.
A patient with established, typical migraine, a normal neurologic examination, and no red-flag or atypical features generally does not need brain imaging. The American College of Radiology and American Headache Society recommend against routine neuroimaging in this setting; estimated tumor yield in a patient without malignancy history and uncomplicated headache is less than 0.1%. ccjmccjmWhen is brain MRI with and without contrast indicated for evaluation of headache? | Cleveland Clinic Journal of medicine
Escalate beyond a primary-migraine pathway for abrupt or progressive change in headache pattern, abnormal neurologic findings, systemic illness, immunocompromise, cancer history, pregnancy-related concern, trauma, positional headache, papilledema, or features suggesting vascular disease, infection, inflammation, mass lesion, or abnormal intracranial pressure. Medication overuse is itself a common secondary headache cause and should be assessed at every acute-care and preventive-treatment visit. ccjmccjmWhen is brain MRI with and without contrast indicated for evaluation of headache? | Cleveland Clinic Journal of medicine
For suspected idiopathic intracranial hypertension, obtain neuroimaging before lumbar puncture to exclude a space-occupying lesion and evaluate secondary causes; a cerebrospinal fluid opening pressure of at least 25 cm H2O is a diagnostic criterion. ccjmccjmWhen is brain MRI with and without contrast indicated for evaluation of headache? | Cleveland Clinic Journal of medicine
Investigate or refer for atypical aura with motor weakness, diplopia, monocular visual symptoms, poor balance, or decreased consciousness rather than presuming typical migraine aura. nice org uknice org ukHeadaches in over 12s: diagnosis and management
Use a headache diary to document attack frequency, duration, severity, acute-medication days, menstrual timing, and treatment response; diary data determine both medication-overuse risk and prevention eligibility. PubMed+1PubMedMigraine Prophylaxis - StatPearls - NCBI Bookshelf - NIHnice org ukHeadaches in over 12s: diagnosis and management
Phenotype
Confirm the migraine phenotype and identify modifiers that change management
The clinical history should establish migraine subtype, attack burden, and acute-treatment constraints.
Migraine is diagnosed primarily from history. In adults, attacks typically last 4 to 72 hours and are accompanied by nausea, vomiting, photophobia, and/or phonophobia; aura may produce reversible visual, sensory, or speech symptoms. WHO+1WHOMigraine and other headache disordersnice org ukHeadaches in over 12s: diagnosis and management In children and adolescents, attacks may last 2 to 72 hours, are often bilateral, and may have prominent gastrointestinal symptoms. NatureNatureDiagnosis and management of migraine in ten steps
Document whether aura is typical versus atypical. Typical aura may be visual positive or negative phenomena, sensory positive or negative symptoms, or speech disturbance; atypical symptoms should shift management toward investigation rather than routine migraine escalation. nice org uknice org ukHeadaches in over 12s: diagnosis and management
Identify menstrual association with a diary spanning at least two cycles. Suspect menstrual-related migraine when attacks occur predominantly from 2 days before through 3 days after menstruation begins in at least 2 of 3 consecutive cycles. nice org uknice org ukHeadaches in over 12s: diagnosis and management This pattern permits consideration of short-term perimenstrual prevention with frovatriptan, naratriptan, or zolmitriptan started several days before the anticipated menstrual onset and continued for 5 to 6 days. PubMedPubMedMigraine Prophylaxis - StatPearls - NCBI Bookshelf - NIH
Ask specifically about depression, epilepsy, stroke, and myocardial infarction because these comorbidities occur with migraine and may affect treatment selection or safety assessment. NatureNatureMigraine | Nature Reviews Disease Primers
In apparent late-onset migraine, suspect an underlying cause; older adults also have higher risks of secondary headache, comorbidity, and treatment adverse effects. NatureNatureDiagnosis and management of migraine in ten steps
