Headache may happen with Mounjaro, though it wasn’t reported in the drug’s initial clinical trials. However, since the drug became available on the market,
Headache causes
It’s unclear whether headache is caused by Mounjaro itself or if it is a symptom of other side effects, such as hypoglycemia or dehydration.
Headache is a symptom of the following side effects:
Hypoglycemia
Mounjaro has a side effect of hypoglycemia, which is when your blood sugar becomes too low. One symptom of low blood sugar is headache. Other symptoms can include:
- dizziness or light-headedness
- blurred vision
- mood changes, such as anxiety or irritability
- sweating
- slurred speech
- hunger
- confusion or drowsiness
- shakiness
- weakness
- rapid heartbeat
- feeling jittery
Dehydration
Mounjaro also has a side effect of dehydration due to fluid loss from diarrhea, nausea, or vomiting. Headache is a symptom of dehydration. Other symptoms may include:
- dry mouth
- lethargy
- weakness
- headache
- dizziness
Medical Perspective“Maintaining adequate hydration prevents headaches because it allows your body to stay balanced and provide blood flow to your brain. Your body and brain require adequate fluids to work properly.”
Learn how to recognize a dehydration headache
Quotes represent the opinions of our medical experts. All content is strictly informational and should not be considered medical advice.
If you experience headache during your Mounjaro treatment, consider the following steps to help you manage them:
- maintain adequate hydration
- rest, if necessary
- use an over-the-counter pain reliever, such as acetaminophen or ibuprofen
- track headache patterns to identify specific triggers
- Safety tip: Do not stop Mounjaro without first talking with your doctor.
Headaches are a possible side effect of Mounjaro, but not everyone gets them. Most headaches can be managed. But if your headaches become bothersome or severe, talk with your doctor about your concerns. They can look for potential causes and recommend ways to manage them.