Can your GP prescribe Mounjaro for weight loss?

What NICE and NHS England actually authorised

NICE's appraisal of tirzepatide, published in December 2024 and updated in September 2025, recommended it for adults with a BMI of 35 or above plus at least one weight-related condition from a defined list: high blood pressure, dyslipidaemia, obstructive sleep apnoea, cardiovascular disease, or type 2 diabetes. The threshold drops by 2.5 kg/m² for people from certain ethnic backgrounds under UK guidance. That recommendation unlocked NHS prescribing in principle, but the rollout is phased deliberately, because demand is expected to outstrip supply for some time.

From 23 June 2026, Cohort 2 opened: people with a BMI of 35–39.9 and four or more of those conditions can now be referred. The first cohort (BMI 40-plus, four or more conditions) launched in June 2025. Each stage is designed to ensure the NHS can deliver the wraparound diet and activity support that the approval requires alongside the medicine itself.

NHS England's guidance on weight-management injections makes clear that meeting the criteria does not guarantee access, your GP practice still needs to be participating, and referral to wraparound support must be in place. That is what makes the picture so variable from one postcode to another.

When a GP can prescribe Mounjaro through the NHS today

From 1 April 2026, GP practices in England can prescribe Mounjaro under the 2026/27 QOF contract. Crucially, participation is optional. Some practices signed up immediately; others are still assessing capacity or waiting for their ICB to confirm local arrangements. So even if you meet the clinical criteria, your GP may tell you they are not yet offering this service.

If your BMI and qualifying conditions fit the current phase, the conversation with your GP is worth having. Bring the numbers: your current BMI, your diagnosed conditions, and any recent blood-pressure or HbA1c readings. A GP who is opted in can check whether you fall within the active cohort and refer you to the support programme your treatment must run alongside.

For people who are curious about where they stand before making that appointment, understanding exactly when a GP can prescribe Mounjaro under the NHS rollout gives a clear breakdown of each phase and its criteria. It is worth reading alongside whatever your practice tells you, because the phases are moving quickly.

The private prescription route: what is different

Private prescribing follows the licensed criteria in the medicine's SmPC rather than the NICE NHS thresholds. That means 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, can be assessed, and if you fall below the NHS thresholds it is still worth reading about how to get Mounjaro if you are not obese to understand what the private route requires. No GP referral is needed. The range of prescribers authorised to prescribe Mounjaro includes GPhC-registered Independent Prescribers working in regulated online pharmacies, not only GPs.

At nume, a named prescriber, not software, reviews every consultation the same day it arrives. If you submit your consultation before 12pm on a weekday, a GPhC-registered Independent Prescriber reads your answers that day and, if clinically suitable, your treatment is dispatched the same afternoon for free next-working-day delivery via DPD. The process includes photo-ID verification, live weight confirmation, and GP notification in line with GPhC guidance, so your own doctor is kept in the loop even when the prescription originates privately. You can explore how that works on our about page.

Cost is a genuine consideration with the private route. The price of tirzepatide at a private pharmacy reflects the fact that Eli Lilly raised its UK list price significantly from September 2025, reported market prices since then have ranged roughly £149 to £375 per month depending on the dose and provider. For a fuller picture of what drives that figure and what a legitimate prescription price should include, the Mounjaro price guide is worth reading before you compare providers.

Checking any prescriber or pharmacy before you proceed

Whoever prescribes Mounjaro for you, the supply must come through a pharmacy you can verify. The GPhC register lets you check any online pharmacy's registration in under a minute. The MHRA has warned repeatedly about counterfeit weight-loss pens sold through social media and unregistered sellers, fake pens have in some cases contained insulin rather than tirzepatide, with serious consequences for patients who used them without knowing. A seller offering these medicines without clinical assessment is a clear warning sign, regardless of how low the price looks.

If you are considering buying Mounjaro online and want to understand what a safe, regulated process looks like from start to finish, the guide to buying Mounjaro online covers what to check. And if the NHS route still feels like the right path for you, the NHS Mounjaro prescribing page goes into the phased criteria in more detail.