Does Zepbound cause joint pain?

Joint pain is not listed as a common side effect in the Zepbound or Mounjaro labels. Aches can come from dehydration, eating much less, muscle loss or new exercise. A hot, swollen joint needs a doctor's review.

Can Ozempic or Zepbound cause back pain?

Back pain is not a listed common side effect. But severe belly pain that spreads to the back is a warning sign of pancreatitis, which all four labels list as a serious risk. Get urgent care for it.

Why do I have chills or flu-like symptoms on Zepbound?

Chills and flu-like symptoms are not listed in the labels. They are often a coincidental infection. Fever with upper-belly pain can be a gallbladder problem and needs prompt care.

Why am I always cold on Ozempic or Mounjaro?

The labels don't list it. People eating far less and losing weight quickly often report it, but the research on eating less and body temperature is mixed. Tell your clinician if it persists so other causes can be checked.

Does Wegovy help knee pain?

In the STEP 9 trial of adults with obesity and knee osteoarthritis, semaglutide reduced knee pain scores more than placebo over 68 weeks, alongside more weight loss.

Can Zepbound, Ozempic, Wegovy or Mounjaro Cause Body Aches, Joint Pain or Chills?

Body aches, joint, back or muscle pain, chills and feeling cold on Zepbound, Ozempic, Wegovy or Mounjaro: what labels say, likely causes, red flags, user stories.

Anonymous user report. Not medical advice. Peptides discussed are not FDA-approved for the uses described. Editorial process →

Short answer

Not directly, as far as the labels show. None of the US labels for Zepbound, Mounjaro, Wegovy or Ozempic lists joint pain, back pain, muscle aches, chills or flu-like symptoms among the common side effects seen in their trials. People still report them, and the usual explanations are fluid lost to vomiting or diarrhea, eating far less, losing some muscle along with fat, and new exercise. A few aches are warning signs: severe belly pain that spreads to the back can be pancreatitis, and upper-belly pain with fever can be a gallbladder problem. For knee osteoarthritis, a large semaglutide trial found less pain, not more. Not medical advice. Peptide Confessions does not publish dosing, timing, injection or sourcing guidance. Last reviewed October 31, 2026.

What the labels and trials say

Labels checked: Zepbound, Mounjaro, Wegovy, Ozempic (DailyMed, October 2026).

Symptom	US labels	What the evidence shows
Joint pain, arthritis	Not listed as a common side effect of any of the four	STEP 9 (NEJM 2024): in 407 adults with obesity and knee osteoarthritis, knee pain scores fell 41.7 points on semaglutide vs 27.5 on placebo over 68 weeks, with 13.7% vs 3.2% weight loss
Back pain	Not listed as a common side effect	All four labels warn that pancreatitis can cause severe belly pain "sometimes radiating to the back"
Muscle aches, cramps	Not listed as a common side effect	Fast weight loss includes some lean mass (GLP-1 muscle loss); vomiting and diarrhea can cause dehydration
Chills, fever, flu-like	Chills and flu-like symptoms not listed; fever is listed as a possible sign of gallbladder problems	No trial signal; a fever with chills usually points to an infection or another cause
Feeling cold	Not listed	Evidence on eating less is mixed: long-term calorie restriction was linked to slightly lower core temperature in one study (Soare 2011), but a 2-year randomized trial of moderate restriction found no clear difference (CALERIE 2)

Likely causes

Cause	What it can feel like	Who it affects most
Dehydration and lost salts	Cramps, headache, achy and weak, light-headed on standing	People with vomiting or diarrhea, or eating and drinking much less; labels warn dehydration can lead to kidney injury
Eating far less	Cold, tired, achy, low energy	Very low intake, skipped meals, fasting on top of a GLP-1
Losing muscle with fat	Weaker, sorer after exercise	Fast weight loss with little protein or strength work
Moving more	Sore muscles and joints for a few days	People starting new exercise as weight comes off
Pancreatitis	Severe, constant belly pain that can spread to the back, often with vomiting	Anyone on these drugs; it needs urgent care (GLP-1 pancreatitis)
Gallbladder problems	Upper-right belly pain, fever, yellow skin or eyes	More common with fast weight loss (GLP-1 gallbladder problems)
An infection	Fever, chills and aches with cough, sore throat or burning urine	Coincidental illness, not the drug

When to get help

—Go to emergency care for severe belly pain that won't go away, especially if it spreads to your back or comes with vomiting.
—See a doctor promptly for upper-belly pain with fever, yellow skin or eyes, or pale stools.
—Get checked for a fever with chills, a hot, red, swollen joint, or muscle pain with dark urine or weakness.
—Tell your prescriber about cramps or aches that come with ongoing vomiting or diarrhea, since dehydration can affect the kidneys.

What users report here

From live confessions (checked October 31, 2026). #686 says their feet and joints felt less inflamed within the first couple of weeks on semaglutide, before the scale moved. On retatrutide, #885 lost 80 lb and feels great but is "absolutely freezing without the extra fat", and #546 lists feeling cold all the time, exhaustion, skin that hurts and getting a little weaker while losing weight fast. Stories, not rates, and retatrutide is an investigational drug that is not approved anywhere.

More confessions from the archive

Community Q&A

Does Zepbound cause joint pain?: Joint pain is not listed as a common side effect in the Zepbound or Mounjaro labels. Aches can come from dehydration, eating much less, muscle loss or new exercise. A hot, swollen joint needs a doctor's review.
Can Ozempic or Zepbound cause back pain?: Back pain is not a listed common side effect. But severe belly pain that spreads to the back is a warning sign of pancreatitis, which all four labels list as a serious risk. Get urgent care for it.
Why do I have chills or flu-like symptoms on Zepbound?: Chills and flu-like symptoms are not listed in the labels. They are often a coincidental infection. Fever with upper-belly pain can be a gallbladder problem and needs prompt care.
Why am I always cold on Ozempic or Mounjaro?: The labels don't list it. People eating far less and losing weight quickly often report it, but the research on eating less and body temperature is mixed. Tell your clinician if it persists so other causes can be checked.
Does Wegovy help knee pain?: In the STEP 9 trial of adults with obesity and knee osteoarthritis, semaglutide reduced knee pain scores more than placebo over 68 weeks, alongside more weight loss.
Does this page give dosing advice?: Peptide Confessions does not publish dosing, timing, injection or sourcing guidance.

Sources

Last reviewed October 31, 2026. Anonymous first-hand reports plus sourced context — educational only, not medical advice. Editorial policy & corrections.