The Short Answer Educational content only. Not medical advice. Medication decisions require prescribing clinician evaluation. Discuss risks, benefits, drug interactions, and side effects with your treating provider before starting any medication. Propranolol helps post-concussion migraine through beta-adrenergic blockade, cortical hyperexcitability reduction, and autonomic regulation (Silverberg et al., 2020). Propranolol is FDA-approved for migraine prophylaxis and commonly used off-label for post-traumatic migraine following concussion. Typical migraine prevention doses 40-160 mg daily divided or extended-release. Propranolol also addresses concussion-related tachycardia, anxiety, tremor, and autonomic hyperarousal common in PCS. Cautions include exercise intolerance affecting Buffalo Concussion Treadmill Test (BCTT) and Buffalo Protocol subthreshold aerobic exercise. Contraindications include asthma, severe bradycardia, and heart block. Prescribing neurologist or concussion specialist evaluation required. Propranolol reduces post-concussion migraine frequency. FDA-approved for migraine. Also addresses tachycardia and anxiety. Multi-symptom benefit. Cautions with subthreshold aerobic exercise. BCTT and Buffalo Protocol cautions. How Propranolol Works for Post-Concussion Migraine Non-selective beta-adrenergic blockade. Non-selective beta-blockade. Beta-1 and beta-2 receptor blockade. Beta-1 and beta-2 blockade. Central cortical hyperexcitability reduction. Central cortical hyperexcitability reduction. Cortical spreading depression suppression. Cortical spreading depression suppression. Sympathetic nervous system dampening. Sympathetic dampening. Vascular tone modulation. Vascular tone modulation. Serotonergic modulation. Serotonergic modulation. 5-HT1A partial agonism. 5-HT1A partial agonism. Autonomic nervous system regulation. Autonomic regulation. Evidence for Propranolol in Post-Traumatic Migraine FDA-approved for migraine prophylaxis. FDA-approved migraine prevention. American Headache Society Level A evidence for migraine. AHS Level A evidence. Silverberg et al. (2020) guidelines mention beta-blockers. Silverberg guidelines beta-blockers. Reduces migraine frequency 50% in responders. Reduces frequency 50% responders. Number needed to treat approximately 3-4. NNT approximately 3-4. Response usually within 4-8 weeks. Response within 4-8 weeks. Post-traumatic migraine evidence extrapolated from primary migraine. Post-traumatic migraine evidence extrapolated. Additional Benefits in PCS Concussion-related tachycardia. Concussion-related tachycardia. Post-concussion POTS symptoms. Post-concussion POTS symptoms. Anxiety and panic symptoms. Anxiety and panic symptoms. Physical symptoms of anxiety. Physical symptoms of anxiety. Tremor. Tremor. Performance anxiety. Performance anxiety. Autonomic hyperarousal. Autonomic hyperarousal. Situational hypertension. Situational hypertension. Typical Dosing for PCS Migraine Immediate-release starting 20-40 mg twice daily. IR starting 20-40 mg BID. Extended-release starting 60-80 mg daily. ER starting 60-80 mg daily. Target dose 80-160 mg daily. Target dose 80-160 mg daily. Maximum migraine prevention 240 mg daily. Max migraine 240 mg daily. Titration every 1-2 weeks. Titration every 1-2 weeks. Adequate trial 8-12 weeks. Adequate trial 8-12 weeks. Common Side Effects Fatigue. Fatigue. Exercise intolerance. Exercise intolerance. Bradycardia. Bradycardia. Hypotension. Hypotension. Orthostatic hypotension. Orthostatic hypotension. Cold extremities. Cold extremities. Dizziness. Dizziness. Depression exacerbation. Depression exacerbation. Sleep disturbance and vivid dreams. Sleep disturbance and vivid dreams. Erectile dysfunction. Erectile dysfunction. Weight gain. Weight gain. Bronchospasm risk. Bronchospasm risk. Contraindications Asthma. Asthma contraindication. Severe COPD. Severe COPD. Severe bradycardia. Severe bradycardia. Second or third degree heart block. Second or third degree heart block. Sick sinus syndrome without pacemaker. Sick sinus syndrome without pacemaker. Cardiogenic shock. Cardiogenic shock. Severe hypotension. Severe hypotension. Uncontrolled heart failure. Uncontrolled heart failure. Cautions in Concussion Recovery Interferes with Buffalo Concussion Treadmill Test. Interferes with BCTT. Affects sub-symptom threshold heart rate identification. Affects sub-symptom threshold HR. Timing of BCTT before starting propranolol. Timing of BCTT before starting. Discuss subthreshold aerobic exercise protocols with prescriber. Discuss subthreshold aerobic exercise. Depression risk assessment before starting. Depression risk assessment. Diabetes masking hypoglycemia symptoms. Diabetes masking hypoglycemia. Drug Interactions Calcium channel blocker combination. Calcium channel blocker combination. Digoxin combination. Digoxin