Bloating and wind

Mounjaro’s, Wegovy’s and Ozempic’s leaflets list bloating of the stomach and gas (flatulence) as common, up to 1 in 10 people. In two Zepbound trials, 3% to 4% reported each, against 2% on placebo. Wegovy’s and Ozempic’s list bloating among the signs of bowel obstruction, a severe form of constipation.

Reported wind in Zepbound’s trialsPlacebo 2%Zepbound 3 to 4%

How common it is

Each leaflet’s own words for how common each is, quoted as written. Zepbound’s figures are the share of people in its two weight trials.

MedicineBloatingWind
MounjaroCommon (may affect up to 1 in 10 people)Mounjaro KwikPen patient leafletCommon (may affect up to 1 in 10 people)Mounjaro KwikPen patient leaflet
Zepbound3% to 4%, against 2% on placebo3% to 4%, against 2% on placebo
WegovyCommon: may affect up to 1 in 10 peopleWegovy FlexTouch patient leafletCommon: may affect up to 1 in 10 peopleWegovy FlexTouch patient leaflet
OzempicCommon (may affect up to 1 in 10 people)Ozempic patient leafletCommon (may affect up to 1 in 10 people)Ozempic patient leaflet

What else they say

  • By dose in the trials

    In Zepbound’s trials, wind was reported by 3% on 5mg and 10mg and 4% on 15mg, against 2% on placebo; bloating the same.

  • Listed alongside it

    Mounjaro’s, Wegovy’s and Ozempic’s leaflets also list burping, indigestion and reflux or heartburn as common side effects.

  • A severe form

    Wegovy and Ozempic list bowel obstruction: a severe form of constipation, with stomach ache, bloating or vomiting.

  • If it bothers you

    If a side effect bothers you or doesn’t go away, the NHS says a pharmacist or doctor may give advice on how to reduce it.

Questions

Is bloating a side effect of Mounjaro?

Yes. Mounjaro’s leaflet lists bloating of the stomach and gas (flatulence) as common, up to 1 in 10 people.

Do the NHS pages list it?

Not among their common side effects. Both say those aren’t all the side effects, and point to the leaflet that comes with your medicine for a full list.

When is it serious?

Wegovy’s and Ozempic’s leaflets list bowel obstruction, a severe form of constipation with stomach ache, bloating or vomiting. If you think you’re having a serious side effect, the NHS says call 111.

Jabwise Pro

Take your record to the appointment.

Jabwise turns your doses, weight and check-ins into a PDF for your GP or doctor, over a week, a month or longer. It states only what you logged.

Jabwise Share Progress with For My GP selected, a one-month range, a five-page report preview and a Share PDF button

Sources

General information, not medical advice. Follow your prescriber’s guidance.

Getting real advice

We’re not doctors. This page sums up what the NHS and the official medicine information say, and can’t tell you what’s right for your body: your prescriber’s instructions and the leaflet in your box come first. More in our terms.

  • Quoted from official sources, each one linked
  • Sources checked 12 October 2026
  • No dosing advice; your prescriber comes first