How to Switch Safely

5
min read
How to Switch Safely article cover from SheMed UK health library.

Switching from Mounjaro to Wegovy

We know this is one of the biggest questions on your mind. The good news: for most people, yes, it is safe to switch from Mounjaro to Wegovy, provided it is done with the right clinical guidance and support.

Why switching can be safe

They belong to the same family

Both Mounjaro and Wegovy are GLP-1 receptor agonists. That means your body is already familiar with how they work: slowing digestion, regulating appetite, and supporting weight loss. Because of this, switching is not like starting an entirely new type of treatment.

Your body has already adapted

If you have been taking Mounjaro for weeks or months, your system has already adjusted to GLP-1 medication. This helps reduce the risk of side effects when moving to Wegovy.

No need for a long break

There is no requirement for a long break when switching between the medications. With the correct switching dose, you can start Wegovy just seven days after your last dose of Mounjaro, so your treatment is not disrupted.

Switching to Wegovy explained

You do not always need to restart on the very lowest dose of Wegovy. If you have had minimal or no side effects, you may be able to begin on a higher dose to keep your progress moving.

Our clinicians will guide you to the right starting dose, taking into account:

  • Your current Mounjaro dose
  • How well you have tolerated treatment so far
  • Your results to date

If you tolerated Mounjaro well (no or mild side effects)

You may switch directly to a comparable Wegovy dose.

If you experienced severe side effects on Mounjaro

You may be advised to restart at the lowest Wegovy dose (0.25 mg).

Our clinical team will support you to start on the Wegovy dose that suits you best, considering your current Mounjaro dosage, tolerance, and results so far.

Comparable doses: Mounjaro to Wegovy

You can usually follow your normal weekly injection schedule, leaving a 7-day gap between your last Mounjaro dose and your first Wegovy dose.

  • Mounjaro 2.5 mg → Wegovy 0.5 mg
  • Mounjaro 5 mg → Wegovy 0.5 mg
  • Mounjaro 7.5 mg → Wegovy 0.5 mg
  • Mounjaro 10 mg → Wegovy 1 mg
  • Mounjaro 12.5 mg → Wegovy 1 mg
  • Mounjaro 15 mg → Wegovy 1 mg

Ongoing monitoring

Whatever your starting point, you will be closely supported. Our team will monitor your response and adjust your dose as needed to balance effectiveness with tolerability.

Our promise

Switching does not mean starting over. With SheMed, it means continuing your journey in a safe, supported way, so you do not lose momentum and can stay on track toward your health goals.

Take charge of how you look and feel.
Backed by science. Guided by experts.
SheMed’s medical weight loss programme combines expert care and science-backed treatment to help you feel and look your best — for life.

The content on the SheMed blog is provided for general informational and educational purposes only. While SheMed provides professional weight loss services and strives to ensure the information shared is accurate and up to date, we make no representations or guarantees as to its accuracy, completeness, or timeliness. This content should not be taken as personal medical advice or a substitute for consultation with a qualified healthcare provider. Always speak with your doctor or licensed medical professional about your individual health or medical needs before starting any new treatment or programme. Never disregard or delay seeking professional medical advice because of something you have read on this site.  SheMed is not responsible for any actions you may take based on the information provided in this blog.

Related Articles