How do you switch from Wegovy to Mounjaro?
To switch from Wegovy to Mounjaro for weight loss in the UK, you must first stop taking Wegovy and wait for a "washout" period of about 4–5 weeks before starting Mounjaro, to ensure the first medication is out of your system. You should always make this change under the guidance of a healthcare professional, who will assess your suitability for Mounjaro and start you on its standard initial dose regardless of your previous Wegovy dose. Mounjaro may offer greater weight loss for some people, but it is not suitable for everyone, so a medical review is essential before switching.
- Stop Wegovy and wait 4–5 weeks before starting Mounjaro ("washout" period).
- Consult your doctor to ensure Mounjaro is safe and appropriate for you.
- Begin Mounjaro at the standard starting dose (2.5mg), regardless of your previous Wegovy dose.
- Do not use both medications at the same time.
- Mounjaro may lead to greater weight loss than Wegovy for some people.
- Medical supervision is required throughout the process to monitor side effects and effectiveness.
This text has been fact checked for accuracy by Alessandro Grenci, Superintendent Pharmacist at medino.