| Pattern | How to establish it | Management implication |
|---|---|---|
| Typical aura | Reversible visual, sensory, or speech symptoms. nice org uknice org ukHeadaches in over 12s: diagnosis and management | Manage as migraine after confirming no atypical aura feature. nice org uknice org ukHeadaches in over 12s: diagnosis and management |
| Atypical aura | Motor weakness, diplopia, monocular visual symptoms, poor balance, or decreased consciousness. nice org uknice org ukHeadaches in over 12s: diagnosis and management | Pursue further investigation and/or referral. nice org uknice org ukHeadaches in over 12s: diagnosis and management |
| Menstrual-related migraine | Diary shows attacks from day -2 through day +3 of menses in at least 2 of 3 cycles; document at least 2 cycles. nice org uknice org ukHeadaches in over 12s: diagnosis and management | Consider short-term perimenstrual triptan prevention for 5 to 6 days around expected onset. PubMedPubMedMigraine Prophylaxis - StatPearls - NCBI Bookshelf - NIH |
| Pediatric migraine | History-based diagnosis; attacks can last 2 to 72 hours and may be bilateral with gastrointestinal prominence. NatureNatureDiagnosis and management of migraine in ten steps | Use age-appropriate acute and preventive strategies; ibuprofen is recommended for acute treatment when bed rest is insufficient. NatureNatureDiagnosis and management of migraine in ten steps |
Attack treatment
Treat attacks early and match therapy to attack severity and contraindications
Set an attack plan that treats early, limits acute-medication days, and specifies escalation when oral therapy fails.
For mild migraine attacks, use an analgesic or NSAID early in the attack; for moderate or severe attacks, use a triptan when there is no contraindication. NatureNatureMigraine | Nature Reviews Disease Primers Acute migraine therapies should be selected with cardiovascular safety, prior efficacy, and tolerability in mind; vascular safety concerns are a key limitation of triptans and other vasoconstrictive therapies. NatureNatureMigraine | Nature Reviews Disease Primers
Avoid opioids as first-line treatment for acute migraine. Guidelines recommend against opioid-first approaches for migraine and other primary headaches, and the 2025 American Headache Society emergency evidence assessment states that IV hydromorphone must not be offered to eligible adults presenting with migraine requiring parenteral therapy. Nature+1NatureCharacteristics of Patients Referred To A Specialized Headache Clinic | Scientific ReportsPubMed2025 guideline update to acute treatment of migraine for adults in the emergency department: The American Headache Society evidence assessment of parenteral pharmacotherapies - PubMed
For pregnancy, offer paracetamol for acute migraine. A triptan or NSAID may be considered only after discussing the treatment need and risks. nice org uknice org ukHeadaches in over 12s: diagnosis and management For children and adolescents, bed rest may suffice for some attacks; otherwise, ibuprofen is recommended for acute treatment. NatureNatureDiagnosis and management of migraine in ten steps
Review every acute medication, including over-the-counter combination products, at each follow-up visit; do not allow triptans, opioids, ergots, or combination analgesics to reach 10 or more days per month for 3 months, or simple analgesics/NSAIDs to reach 15 or more days per month for 3 months. ema europa eu+2ema europa euAssessment report - Vyepti - European Medicines Agencynice org ukHeadaches in over 12s: diagnosis and managementcks nice org ukScenario: Adults | Management | Migraine - CKS - NICE
If acute treatment repeatedly fails, confirm the diagnosis, reassess medication overuse and red flags, review timing of treatment, and initiate or optimize prevention when the patient meets burden criteria. acpjournals+1acpjournals2023 U.S. Department of Veterans Affairs and ...ccjmWhen is brain MRI with and without contrast indicated for evaluation of headache? | Cleveland Clinic Journal of medicine
Refractory attack
Use evidence-based parenteral therapy for emergency presentations
After excluding a time-sensitive secondary cause, use nonopioid parenteral treatment and nerve-block options according to eligibility.