combination. Amiodarone combination. Amiodarone combination. NSAID interaction reduces effect. NSAID interaction reduces effect. SSRI increases propranolol levels. SSRI increases propranolol levels. Insulin masking hypoglycemia. Insulin masking hypoglycemia. Monitoring During Treatment Heart rate monitoring. Heart rate monitoring. Blood pressure monitoring. Blood pressure monitoring. Exercise tolerance assessment. Exercise tolerance assessment. Headache diary. Headache diary. Mood monitoring. Mood monitoring. Sleep quality monitoring. Sleep quality monitoring. Depression screening. Depression screening. Discontinuation Gradual taper over 1-2 weeks. Gradual taper over 1-2 weeks. Abrupt discontinuation risks rebound tachycardia. Abrupt rebound tachycardia. Rebound hypertension risk. Rebound hypertension risk. Rebound migraine possible. Rebound migraine possible. Taper under prescriber guidance. Taper under prescriber guidance. Alternatives if Propranolol Not Tolerated Metoprolol (cardioselective beta-blocker). Metoprolol cardioselective. Timolol (FDA-approved for migraine). Timolol FDA-approved migraine. Amitriptyline. Amitriptyline. Topiramate. Topiramate. Verapamil. Verapamil. Candesartan. Candesartan. CGRP antagonists. CGRP antagonists. Supporting Mobility Routine These exercises complement propranolol through cervical mobility and nervous system regulation. JME 155 Diaphragmatic breathing supports vagal tone and parasympathetic regulation during concussion recovery. 10 breaths every 60-90 minutes. JME 14 Chin tucks reduce upper cervical tension common in concussion injury. 10 repetitions with 5-second holds. JME 1 Cervical rotation supports cerebral blood flow and nervous system regulation. 10 repetitions each direction. JME 150 Thoracic rotation restores breathing depth shallow during concussion recovery. 8 repetitions per direction. Start your 3-day free trial for joint-specific mobility programs that support nervous system regulation through concussion recovery. Common Mistakes About Propranolol for PCS Starting before completing BCTT assessment. BCTT assessment first. Not addressing exercise intolerance concern. Address exercise intolerance concern. Abrupt discontinuation. Abrupt discontinuation risks. Not screening depression risk. Depression screening essential. Using in undiagnosed asthma. Asthma screening essential. How long does propranolol take to work for post-concussion migraine? Propranolol typically takes 4-8 weeks to reach full preventive effect for post-concussion migraine. Tachycardia and anxiety benefit often within days. Migraine frequency reduction gradual over 4-8 weeks. Adequate trial 8-12 weeks before determining effectiveness. Titration from starting dose to target dose over several weeks. Does propranolol interfere with concussion exercise protocols? Yes, propranolol interferes with Buffalo Concussion Treadmill Test (BCTT) and sub-symptom threshold heart rate identification by blocking heart rate response to exercise. Ideally complete BCTT before starting propranolol. If already on propranolol, discuss modified protocols with concussion specialist. Rating of perceived exertion (RPE) may replace heart rate as exercise threshold marker. Can propranolol help concussion-related anxiety and POTS? Yes, propranolol addresses physical anxiety symptoms including tachycardia, tremor, and situational hypertension. Non-selective beta blockade reduces sympathetic hyperarousal common in PCS. Propranolol commonly used for POTS management. Multi-symptom benefit makes propranolol useful when migraine, anxiety, and autonomic symptoms co-exist. What is the difference between propranolol and metoprolol for PCS? Propranolol is non-selective beta blocker with FDA approval for migraine. Metoprolol is cardioselective (beta-1 selective) with less bronchospasm risk. Propranolol crosses blood-brain barrier better, contributing to migraine and anxiety benefits. Metoprolol may be preferred in patients with asthma history or bronchospasm risk. Both effective for migraine prevention. Can I stop propranolol suddenly if I do not tolerate it? No. Propranolol requires gradual taper over 1-2 weeks to avoid rebound tachycardia, rebound hypertension, and rebound migraine. Abrupt discontinuation can worsen concussion symptoms and trigger cardiovascular events. Discuss discontinuation with prescriber. Taper schedule based on current dose and duration of treatment. References Patricios, J. S., et al. (2023). Consensus statement on concussion in sport: the 6th International Conference on Concussion in Sport, Amsterdam, October 2022. British Journal of Sports Medicine, 57(11), 695-711. PubMed Silverberg, N. D., et al. (2020). Management of concussion and mild traumatic brain injury: a synthesis of practice guidelines. Archives of Physical Medicine and Rehabilitation, 101(2), 382-393. PubMed