Can a GP Prescribe Weight Loss Injections in the UK?

Does your GP have the authority to prescribe weight loss injections?

The short answer is yes, in principle. Mounjaro (tirzepatide) and Wegovy (semaglutide) are licensed prescription medicines, which means any doctor with a valid prescribing licence (including your GP) can prescribe them if the clinical case stacks up. The question isn't one of authority; it's one of whether your GP has opted into the relevant NHS contract and whether you meet the criteria that contract requires.

From 1 April 2026, GP practices in England can prescribe tirzepatide for weight management under the 2026/27 QOF update. The key word is can. Participation is optional, so a meaningful number of practices are not offering it yet. Your GP may also be waiting for local integrated care board guidance, or may have a limited capacity for the wraparound diet and activity support that NHS commissioning requires alongside the prescription. It is entirely reasonable to ask your practice directly whether they are participating.

NHS England's guidance on weight management injections explains the wraparound support requirement clearly, and it is worth reading before your GP appointment so you know what to expect.

What NHS eligibility criteria does a GP have to follow?

Even at a participating practice, your GP is bound by NHS commissioning thresholds, and those thresholds are deliberately phased. Understanding them before your appointment can save a frustrating conversation.

From around June 2025, NHS prescribing of tirzepatide opened to adults with a BMI of 40 or above plus four or more of five qualifying conditions: high blood pressure, dyslipidaemia, obstructive sleep apnoea, cardiovascular disease, or type 2 diabetes. From 23 June 2026 a second cohort opened: BMI 35–39.9 with four or more of those same conditions. BMI thresholds are reduced by 2.5 kg/m² for people of South Asian, Chinese, Middle Eastern, Black African or African-Caribbean backgrounds. A further expansion is expected around March 2027.

Wegovy (semaglutide) on the NHS follows a different track, currently it is available through specialist weight management services rather than GP practices, with its own NICE-recommended thresholds under TA875.

The criteria feel strict because they are. Many people who would benefit medically do not yet tick enough NHS boxes. That is not a judgement on their health; it is simply where the phased rollout stands.

What if your GP can't or won't prescribe weight loss injections right now?

This is the situation a lot of people are in, and it can feel genuinely disheartening, particularly if you have been working on your weight for years. If you are unsure whether your own GP is able to help, it is worth reading about whether your GP can prescribe weight loss injections before your appointment, as the answer often depends on factors specific to your practice. Your GP may be clinically sympathetic but unable to prescribe on NHS terms at their practice, or you may fall just outside the current eligibility band.

In that case, a private prescription from a GPhC-registered prescriber is the lawful alternative. The clinical assessment is equally real: prescribers review your medical history, current medicines, BMI, and any weight-related conditions before deciding whether treatment is appropriate. If you want a broader picture of the landscape, our guide to who can prescribe weight loss injections covers the full range of clinicians legally able to issue these prescriptions, from GPs to independent pharmacist prescribers. The licensed eligibility criteria for private prescribing mirror the medicine's UK licence, broadly, a BMI of 30 or above, or 27 or above with at least one weight-related health condition.

For a grounded look at what private treatment actually costs and what those costs include, the cost context page sets out the full picture without the fine print. You can also read about the factors that influence whether a GP will prescribe if you want to prepare for that conversation first.

How does prescribing work through a private online pharmacy?

The process is straightforward, though it involves the same clinical gate that a GP appointment would. A GPhC-registered Independent Prescriber reviews your consultation, not software, not an automated checklist, but a named clinician reading your answers that same day. Identity and weight are verified during the process, and your GP is notified in line with GPhC guidance.

Once a prescription is issued, treatment is dispensed from a GPhC-registered pharmacy through the licensed UK supply chain. You can verify any online pharmacy on the GPhC register before you share any personal information, that is the single most important safety check when choosing a private route. If you are still weighing up the NHS versus private route, our page on whether GPs can prescribe weight loss injections explains how both pathways compare in practice.

The range of options, how they compare, and what the assessment involves are covered on the treatment overview page. If you have questions before starting, the FAQs cover the most common ones, and the contact page reaches our team directly.