This is a very common side effect and can occur in more than 1 in 10 people taking Mounjaro or Wegovy. You’re most likely to experience vomiting when you first start your medication and when you increase your dose.
Here’s what we recommend to help you:
- Stay hydrated by taking small sips of water. You could also try herbal teas such ginger and peppermint
- Eat small and frequent meals to keep your energy levels up. Stick to a bland diet that is easy on your stomach, including toast, rice and bananas
Need Extra Support?
Many people find they can manage mild vomiting on their own using the tips above.
However, if you'd like to discuss your symptoms in more detail, or seek advice on anti-sickness medication or over the counter antacids that might help, our clinicians are here to support you. Please contact us here.
| When to Contact Your GP or call 111 |
Contact your GP or call 111 if:
- You have been vomiting for more than a couple of days
- You have signs of dehydration (dark urine, or peeing less than usual)
Make sure you inform your healthcare provider you have been taking weight loss medication.
If you are using oral contraception and have experienced vomiting within 3 hours of taking an oral contraceptive pill, you may need a repeat dose of your pill to avoid an unwanted pregnancy. You should contact your GP or call 111 for medical advice.
| When to Seek Urgent Help |
Call 999 or go to A&E if:
- Your vomit looks like coffee granules
- Your vomit contains blood
- You have a fever alongside your vomiting
- You have sudden or severe stomach pain alongside your vomiting
- You are vomiting 3 times or more per day
Make sure you tell them you have been taking weight loss medication and please inform your MedExpress clinical prescriber via email.