What Are the Criteria for Mounjaro?

Because Mounjaro is a prescription-only medicine, access to it always requires a clinical assessment. There is no single universal set of criteria that applies everywhere — what a prescriber looks at will differ between a publicly funded healthcare programme and a private weight-management clinic, and between different countries.

Commonly referenced factors

While the specific thresholds vary by setting, prescribers generally look at a combination of the following:

• BMI: Many programmes use BMI as a starting point. In publicly funded settings (such as certain NHS-commissioned services in the UK), minimum BMI thresholds are typically required, sometimes with a lower threshold if a weight-related health condition is also present.
• Weight-related health conditions: Conditions such as type 2 diabetes, high blood pressure, or sleep apnoea can affect eligibility in some programmes.
• Previous weight-management attempts: Some funded pathways require evidence that dietary, behavioural, or other interventions have already been tried.
• Clinical suitability: Your prescriber will also consider your full medical history, any medicines you already take, and whether there are any contraindications — such as a personal or family history of certain thyroid conditions or pancreatitis.

Privately prescribed Mounjaro

Outside publicly funded routes, criteria for Mounjaro through private prescribers may differ. Private clinicians still carry out a clinical assessment and still prescribe it as a prescription-only medicine — they are not able to supply it without one — but the specific BMI or health-condition thresholds they apply can vary from clinic to clinic. If you are exploring this route, it is worth asking your private prescriber exactly what their assessment covers.

How criteria compare across medicines

If you have also been looking at semaglutide-based options, it may help to review the criteria for Wegovy alongside this, as the two medicines have broadly similar but not identical eligibility frameworks depending on the setting. The right choice for you is a decision for your prescriber, based on your individual history.

For a broader overview of Mounjaro — including how it works and what to expect once prescribed — visit our Mounjaro guide.

Once you have been prescribed Mounjaro and begun your treatment, staying consistent and organised becomes the priority. GLP Trackr is built specifically for people in exactly this position.

The app's dose logging feature lets you record every weekly injection — including the dose strength, date, and time — so you always have an accurate record of where you are in your treatment. This is particularly useful in the early titration phase, when doses are being stepped up under your prescriber's guidance and keeping a clear log matters.

Alongside dose tracking, the daily check-in lets you note how you are feeling each day — energy, mood, and any side effects — building a picture of your progress that is genuinely useful to bring to your next prescriber appointment. The app's doctor report feature can help you summarise that data clearly, so conversations with your prescriber are better informed.

You can also log your injection sites and let the app suggest your next rotation location, helping you avoid overusing any one area — a small but worthwhile habit for anyone using injection equipment with Mounjaro.

GLP Trackr is free to start — download it on the App Store or Google Play and explore all of these features with a 7-day free trial.

GLP Trackr is a tracking app, not a medical service. Any questions about your eligibility, dose, or suitability for Mounjaro should always be discussed with your prescriber or doctor — they are best placed to advise based on your full clinical picture.