Emgality Pre-Filled Syringe 100 mg/ml 3'sEmgality is indicated for the preventive treatment of episodic cluster headache in adults. Initial dose: 300 mg, administered as three consecutive injections of 100 mg each using prefilled syringes or pens. Ongoing dose: Continue with 300 mg once monthly for the duration of the cluster period. Storage: Keep refrigerated at 28 C (3646 F) in the original carton to protect from light. Warnings & Precautions: Do not use if you are allergic to Emgality or