Mounjaro and nausea: causes, tips and when to get help
Nausea on Mounjaro (tirzepatide): why it happens, self-care measures and the warning signs that need medical help.
Get urgent medical help if:
- you have severe, persistent pain in your stomach area that may spread to your back, with or without vomiting (possible pancreatitis)
- you cannot keep any fluids down, or have signs of dehydration such as dizziness, confusion or passing very little urine
Call 999 or go to A&E in an emergency. For urgent advice, call NHS 111.
About nausea on Mounjaro
Feeling sick is one of the most commonly reported effects of GLP-1 medicines. These medicines slow how quickly the stomach empties, which can make you feel full or queasy, particularly when starting treatment or after a dose increase.
Nausea is listed among the commonly reported side effects of Mounjaro in our reference data.
Things that may help
- Eat smaller meals and stop when you start to feel full
- Eat slowly and avoid lying down straight after eating
- Limit greasy, fried or very rich foods, which some people find make nausea worse
- Sip water or other non-fizzy fluids regularly through the day
A pharmacist can advise on suitable over-the-counter options.
Speak to your prescriber if
- nausea is stopping you eating or drinking normally
- it has not settled after the first few weeks on a dose
- you are thinking about increasing your dose while still feeling unwell
Report suspected side effects through the MHRA Yellow Card scheme. Reports help the MHRA monitor the safety of medicines.
Frequently asked questions
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