The qualifications for Mounjaro: a plain-English breakdown

Step 1, Check the two headline numbers before anything else

The first qualification checkpoint is straightforward: your BMI and whether any weight-related conditions apply. Mounjaro's UK licence covers adults with a BMI of 30 or above with no additional conditions required, and adults with a BMI of 27–29.9 provided at least one qualifying condition is present. Those conditions include high blood pressure, high cholesterol (dyslipidaemia), type 2 diabetes or prediabetes, obstructive sleep apnoea, and osteoarthritis, among others.

A quick habit worth building before your consultation: use the NHS BMI calculator to get your current figure. It takes under a minute, and it means you can answer the first eligibility question with confidence rather than an estimate. Write down the number.

For people of South Asian, Chinese, Middle Eastern, Black African or African-Caribbean backgrounds, UK guidance sets the thresholds 2.5 kg/m² lower, so 27.5 or above (no conditions) and 24.5–27.4 (with a qualifying condition). This matters, and a good prescriber will ask about your background as part of the assessment. The licensed indications for Mounjaro explain the full picture.

Step 2, The prescriber's medical review: what actually gets assessed

Meeting the BMI number gets you to the starting line. The clinical review that follows is where suitability is genuinely determined. A GPhC-registered prescriber reads your consultation responses personally (not software) and considers your full medical history alongside the BMI data.

Several conditions affect prescribing decisions. A personal or close family history of medullary thyroid carcinoma or multiple endocrine neoplasia type 2 (MEN2) means Mounjaro cannot be used. A history of pancreatitis is reviewed carefully. Certain kidney or liver conditions, current use of other medicines, and planned surgery are all relevant. The prescriber checks for interactions and contraindications before issuing any prescription.

This is also where medications you already take get scrutinised. Mounjaro slows gastric emptying, which can affect how quickly other medicines are absorbed, oral contraceptives being the most discussed example. Women on the pill are advised to add a non-oral contraceptive method for the first four weeks of treatment and for four weeks after each dose increase, because pill absorption may be reduced during that window, and if you want to make sure you are administering each dose correctly, the instructions for Mounjaro walk you through every step. The full contraindications list covers the medical histories a prescriber weighs most carefully.

Step 3, Identity, weight verification and what happens next

Once a prescriber has reviewed your answers and medical history, there are two further steps before a prescription can be issued through a regulated UK service: photo-ID verification and live weight confirmation on video. These are not bureaucratic extras. They protect you, and protect the integrity of a prescription process that the law requires to be clinically sound.

If you are transferring from another provider or seeking a dose increase, evidence of your current treatment and recent weight is also required before any change is made. That evidence-based approach to escalation reflects what the NICE appraisal of tirzepatide (TA1026) emphasises: clinical oversight at every stage, including reviewing whether treatment is still producing benefit.

On cost: private treatment pricing varies between providers and by dose. If you want to understand what the market looks like and what a legitimate price should include, our Mounjaro cost guide sets it out plainly, and if you are looking to reduce that cost, our page on finding a promotion code for Mounjaro is worth a look before you commit. For an overview of how Mounjaro sits alongside other licensed options, our treatment overview is a useful next read.

What disqualifies someone, and what to do if you are unsure

A handful of situations fall clearly outside the licence. Mounjaro is not recommended during pregnancy, while breastfeeding, or if you are actively trying to conceive. It is not licensed for under-18s. Active serious eating disorders are approached with particular caution and clinical sensitivity.

Beyond those hard stops, many situations sit in the grey, a complex medication list, a BMI just below the threshold, a recent diagnosis that may or may not be a qualifying condition. The honest answer in those cases is that a prescriber is the right person to make that call, not a checklist on a webpage. Our clinical team reviews every consultation personally, and if treatment is not appropriate, that decision is explained. For general questions before you start, our FAQs cover the most common queries. When you are ready, start your free consultation and a prescriber will assess your full picture the same day.