First‑Line Management of Adult Headache (Evidence‑Based Recommendations)

1. Initial Pharmacologic Options

• For adults with headache and no significant comorbidities, begin treatment with an NSA ID (ibuprofen 400–800 mg, naproxen 275–550 mg, or aspirin 650–1000 mg) or acetaminophen 1000 mg as first‑line therapy【1】【2】【3】.
• NSAIDs are the preferred first‑line agents for mild‑to‑moderate migraine or tension‑type headache【1】【2】.

2. NSAID Dosing Details

• Ibuprofen: 400–800 mg every 6 h (maximum 2.4 g/day)【4】.
• Aspirin: 650–1000 mg every 4–6 h (maximum 4 g/day)【4】.

3. Acetaminophen Use

• Acetaminophen 1000 mg is an alternative when NSAIDs are contraindicated or not tolerated【1】【2】.
• As monotherapy, acetaminophen is less effective than NSAIDs for migraine but appropriate for tension‑type headache【4】.

4. Combination Analgesics (Analgesic + Caffeine)

• Fixed‑dose combinations of aspirin + acetaminophen + caffeine are highly effective and cost‑effective for mild‑to‑moderate attacks【1】【2】【4】.

5. Triptan Strategies for Moderate‑to‑Severe Headache or NSAID Failure

• Add a triptan to an adequate‑dose NSAID regimen when NSAID monotherapy fails【1】【2】【3】【5】.
• Combination therapy (triptan + NSAID) is superior to either agent alone【1】【5】 (strong evidence).
• If NSAIDs are contraindicated, combine a triptan with acetaminophen【1】【2】【3】.

5.1 Triptan Selection

• All triptans (sumatriptan, rizatriptan, zolmitriptan, naratriptan, almotriptan, eletriptan, frovatriptan) have strong supporting evidence【1】【2】.
• Choice should be guided by patient preference for route of administration and cost【1】【2】.
• Failure of one triptan does not preclude response to another within the class【1】【2】.

6. Timing of Treatment

• Initiate therapy as early as possible after headache onset to maximize efficacy【1】【3】.
• Early combination therapy (triptan + NSAID or acetaminophen) yields better outcomes than sequential monotherapy【1】【3】.

7. Special Situations

7.1 Headache with Nausea/Vomiting

• Use non‑oral routes (e.g., subcutaneous sumatriptan, nasal spray triptans) when oral intake is compromised【1】【2】.
• Add an anti‑emetic (metoclopramide or prochlorperazine) for nausea control and synergistic analgesia【4】.

7.2 Refractory Cases

• CGRP antagonists (rimegepant, ubrogepant, zavegepant) are reasonable third‑line options after failure of triptan + NSAID combination【1】【2】【3】.
• Lasmiditan may be considered when all other acute treatments have failed【1】【2】【3】.

8. Medications to Avoid

• Opioids (meperidine, butorphanol) and butalbital‑containing analgesics should never be used for routine headache treatment【1】【2】【4】.
• These agents have poor effectiveness, high dependency risk, and can cause rebound headaches【4】.

9. Medication‑Overuse Headache Prevention

• Limit NSAID use to < 15 days/month and triptan use to < 10 days/month to prevent medication‑overuse headache【1】【2】【3】.
• Patients requiring acute medication more frequently should be evaluated for preventive therapy【1】【3】.

10. Common Pitfalls

10.1 Inadequate Dosing

• Ensure patients receive full therapeutic doses (e.g., ibuprofen 400–800 mg, not 200 mg) before labeling treatment as failed【1】【2】.

10.2 Delayed Administration

• Delayed treatment reduces efficacy; emphasize early dosing at headache onset【1】【3】.

10.3 Acetaminophen Monotherapy

• Acetaminophen alone is insufficient for most migraines; reserve for tension‑type headache or combine with other agents【4】.

10.4 Cost Considerations

• When equally effective options exist, prescribe the less costly recommended medication【1】【3】.

Emergency Department Management of Acute Headache

Initial Assessment – Red‑Flag Evaluation

• In adult patients presenting to the ED, any abnormal neurologic examination finding, sudden onset of maximal intensity within 1 hour, headache that worsens with Valsalva, awakens the patient from sleep, new‑onset headache in older adults, or a progressively worsening pattern should prompt immediate neuroimaging to exclude life‑threatening secondary causes. 6

First‑Line Treatment of Mild‑to‑Moderate Migraine

• NSAIDs are recommended as the first‑line acute therapy for mild‑to‑moderate migraine attacks. Typical options include ibuprofen 400–800 mg, naproxen sodium 275–550 mg (maximum initial dose 825 mg), ketorolac 60 mg IM (rapid onset, 6‑hour duration), aspirin 650–1000 mg, or a fixed‑dose combination of aspirin + acetaminophen + caffeine. Early administration during the attack improves efficacy. Evidence level not specified. [7][8][9][10]

Combination Therapy for Moderate‑to‑Severe Migraine

• For moderate‑to‑severe attacks, combination therapy is superior to monotherapy. The preferred regimen is a triptan plus an NSAID; if NSAIDs are contraindicated, a triptan plus acetaminophen may be used. 8
• All approved triptans (sumatriptan, rizatriptan, zolmitriptan, naratriptan, almotriptan, eletriptan, frovatriptan) have good supporting evidence. [7][8]
• Newer CGRP receptor antagonists (gepants such as rimegepant, ubrogepant, zavegepant) are reasonable options for patients who fail the triptan + NSAID combination. 8

Management of Migraine with Nausea/Vomiting

• Non‑oral routes (e.g., subcutaneous sumatriptan, nasal spray formulations) should be employed when oral intake is limited. [7][11]
• Antiemetics are essential to treat disabling nausea, not merely vomiting. Metoclopramide improves gastric motility and provides synergistic analgesia; prochlorperazine can directly relieve headache pain. [10][7]11

Acute Treatment of Tension‑Type Headache

• Ibuprofen 400 mg or acetaminophen 1000 mg are effective first‑line options for acute tension‑type headache. 12

Opioid Avoidance

• Opioids (e.g., meperidine, butorphanol) should be avoided in acute migraine because they have poor effectiveness, high risk of dependency, rebound headache, and loss of efficacy with chronic use. Butalbital‑containing analgesics should also be limited and closely monitored. [8][9]10

Medication‑Overuse Headache (MOH) Monitoring

• NSAID use on ≥ 15 days per month and triptan use on ≥ 10 days per month are thresholds that trigger medication‑overuse headache. Overuse of ergotamine, other analgesics, or triptans can cause rebound headaches. [8][6]13

Indications for Referral to Preventive Therapy

• Patients should be referred for preventive headache management when they experience ≥ 2 migraine attacks per month causing disability lasting ≥ 3 days, have contraindications or failure of acute treatments, use abortive medication > 2 times per week, or have uncommon migraine subtypes (e.g., hemiplegic migraine, prolonged aura, migrainous infarction). [7][11]

Patient Education and Discharge Planning

• Education should cover lifestyle modifications (adequate hydration, regular meals, consistent sleep, aerobic exercise, stress management), identification of modifiable triggers, realistic expectations about treatment benefits and harms, and the risk of medication‑overuse headache. [8][7]11