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When should I call 000 on a GLP‑1?

GLP Guidebook teamUpdated 12 Oct 20266 sourcesWritten from published sources
The short answer

On Mounjaro (tirzepatide), Wegovy or Ozempic (semaglutide), call triple zero (000) for signs of a severe allergic reaction, such as a swollen tongue or trouble breathing, or for collapse. Severe stomach pain that spreads to your back, or sudden loss of vision, needs the emergency department. Healthdirect's nurse line is 1800 022 222.

Which symptoms need 000 or the emergency department?

Severe pain in the stomach and back, a severe allergic reaction and loss of vision are among the serious side effects that need urgent help, Ozempic's Australian leaflet says.1

Get help now: call 000 if you are on a GLP‑1 and have:
  • a swollen tongue, swelling or tightness in your throat, difficult or noisy breathing, or persistent dizziness or collapse1,2
  • symptoms that could be a heart attack: severe pancreatitis pain can feel like one3
Go to the nearest emergency department for:
  • sudden, severe pain in the upper belly that may spread to your back, chest or sides, often with nausea and vomiting1,3
  • sudden loss of vision, or eyesight that is quickly getting worse1
  • a blocked bowel: severe constipation with stomach ache, bloating or vomiting1
If it feels critical or life-threatening, call 000 for an ambulance.4

When is it urgent, but not 000?

Some problems need a doctor the same day, or the emergency department if you can't get one.5,6

  • gallbladder pain with a fever, pain that simple pain relief doesn't settle, or pain that lasts a few hours or stops you eating and drinking normally5
  • signs of severe dehydration, such as extreme thirst, fast breathing or heart rate, confusion, or cold hands and feet6
  • injecting too much: phone the Poisons Information Centre on 13 11 26 or go to the emergency department, even if you feel fine1

Who can you call if you're not sure?

Healthdirect's free helpline, 1800 022 222, has registered nurses on it 24 hours a day, 7 days a week.4

In Victoria the service is called NURSE-ON-CALL. Calls may cost more from a mobile.4 Once you're safe, you can report the side effect: see How do I report a side effect to the TGA? Everyday stomach effects are in Guide 5.

Read the full picture

Related questions

How do I report a side effect to the TGA? How long can Mounjaro be out of the fridge? Is retatrutide legal in Australia? Do GLP‑1 patches or drops work?
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Sources

  1. Novo Nordisk. Ozempic (semaglutide) Consumer Medicine Information, prepared August 2026. Australian leaflet. medsinfo.com.au (PDF)
  2. healthdirect. Anaphylaxis (last reviewed November 2024). healthdirect.gov.au
  3. healthdirect. Pancreatitis (last reviewed December 2024). healthdirect.gov.au
  4. healthdirect. How healthdirect can help you. healthdirect.gov.au
  5. healthdirect. Gallstones (last reviewed March 2025). healthdirect.gov.au
  6. healthdirect. Dehydration (last reviewed July 2024). healthdirect.gov.au

Last checked 12 Oct 2026 · Next review due 12 Oct 2027 · Report an error

How this answer was made. Written by the GLP Guidebook team from the sources above, all checked on 12 Oct 2026. We don't publish medicine prices, and we don't name, rank or link to sellers or telehealth services. It's general information, not medical advice, and nothing here is an offer to supply any medicine. Talk to a GP, pharmacist or other qualified prescriber before starting, stopping or changing any medicine. How we write