For adults in the emergency department with migraine requiring parenteral therapy, IV prochlorperazine and greater occipital nerve block should be offered when no contraindication is present. Ketorolac IV, metoclopramide IV, subcutaneous sumatriptan, and supraorbital nerve block should be offered when appropriate. PubMedPubMed2025 guideline update to acute treatment of migraine for adults in the emergency department: The American Headache Society evidence assessment of parenteral pharmacotherapies - PubMed
Chlorpromazine IV, dexamethasone IV, and valproate IV may be offered, reflecting lower-certainty support than the therapies that should or must be offered. IV paracetamol should not be offered for this indication. PubMedPubMed2025 guideline update to acute treatment of migraine for adults in the emergency department: The American Headache Society evidence assessment of parenteral pharmacotherapies - PubMed Treatment failure should prompt reassessment for diagnostic error, medication overuse, and a secondary headache process rather than opioid rescue. PubMed+1PubMed2025 guideline update to acute treatment of migraine for adults in the emergency department: The American Headache Society evidence assessment of parenteral pharmacotherapies - PubMedccjmWhen is brain MRI with and without contrast indicated for evaluation of headache? | Cleveland Clinic Journal of medicine
Consider eptinezumab only for patients matching its clinical-trial population; no recommendation was made for an ED-specific population. PubMedPubMed2025 guideline update to acute treatment of migraine for adults in the emergency department: The American Headache Society evidence assessment of parenteral pharmacotherapies - PubMed
If a nerve block is selected, document the headache phenotype, prior treatment response, and post-procedure response to guide future rescue planning. PubMedPubMed2025 guideline update to acute treatment of migraine for adults in the emergency department: The American Headache Society evidence assessment of parenteral pharmacotherapies - PubMed
Longitudinal control
Start prevention based on migraine-day burden and individualize the regimen
Prevention reduces attack frequency, severity, duration, distress, and disability when acute therapy alone is insufficient.
Initiate preventive treatment when a patient has 4 or more migraine days per month, or 2 or more migraine days per month with disabling attacks despite acute treatment. acpjournalsacpjournals2023 U.S. Department of Veterans Affairs and ... Before selecting an agent, quantify monthly migraine days, acute-medication days, disability, prior preventive trials, pregnancy potential, blood pressure and cardiovascular history, psychiatric comorbidity, epilepsy, and treatment preference.
Medication options for episodic migraine prevention include angiotensin-receptor blockers, lisinopril, magnesium, topiramate, valproate, and memantine. acpjournalsacpjournalsclinical guideline In children and adolescents, propranolol, amitriptyline, or topiramate are prevention options. NatureNatureDiagnosis and management of migraine in ten steps Use the headache diary to assess baseline burden and response rather than judging efficacy from recollection alone. PubMedPubMedMigraine Prophylaxis - StatPearls - NCBI Bookshelf - NIH
CGRP-targeting options include oral atogepant, IV eptinezumab, and subcutaneous fremanezumab, erenumab, and galcanezumab. PubMedPubMedHeadaches in over 12s: diagnosis and management - NCBI Bookshelf For episodic migraine, rimegepant is an oral CGRP inhibitor option for adults with 4 to fewer than 15 migraine attacks per month in the cited guidance after at least 3 preventive medicines have failed, are not tolerated, or are unsuitable; this access framework is not a U.S. coverage standard. PubMedPubMedHeadaches in over 12s: diagnosis and management - NCBI Bookshelf
For menstrual-predominant attacks, a short-term triptan strategy can supplement or replace continuous prevention when the diary demonstrates predictable timing: start frovatriptan, naratriptan, or zolmitriptan several days before expected menses and continue for 5 to 6 days. PubMedPubMedMigraine Prophylaxis - StatPearls - NCBI Bookshelf - NIH
