Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/19/2025

Preventive Treatment Options for Migraines Without Aura

Indications for Preventive Therapy

  • The American Academy of Neurology recommends preventive treatment for patients who experience two or more migraine attacks per month with disability lasting 3 or more days 3
  • The American Headache Society suggests considering preventive treatment when patients use acute rescue medications more than twice per week 4
  • Preventive treatment should be considered in patients with failure of or contraindications to acute treatments, according to the American College of Physicians 3
  • The American Academy of Neurology recommends considering preventive treatment in patients with uncommon migraine conditions, such as hemiplegic migraine 4

First-Line Preventive Medications

  • The American Heart Association recommends metoprolol (50-100 mg twice daily or 200 mg modified-release once daily) as a first-line preventive medication for migraine prophylaxis 1
  • The American Academy of Neurology suggests atenolol (25-100 mg twice daily) as a first-line preventive medication for migraine prophylaxis 1
  • The European Society of Cardiology recommends bisoprolol (5-10 mg once daily) as a first-line preventive medication for migraine prophylaxis 1
  • The American Academy of Neurology recommends candesartan (16-32 mg daily) as a first-line preventive medication for migraine prophylaxis 1, 2
  • The American Academy of Neurology suggests topiramate (50-100 mg daily) as a first-line preventive medication for migraine prophylaxis 1, 2

Second-Line Preventive Medications

  • The American Academy of Neurology recommends amitriptyline (10-100 mg at night) as a second-line preventive medication for migraine prophylaxis 1, 3
  • The American Headache Society suggests flunarizine (5-10 mg once daily) as a second-line preventive medication for migraine prophylaxis 1
  • The American Academy of Neurology recommends sodium valproate (600-1,500 mg once daily) as a second-line preventive medication for migraine prophylaxis, but notes it is absolutely contraindicated in women of childbearing potential 1

Third-Line Preventive Medications

  • The American Academy of Neurology recommends CGRP monoclonal antibodies, such as erenumab (70 or 140 mg subcutaneous once monthly), as a third-line preventive medication for migraine prophylaxis 1, 6
  • The American Headache Society suggests onabotulinumtoxinA (155-195 units to 31-39 sites every 12 weeks) as a third-line preventive medication for migraine prophylaxis 1

Implementation of Preventive Therapy

  • The American Academy of Neurology recommends starting with a low dose and increasing slowly until benefits are achieved or limited by side effects 5, 2
  • The American Headache Society suggests allowing an adequate trial period of 2-3 months before determining efficacy 5, 2
  • The American Academy of Neurology recommends monitoring for effectiveness using headache calendars to track attack frequency, severity, and migraine-related disability 1, 2

Non-Pharmacological Options

  • The American Academy of Neurology recommends considering non-pharmacological options, such as neuromodulatory devices, biobehavioral therapy, and acupuncture, as adjuncts to medication or when medications are contraindicated 6