What is the recommended dosage of a headache cocktail, including sumatriptan (Selective Serotonin Receptor Agonist), metoclopramide (AntiEmetic), and naproxen (Non-Steroidal Anti-Inflammatory Drug)?

Headache Cocktail Dosing for Acute Migraine

For moderate to severe migraine, administer sumatriptan 50-100 mg orally plus naproxen 500-550 mg orally plus metoclopramide 10 mg orally or IV as the standard headache cocktail. 1, 2

Specific Component Dosages

Sumatriptan Dosing

• Oral: 50-100 mg at onset of headache; may repeat after 2 hours if needed 2
• Maximum daily dose: 200 mg per 24 hours 2
• Subcutaneous (for severe cases with vomiting): 6 mg; may repeat once after 1 hour 2
• Maximum subcutaneous dose: 12 mg per 24 hours 2
• Intranasal (alternative for nausea/vomiting): 5-20 mg in one nostril; may repeat after 2 hours 2
• Maximum intranasal dose: 40 mg per 24 hours 2

Naproxen Sodium Dosing

• Initial dose: 500-550 mg (or up to 825 mg for severe attacks) 2
• May repeat: Every 6-12 hours as needed 2
• Maximum daily dose: 1,500 mg per day 2

Metoclopramide Dosing

• Oral or IV: 10 mg 2, 3
• Primary role: Treats nausea and provides synergistic analgesia 2
• Can be used as monotherapy for acute migraine when other agents are contraindicated 4

Treatment Algorithm by Severity

For Mild to Moderate Migraine

• Start with naproxen 500-550 mg alone 1
• If inadequate response after 2-3 attacks, escalate to combination therapy 1

For Moderate to Severe Migraine

• Use full triple combination immediately: sumatriptan + naproxen + metoclopramide 1, 3
• Treat as early as possible when pain is still mild for best outcomes (NNT 3.1 vs 4.9 when treating severe pain) 5, 6

For Severe Migraine with Vomiting

• Switch to non-oral routes: 4
  • Sumatriptan 6 mg subcutaneous 2
  • Ketorolac 60 mg IM (alternative NSAID) 2, 3
  • Metoclopramide 10 mg IV 3
  • Prochlorperazine 10 mg IV (alternative antiemetic) 3

Critical Timing and Frequency Considerations

Treat early when pain is mild - this significantly improves pain-free response at 2 hours (50% vs 28% when treating severe pain) 5, 6

Limit acute treatment to no more than 2 days per week to prevent medication-overuse headache 4, 3

Important Contraindications

Sumatriptan Contraindications 2

• Coronary artery disease, previous MI, or Prinzmetal angina
• Uncontrolled hypertension
• Use within 24 hours of ergotamine or another triptan
• Concurrent MAOI use
• Hemiplegic or basilar migraine
• Pregnancy

Naproxen Contraindications 2

• Aspirin/NSAID-induced asthma
• Active GI bleeding
• Severe renal impairment

Metoclopramide Contraindications 3

• Pheochromocytoma
• Seizure disorder
• GI bleeding or obstruction

Expected Response and Recurrence

• Pain-free at 2 hours: 50% when treating mild pain, 28% when treating moderate-severe pain 5, 6
• Headache recurrence: Occurs in approximately 40% of patients within 24 hours 7, 8
• Recurrence management: May repeat sumatriptan dose after 2 hours (oral) or 1 hour (subcutaneous) 2

Common Pitfalls to Avoid

• Don't use acetaminophen alone - it is ineffective for migraine 4
• Don't use opioids or butalbital - they cause dependency and medication-overuse headache 1, 3
• Don't wait until pain is severe - early treatment when pain is mild doubles the pain-free response rate 5, 6
• Don't exceed frequency limits - using acute medications more than 2 days/week leads to medication-overuse headache 4, 3

Alternative IV Cocktail for Emergency Settings

When oral route is not feasible: 3

• Ketorolac 30-60 mg IV (use 30 mg if age ≥65 or renal impairment)
• Metoclopramide 10 mg IV or prochlorperazine 10 mg IV
• Avoid adding corticosteroids - limited evidence for acute migraine (reserved for status migrainosus) 3