A recent preliminary observational study found that people living with chronic migraine who took GLP-1 drugs for other conditions had fewer emergency department visits and used fewer migraine medications.

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Researchers found that, over the following year, people who started these drugs were about 10 percent less likely to visit the emergency department. They were also 14 percent less likely to be hospitalized for any reason than people taking topiramate, a common migraine preventive medication.

Importantly, this research shows only an association, not cause and effect.

Still, these findings add to growing research suggesting that drugs already used for other conditions may one day help treat migraine.

What Are GLP-1 Drugs?

GLP-1 receptor agonists (often called GLP-1 drugs) are medications that mimic a natural hormone involved in blood sugar control and appetite regulation.

They are currently approved to treat conditions such as type 2 diabetes and obesity. Some well-known examples include semaglutide, liraglutide, and dulaglutide.

Researchers are also studying GLP-1 drugs for a growing list of other conditions, including heart disease, kidney disease, arthritis, and neurological (nerve- and brain-related) conditions.

Part of the reason for this growing interest is that GLP-1 drugs may do more than lower blood sugar. They may also reduce inflammation and affect how blood vessels work.

A Closer Look at the Study

The new research, presented at the American Academy of Neurology’s 2026 annual meeting, looked at health records from nearly 22,000 adults with chronic migraine.

About half started a GLP-1 drug for another condition, while the other half started topiramate, a commonly used preventive migraine medication.

Compared with people taking topiramate, those taking GLP-1 drugs were:

• Less likely to visit the emergency department (23.7 percent of people taking GLP-1 drugs vs. 26.4 percent of people taking topiramate) within a year
• About 13 percent less likely to need certain migraine treatments, such as triptans or nerve block procedures
• Less likely to start additional preventive medications, including calcitonin gene-related peptide (CGRP) inhibitors and antidepressants used for migraine

Together, these findings suggest that people taking GLP-1 drugs may have had fewer migraine-related problems.

How Might GLP-1 Drugs Affect Migraine Symptoms?

Researchers are still working to understand the connection. Early evidence suggests a few possible explanations, including:

• Anti-inflammatory effects — Chronic migraine is linked to inflammation, and GLP-1 drugs may help reduce it.
• Neurovascular effects — These drugs may influence how the brain and blood vessels interact, which plays a role in migraine.

That said, this study was observational. It cannot prove that GLP-1 drugs directly caused the improvements.

Other factors, such as lifestyle changes or weight changes, may have played a role.

GLP-1 Side Effects

Like all medications, GLP-1 drugs can cause side effects. Some of the most commonly reported include:

• Loss of appetite
• Nausea
• Vomiting
• Diarrhea

In some cases, there may be more serious side effects.

GLP-1 drugs are prescription medications and should be taken under the guidance of a healthcare provider.

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On MyMigraineTeam, people share their experiences with migraine, get advice, and find support from others who understand.

Have you tried a GLP-1 drug while living with migraine? Let others know in the comments below.