GLP-1 Night Sweats: What Is Known and When to Call
In this guide
This article is for information only and is not medical advice. Talk to your prescriber or a qualified professional.
GLP-1 night sweats are not a listed side effect. We checked the current US prescribing information for Wegovy, Zepbound, Ozempic and Mounjaro, and none of them lists night sweats or excessive sweating in their adverse reaction sections. Sweating does appear in all four, but as a possible sign of low blood sugar, a risk the labels tie to using these medicines with insulin or a sulfonylurea. Beyond that, we did not find good clinical evidence on night sweats with GLP-1 medicines. Sweating at night has many possible causes, so if it is new and keeps happening, it is worth raising with your prescriber.
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Key points
- Night sweats are not in the adverse reaction lists of the four labels we checked.
- Sweating is listed as a sign of low blood sugar, which is more likely with insulin or a sulfonylurea.
- NIDDK says low blood sugar during sleep can cause sweating that dampens pajamas or sheets.
- Sweating with fever, weight loss or chest pain needs a call to your provider.
For the symptoms the labels do list, see the GLP-1 side effects timeline.
What the labels say, and what they do not
Here is what we found in each current label on DailyMed:
| Label | Night sweats in adverse reactions | Sweating mentioned |
|---|---|---|
| Wegovy | Not listed | As a sign of low blood sugar |
| Zepbound | Not listed | As a sign of low blood sugar |
| Ozempic | Not listed | As a sign of low blood sugar |
| Mounjaro | Not listed | As a sign of low blood sugar |
“Not listed” does not prove a medicine never causes a symptom. It means the symptom did not show up in the trial data or postmarketing reports that the label summarizes. Online stories about GLP-1 night sweats are real experiences, but they cannot tell you whether the medicine, something else, or a mix is behind them. We could not find a clinical trial that measured night sweats as an outcome, so this page does not guess at a rate or a cause.
The low blood sugar link (insulin or a sulfonylurea)
The labels say these medicines lower blood sugar, and that the risk of low blood sugar is higher when they are used with insulin or a sulfonylurea. The Wegovy label reports low blood sugar in 6.2% of adults with type 2 diabetes on the 2.4 mg injection versus 2.5% on placebo, and says the risk was higher with a sulfonylurea.
According to the patient information for all four medicines, signs of low blood sugar may include sweating, shakiness, dizziness, hunger, headache, confusion, a fast heartbeat and feeling jittery.
Low blood sugar can also happen while you sleep. The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) lists these signs of low blood glucose during sleep:
- Crying out or having nightmares.
- Sweating enough to make your pajamas or sheets damp.
- Feeling tired, irritable or confused after waking up.
If you take insulin or a sulfonylurea and you wake up sweaty, tell your prescriber. Ask how to recognize and treat low blood sugar and whether you should check your levels. Your prescriber and pharmacist set your plan, including any change to your other diabetes medicines.
Other common reasons people sweat at night
MedlinePlus lists many conditions that can cause extra sweating, including menopause, anxiety, infections, an overactive thyroid, certain medicines and blood sugar problems. Some everyday factors are also worth a look: a warm bedroom, heavy bedding, alcohol in the evening and a recent illness with fever.
Write down what you notice instead of guessing. A few nights of notes can show whether the sweating follows your shot day, a dose increase, a late drink or something else entirely.
When to call a clinician or get care
When to call: MedlinePlus says to contact your provider about sweating that is prolonged, excessive and unexplained, that occurs mostly during sleep, or that comes with fever, weight loss, chest pain, shortness of breath or a rapid, pounding heartbeat.
From the GLP-1 labels and patient information:
- Signs of low blood sugar if you take insulin or a sulfonylurea, such as sweating with shakiness, confusion or a fast heartbeat. Severe low blood sugar is an emergency.
- Signs of a serious allergic reaction: swelling of the face, lips, tongue or throat, problems breathing or swallowing, severe rash or itching, fainting or feeling dizzy, or a very rapid heartbeat. Stop the medicine and get medical help right away.
- Fever with pain in your upper stomach, yellowing of the skin or eyes, or clay-colored stools, which the labels list as possible gallbladder symptoms.
- Severe stomach pain that will not go away, with or without vomiting, sometimes spreading to the back. The labels warn about pancreatitis.
- Any side effect that bothers you or does not go away. The patient information says to talk to your healthcare provider about it.
This list is not complete. In an emergency, call 911 or your local emergency number.
Frequently asked questions
Do GLP-1 medicines cause night sweats?
Night sweats are not listed as a side effect in the current Wegovy, Zepbound, Ozempic or Mounjaro labels. Sweating is listed as a sign of low blood sugar. The evidence on night sweats specifically is thin, so talk to your prescriber if it is new for you.
Can low blood sugar cause night sweats?
Yes. NIDDK says low blood glucose during sleep can cause sweating that makes pajamas or sheets damp, along with nightmares or confusion on waking. The GLP-1 labels say the risk of low blood sugar is higher with insulin or a sulfonylurea.
Are night sweats on a GLP-1 dangerous?
It depends on the cause, and an article cannot sort that out. MedlinePlus advises contacting your provider about sweating that happens mostly during sleep or comes with fever, weight loss or chest pain.
Should I stop my medicine if I have night sweats?
Do not stop or skip a dose on your own. Ask your prescriber or pharmacist and read the official patient information for your medicine.
Notes worth bringing to your visit
For a week, jot down each night you wake up sweaty, how bad it was, your shot date, any dose change, and what you ate or drank in the evening. The free Dosinha shot log and side-effect check-in keep those notes next to your shot dates, so you can notice patterns and share them with your prescriber. They do not treat sweating. Look around Dosinha. Related: feeling off after a GLP-1 dose, GLP-1 headaches and GLP-1 and anxiety.
Sources
- Novo Nordisk. Wegovy prescribing information and medication guide, DailyMed. Label revised 2026.
- Eli Lilly. Zepbound prescribing information and patient information, DailyMed. Label revised 2026.
- Novo Nordisk. Ozempic prescribing information and medication guide, DailyMed. Label revised 2026.
- Eli Lilly. Mounjaro prescribing information and patient information, DailyMed. Label revised 2026.
- NIDDK. Low blood glucose (hypoglycemia). US National Institutes of Health.
- MedlinePlus. Hyperhidrosis (excessive sweating). US National Library of Medicine.
This article is for information only and is not medical advice. Talk to your prescriber or a qualified professional.