Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Galcanezumab (Emgality) and rimegepant (Nurtec ODT) are both medications used to prevent migraines in adults. However, they belong to different medication classes and have distinct uses and forms. Galcanezumab is a monoclonal antibody that is also used to treat episodic cluster headaches, while rimegepant is a calcitonin gene-related peptide (CGRP) receptor blocker that can also treat migraines with or without aura. Galcanezumab is administered as a subcutaneous injection, typically once a month, whereas rimegepant is taken orally as a dissolvable tablet every other day for prevention or as needed for treatment. Both are only available as brand-name medications. Common side effects of galcanezumab include injection site reactions and sore throat, while rimegepant may cause nausea and stomach pain. Additionally, rimegepant interacts with grapefruit, which can increase the risk of side effects, whereas galcanezumab does not have this interaction.
Emgality (galcanezumab)
Nurtec odt (rimegepant)
Emgality (galcanezumab)
Nurtec odt (rimegepant)
Summary of Emgality vs. Nurtec
Summary for CGRP antagonist
Prescription only
Emgality (galcanezumab or galcanezumab-gnlm) is an injectable medication that can help prevent migraine attacks in adults. It can also help treat cluster headaches in adults. This medication is a monoclonal antibody that works as a CGRP antagonist. It blocks the CGRP protein in the brain that can cause migraine and headache pain. Emgality (galcanezumab) comes as a prefilled pen and syringe. You inject one dose of the medication under the skin monthly. Some common side effects include pain, itching, and redness at the injection site.
Summary for Calcitonin gene-related peptide (CGRP) receptor antagonist
Prescription only
Nurtec ODT (rimegepant) is a type of migraine medication called a calcitonin gene-related peptide (CGRP) receptor antagonist. It helps treat migraine attacks with or without aura in adults. It can also help prevent migraines from happening in the long run. This medication is an orally disintegrating tablet (ODT). You put it on or under the tongue and let it dissolve. The dosage is 1 tablet each time. But how often you take the medication depends on if you're taking it to prevent or treat migraines. Side effects include nausea and stomach pain. Nurtec ODT (rimegepant) is a brand-name medication; there's no generic version yet.