When do you consider intramuscular indomethacin for the assessment of trigeminal autonomic cephalalgias?

Indomethacin as a preventive treatment should only be considered for paroxysmal hemicrania and hemicrania continua. Both diagnoses are made based on the history. The diagnosis of paroxysmal hemicrania is based on the attack pattern: unilateral headaches lasting 10-30 minutes and occurring multiple t...