Set a diary-based follow-up target that includes monthly migraine days, acute-medication days, disability, adverse effects, and persistence with treatment. PubMed+1PubMedMigraine Prophylaxis - StatPearls - NCBI Bookshelf - NIHPubMedMigraine Headache - StatPearls - NCBI Bookshelf
If headache frequency rises despite prevention, first reassess acute-medication exposure because triptan, opioid, ergot, combination-analgesic, and simple-analgesic thresholds identify medication overuse that can perpetuate headache. ema europa eu+2ema europa euAssessment report - Vyepti - European Medicines Agencynice org ukHeadaches in over 12s: diagnosis and managementcks nice org ukScenario: Adults | Management | Migraine - CKS - NICE
Use nonpharmacologic adjuncts when acceptable, including trigger identification with a diary, relaxation, cognitive behavioral therapy, biofeedback, acupuncture, or massage; these should complement rather than obscure assessment of pharmacologic response. PubMedPubMedMigraine Prophylaxis - StatPearls - NCBI Bookshelf - NIH
| Clinical situation | Prevention strategy | Monitoring decision |
|---|---|---|
| At least 4 migraine days per month | Initiate preventive therapy; options include topiramate, valproate, angiotensin-receptor blockers, lisinopril, magnesium, or memantine. acpjournals+1acpjournalsclinical guidelineacpjournals2023 U.S. Department of Veterans Affairs and ... | Use a headache diary to track migraine days, disability, adverse effects, and acute-medication days. PubMedPubMedMigraine Prophylaxis - StatPearls - NCBI Bookshelf - NIH |
| At least 2 migraine days per month with disabling attacks despite acute treatment | Initiate prevention rather than repeatedly escalating acute therapy. acpjournalsacpjournals2023 U.S. Department of Veterans Affairs and ... | Check for medication-overuse thresholds at each reassessment. ema europa eu+1ema europa euAssessment report - Vyepti - European Medicines Agencynice org ukHeadaches in over 12s: diagnosis and management |
| Pediatric or adolescent migraine requiring prevention | Consider propranolol, amitriptyline, or topiramate. NatureNatureDiagnosis and management of migraine in ten steps | Track frequency and functional impact with a diary. PubMedPubMedMigraine Prophylaxis - StatPearls - NCBI Bookshelf - NIH |
| Predictable menstrual-related migraine | Use short-term frovatriptan, naratriptan, or zolmitriptan beginning several days before menses for 5 to 6 days. PubMedPubMedMigraine Prophylaxis - StatPearls - NCBI Bookshelf - NIH | Confirm timing over at least 2 diary-recorded cycles. nice org uknice org ukHeadaches in over 12s: diagnosis and management |
| Prior preventive failures or intolerance | Consider CGRP-targeting prevention, including atogepant, eptinezumab, fremanezumab, erenumab, galcanezumab, or rimegepant where clinically appropriate and accessible. PubMedPubMedHeadaches in over 12s: diagnosis and management - NCBI Bookshelf | Document prior preventive exposure, benefit, tolerability, and access requirements. PubMedPubMedHeadaches in over 12s: diagnosis and management - NCBI Bookshelf |
Prevent chronicity
Treat medication overuse as a diagnostic and therapeutic priority
Frequent acute-drug exposure can worsen headache and make both acute and preventive regimens appear ineffective.
Diagnose suspected medication-overuse headache from the pattern of worsening or newly developed headache during frequent acute-medication use for 3 months or more. The exposure threshold is 10 or more days per month for triptans, opioids, ergots, and combination analgesics, and 15 or more days per month for acetaminophen, aspirin, or NSAIDs. ema europa eu+2ema europa euAssessment report - Vyepti - European Medicines Agencynice org ukHeadaches in over 12s: diagnosis and managementcks nice org ukScenario: Adults | Management | Migraine - CKS - NICE
The practical response is to reconcile all prescribed and over-the-counter acute agents, identify the specific overused class, reduce or eliminate the overused medication, and establish preventive treatment when attack burden meets criteria. acpjournals+2acpjournals2023 U.S. Department of Veterans Affairs and ...ema europa euAssessment report - Vyepti - European Medicines Agencynice org ukHeadaches in over 12s: diagnosis and management Continue diary tracking because a falling acute-medication-day count is as clinically important as a reduction in headache days.
