Migraine
Adult: Prophylaxis: In patients who have at least 4 migraine days/month: Loading dose: 240 mg given as 2 inj of 120 mg. Maintenance: 120 mg once monthly starting 1 month after loading dose.
Subcutaneous
Episodic cluster headache
Adult: 300 mg given as 3 inj of 100 mg at the onset of cluster period, then once monthly until the end of cluster period.