Can I get Mounjaro from my GP on the NHS?

The myth: 'My GP can prescribe Mounjaro for weight loss whenever they think it's right'

This is the misunderstanding our prescribers hear most weeks. Many people assume that once a medicine is licensed, any GP can simply write a prescription for it on clinical grounds. With Mounjaro, that is not how NHS prescribing currently operates. NICE published its recommendation for tirzepatide in Technology Appraisal TA1026 in December 2024, but the NHS England commissioning guidance sits behind a phased rollout that restricts which patients can access the treatment through the health service, and when.

From June 2025, the first phase opened for adults with a BMI of 40 or above who also have four or more of five specific weight-related conditions: type 2 diabetes, high blood pressure, dyslipidaemia, obstructive sleep apnoea, and cardiovascular disease. That is a deliberately narrow group. Cohort 2, covering adults with a BMI between 35 and 39.9 alongside four or more of those conditions, became eligible from 23 June 2026. Lower BMI thresholds apply for people of South Asian, Chinese, Middle Eastern, Black African or African-Caribbean backgrounds, where the threshold is reduced by 2.5 kg/m² throughout. You can check where your own BMI sits against the current thresholds using the NHS BMI calculator.

Even within those groups, your GP's practice has to have opted in to the prescribing scheme under the QOF 2026/27 GP contract. Participation is voluntary. A practice that has not yet signed up cannot issue an NHS prescription for Mounjaro regardless of your BMI or comorbidities.

What happens at a GP appointment if you ask about Mounjaro

A GP who has opted in will review your medical history, confirm your BMI and comorbidities against the current phase criteria, and check whether the wrap-around dietary and lifestyle support is in place. That last point matters: NHS commissioning requires patients to engage with structured behaviour-change support alongside the medicine. If your practice has not yet set up that support pathway, the prescription cannot go ahead even if you personally tick every clinical box.

For anyone falling outside the current phase criteria, a GP can note your interest and flag you for a later cohort, but they cannot prescribe Mounjaro on the NHS today simply because they agree it would benefit you. That restriction is commissioning policy, not clinical opinion. It is one of the reasons many people look into the GP prescribing criteria in more detail before their appointment, so they are not left surprised.

It is also worth knowing that the criteria for private prescriptions differ from NHS thresholds. The licensed eligibility for tirzepatide as a weight-management medicine covers adults with a BMI of 30 or above, or 27 or above with at least one weight-related condition such as prediabetes, hypertension or high cholesterol. A prescriber assesses the full clinical picture; BMI alone does not determine the outcome. More detail on how eligibility is assessed is on the Mounjaro BMI eligibility page.

If your GP cannot prescribe it yet, what are your options?

Waiting for the NHS rollout is entirely reasonable if you meet later-phase criteria and your GP is already enrolled. The phased expansion is planned to continue through 2027, broadening access step by step. The NHS route means the medicine is covered, and the clinical oversight is built in.

The private route is the alternative for people who do not yet meet NHS thresholds, whose practice has not opted in, or who would rather not wait. A GPhC-registered online pharmacy can accept a private consultation and, if a prescriber determines you are clinically suitable, issue a private prescription. Mounjaro is a prescription-only medicine in the UK: there is no legal route to it without a clinical assessment and a prescription from a qualified prescriber. Our Mounjaro overview page covers how the medicine works and what the clinical trial evidence shows.

On cost: private treatment is a genuine commitment. The cost of Mounjaro privately varies by dose and provider, and it is worth reading what different services actually include before choosing one. Some headline prices exclude the consultation, prescription, delivery or aftercare support; a complete picture matters more than the lowest number on a comparison page.

If you are already receiving treatment elsewhere and are thinking about continuity, it helps to understand your options around pausing Mounjaro and what that means clinically. It is also a separate but related question to getting tirzepatide from a doctor more broadly, which covers both NHS and private GP routes.

When you are ready to explore whether private treatment is right for you, speak to our prescribers through a free consultation. A real clinician reads every submission the same day; no algorithm decides your suitability.