
For adults with episodic cluster headache,
Emgality 300 mg is the first and only medication approved for the treatment of episodic cluster headache that reduces the frequency of cluster headache attacks
People in a study had an average of 18 cluster headache attacks each week during their cluster cycle.
Over the first 3 weeks of taking Emgality, they had an average of 9 fewer attacks each week vs 5 fewer weekly attacks for those taking placebo.
Select Safety Information
Do not use Emgality if you are allergic to galcanezumab-gnlm or any of the ingredients in Emgality.
In a study, people taking Emgality had:

Weekly cluster headache attacks were cut in half or more for 71% of people 3 weeks after taking their first dose of Emgality vs 53% for placebo.
Ask your doctor if Emgality 300 mg could be right for you to help reduce the frequency of your cluster headache attacks.
Select Safety Information
Emgality may cause allergic reactions, such as itching, rash, hives, and trouble breathing. Allergic reactions can happen days after using Emgality. Call your healthcare provider or get emergency medical help right away if you have any of the following symptoms, which may be part of an allergic reaction:
- swelling of your face, mouth, tongue, or throat
- trouble breathing
How Emgality works
Emgality was specifically developed to bind to CGRP, a substance in the brain that may play a key role in episodic cluster headache, and block its binding to the receptor.

CGRP=calcitonin gene-related peptide.
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Select Safety Information
Emgality can cause high blood pressure or worsening of high blood pressure. Contact your healthcare provider if you have an increase in blood pressure.
A type of circulation problem called Raynaud’s phenomenon can worsen or happen after receiving Emgality. Raynaud’s phenomenon can lead to your fingers or toes feeling numb, cool, or painful, or changing color from pale, to blue, to red. Contact your healthcare provider if these symptoms occur.