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.
Emgality (galcanezumab) is a type of monoclonal antibody. It works as a calcitonin gene-related peptide (CGRP) antagonist. It blocks CGRP, a protein in the brain that plays a role in causing pain from migraine attacks and cluster headaches.
By blocking CGRP, Emgality (galcanezumab) can help prevent migraines. It can also help ease pain from cluster headaches.
The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Note: These other side effects were reported from a clinical study.
Contact your healthcare provider immediately if you experience any of the following.
Side effects that you should report to your care team as soon as possible:
Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):
How to store Emgality (galcanezumab):
How to prepare for your Emgality (galcanezumab) injection:
How to inject Emgality (galcanezumab):
Emgality (galcanezumab) injections can sometimes hurt. It can happen if the medication irritates your skin or the area under your skin. For most people, the pain is usually mild or moderate and goes away in a day or two. You can try putting a warm or cold pack on the spot to help ease the pain. You can also take over-the-counter pain relievers. To help lower the risk of painful injections, let Emgality (galcanezumab) warm up to room temperature for 30 minutes before injecting. Also, try to give the injection in a different spot each time. If your Emgality (galcanezumab) injections keep hurting, talk to your care team. They can check to make sure that you're injecting the medication properly.
It's not very common to gain weight while taking Emgality (galcanezumab), but it could happen. In a clinical study, a small number of people who took the medication said they gained weight. If you notice your weight changing while taking Emgality (galcanezumab), talk to your primary care provider about it.
For preventing migraines, some people can start having fewer migraines each month after 1 to 2 months of taking Emgality (galcanezumab). In studies, people who took the medication had about 4 to 5 fewer migraines each month than they used to. If you have episodic cluster headaches, you might start feeling better within the first 3 weeks of taking Emgality (galcanezumab). On average, people had about 9 fewer cluster headache attacks over these first few weeks. Ask your prescriber if you have more questions about how long it's taking Emgality (galcanezumab) to work for you.
You can keep Emgality (galcanezumab) in its box outside the fridge for up to 7 days. But make sure it doesn't get hotter than 86ºF. Once you take Emgality (galcanezumab) out of the fridge, don't put it back in. If you leave the medication out for more than a week or if it gets hotter than 86ºF, you need to throw it away. Get a new syringe or pen to use instead.
If your migraines or headaches are well controlled for 6 to 12 months with Emgality (galcanezumab), your prescriber might decide to try to stop the medication. A small study looked at what happened to people when they stopped after 8 to 12 months of treatment. Some of these people started having more headaches each month. Some also said their quality of life got worse. This included having to avoid doing certain things or worrying a lot about when their next migraine would happen. If you want to stop Emgality (galcanezumab), talk to your prescriber. They can tell you what to do next and what you might expect.
No. Emgality (galcanezumab) is only approved as a once-monthly injection. Use the medication as directed by your prescriber. If you're not sure how to take Emgality (galcanezumab), talk to your prescriber. Also ask them if you need more help managing your headaches.
Talk to your prescriber about the risks and benefits of taking Emgality (galcanezumab) while pregnant. We don't have enough information to know if it's safe to take during pregnancy. If you get pregnant while taking Emgality (galcanezumab), let your prescriber know right away. Your prescriber can sign you up into the manufacturer's pregnancy registry. This program helps researchers learn more about how safe Emgality (galcanezumab) is for people who are pregnant and their baby.
Emgality (galcanezumab) and Aimovig (erenumab) are both migraine prevention medications for adults. They're both injected under the skin once a month. But Emgality can also help with a different kind of headache called episodic cluster headaches. Talk to your prescriber to learn more about how these medications differ.
Emgality (galcanezumab) can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.
Emgality (galcanezumab) can cause serious allergic reactions, such as anaphylaxis. Symptoms can include hives (patches of red, raised skin that might feel hot or itchy) or rash. It can also look like swelling of the face and around the eyes, swollen throat, trouble breathing, wheezing, and trouble swallowing.
Watch for any allergic reactions after injecting Emgality (galcanezumab), even after a few days. Get medical help right away if this happens.
Some people developed high blood pressure after using Emgality (galcanezumab). This can happen any time during treatment. But most people noticed it within a week of starting the medication.
Ask your healthcare professional how often you should check your blood pressure at home. Tell your primary care provider if it stays higher than usual. They might recommend starting blood pressure medication to help.
Some people who've taken Emgality (galcanezumab) have had Raynaud's phenomenon, which is a problem with blood flow to the fingers and toes. If you already have Raynaud's, this medication could make it worse.
This blood flow problem can lead to color changes, pain, and numbness in your fingers and toes. Some people might need a trip to the hospital for serious pain.
Get medical help right away if you notice any signs of Raynaud's phenomenon while taking Emgality (galcanezumab). Look out for signs like numb fingers or toes, skin color changing from pale to blue to red, or pain in these areas. Your care team can work with you to help you manage this problem.
Migraine prevention: The typical dose is 240 mg (two injections of 120 mg each, one right after the other) once. Then a month later, the usual dose changes to 120 mg once a month. Inject the medication under the skin.
Treatment of episodic cluster headaches: Start the medication at the beginning of your cluster headache cycle. The typical dose is 300 mg (three injections of 100 mg each, one right after the other) once a month. Inject the medication under the skin. Stop taking the medication when your cluster cycle ends.