At follow-up, re-evaluate any apparent treatment failure for a changed phenotype, atypical aura, new red flags, and medication overuse before simply adding rescue drugs. This is especially important in late-onset presentations and in older adults, in whom secondary headache and medication adverse effects are more consequential. Nature+1NatureDiagnosis and management of migraine in ten stepsccjmWhen is brain MRI with and without contrast indicated for evaluation of headache? | Cleveland Clinic Journal of medicine
Count days of use, not tablet count, when screening for medication overuse. ema europa eu+2ema europa euAssessment report - Vyepti - European Medicines Agencynice org ukHeadaches in over 12s: diagnosis and managementcks nice org ukScenario: Adults | Management | Migraine - CKS - NICE
Do not substitute opioid rescue for recurrent treatment failure; IV hydromorphone is specifically not recommended for parenteral emergency migraine treatment. PubMedPubMed2025 guideline update to acute treatment of migraine for adults in the emergency department: The American Headache Society evidence assessment of parenteral pharmacotherapies - PubMed
Reassess treatment satisfaction and adherence alongside frequency, severity, duration, and disability because preventive goals extend beyond headache-day reduction. acpjournalsacpjournalsMigraine | Annals of Internal Medicine
References
- Acute Treatments for Episodic Migraine in Adults — jamanetwork.com · jamanetwork.com
- Preventive Medications in Pediatric Migraine — jamanetwork.com · jamanetwork.com
- Advances in migraine prevention — www.thelancet.com · www.thelancet.com
- clinical guideline — www.acpjournals.org · www.acpjournals.org
- Diagnosis and management of migraine in ten steps — www.nature.com · www.nature.com
- Migraine | Annals of Internal Medicine — www.acpjournals.org · www.acpjournals.org
- 2023 U.S. Department of Veterans Affairs and ... — www.acpjournals.org · www.acpjournals.org
- A Systematic Review and Network Meta-analysis for the ... — www.acpjournals.org · www.acpjournals.org
- Characteristics of Patients Referred To A Specialized Headache Clinic | Scientific Reports — www.nature.com · www.nature.com
- Migraine | Nature Reviews Disease Primers — www.nature.com · www.nature.com
- 2025 guideline update to acute treatment of migraine for adults in the emergency department: The American Headache Society evidence assessment of parenteral pharmacotherapies - PubMed — pubmed.ncbi.nlm.nih.gov · pubmed.ncbi.nlm.nih.gov
- Headaches in over 12s: diagnosis and management - NCBI Bookshelf — www.ncbi.nlm.nih.gov · www.ncbi.nlm.nih.gov
- State of the art in the management of migraine—A response to the American College of Physicians migraine preventive treatment guideline — pmc.ncbi.nlm.nih.gov · pmc.ncbi.nlm.nih.gov
- The American Headache Society Consensus Statement — pubmed.ncbi.nlm.nih.gov · pubmed.ncbi.nlm.nih.gov
- Migraine and other headache disorders — www.who.int · www.who.int
- The American Headache Society Position Statement On ... — pubmed.ncbi.nlm.nih.gov · pubmed.ncbi.nlm.nih.gov
- Migraine Prophylaxis - StatPearls - NCBI Bookshelf - NIH — www.ncbi.nlm.nih.gov · www.ncbi.nlm.nih.gov
- Migraine Headache - StatPearls - NCBI Bookshelf — www.ncbi.nlm.nih.gov · www.ncbi.nlm.nih.gov
- Prevalence and burden of migraine in the United States — pubmed.ncbi.nlm.nih.gov · pubmed.ncbi.nlm.nih.gov
- Assessment report - Vyepti - European Medicines Agency — www.ema.europa.eu · www.ema.europa.eu
- When is brain MRI with and without contrast indicated for evaluation of headache? | Cleveland Clinic Journal of medicine — www.ccjm.org · www.ccjm.org
- Headache and Facial Pain: Differential Diagnosis and ... — www.jaci-inpractice.org · www.jaci-inpractice.org
- Headaches in over 12s: diagnosis and management — www.nice.org.uk · www.nice.org.uk
- Scenario: Adults | Management | Migraine - CKS - NICE — cks.nice.org.uk · cks.nice.org.uk