Will My GP Prescribe Weight Loss Injections for Me?

Can GPs actually prescribe Mounjaro or Wegovy on the NHS right now?

The short answer is: some can, for some patients, from April 2026 onwards. NHS England updated the GP contract for 2026/27 to allow practices to prescribe tirzepatide (Mounjaro) directly, a significant shift from the previous position, which confined NHS weight-loss injections to specialist services. The catch is that participation is entirely voluntary. A practice in one town may be actively prescribing; a practice in the next street may not have joined the scheme at all.

Semaglutide (Wegovy) sits in a different category. Under NICE's guidance on semaglutide (TA875), it is available on the NHS only within specialist weight management services, for a maximum of two years, within a multidisciplinary programme. Your GP can refer you, but the prescribing happens in the specialist pathway, not at the practice. Waiting lists for those services are commonly long.

Scotland, Wales and Northern Ireland each have their own criteria and commissioning arrangements. If you're outside England, the thresholds and routes differ; check with your GP surgery about what applies locally. For a broader look at how weight loss injections work on the NHS, including the phased rollout, that page covers the detail.

What are the NHS eligibility thresholds, and are you likely to meet them?

This is where many people hit a wall. NHS tirzepatide prescribing currently requires a BMI of at least 40 alongside four or more of five specified conditions: high blood pressure, dyslipidaemia, obstructive sleep apnoea, cardiovascular disease, or type 2 diabetes. That is a high bar. It will broaden over time, from around June 2026, the scheme opened to people with a BMI of 35 to 39.9 meeting the same four-condition threshold, and a further expansion is expected around March 2027.

For some ethnic backgrounds (South Asian, Chinese, Middle Eastern, Black African or African-Caribbean) BMI thresholds are 2.5 kg/m² lower throughout, in line with NICE's tirzepatide recommendations (TA1026). But even meeting the BMI number on paper doesn't guarantee access. Every NHS patient must also engage with a wrap-around diet and activity support programme, and meeting criteria does not bind your practice to prescribe if it hasn't opted in.

If you're uncertain where you sit, the question of whether any doctor can prescribe these medicines for you involves both the NHS route and the private one, that page goes into both in detail. If you're wondering specifically whether your GP can prescribe weight loss injections, that page walks through what your practice can and cannot do under the current rules. Understanding who is actually authorised to prescribe weight loss injections in the UK is worth knowing before you approach your practice.

What happens if your GP says no, or your practice isn't taking part?

This is the situation a lot of people find themselves in, and it can feel genuinely frustrating. You may have a BMI and health history that clearly suggest benefit, but your practice hasn't joined the scheme, or you fall just outside the current NHS thresholds. That frustration is understandable.

The legal alternative is a private prescription from a regulated service. The clinical process is the same: a prescriber (in our case, a GPhC-registered Independent Prescriber, not a chatbot or automated system) reviews your medical history, weight, and any contraindications before deciding whether treatment is appropriate. If it is, a prescription is issued and your medicine is dispensed from our own GPhC-registered pharmacy. You can verify that registration at any time on the GPhC pharmacy register.

Private treatment is available to adults with a BMI of 30 or above, or from 27 with at least one weight-related condition such as prediabetes, hypertension, or high cholesterol. The private licensed criteria follow the medicines' UK marketing authorisations rather than the narrower NHS commissioning thresholds. For context on what the costs look like, this overview of weight loss injection pricing sets out what a legitimate private prescription typically includes.

Is a private GP different from your NHS GP for this purpose?

Some NHS GPs also see patients privately, and some private GPs do prescribe weight loss injections, so your own doctor may be an option even outside the NHS pathway, depending on their practice. The prescriber does not need to be a GP specifically; a GPhC-registered Independent Prescriber, which includes certain pharmacists and nurse prescribers, can assess and prescribe these medicines lawfully. What matters is that the clinical assessment is thorough and the medicine comes through the licensed UK supply chain.

Red flags to watch for: any service offering these medicines without a clinical consultation, or pricing so far below market rates that it raises questions about sourcing. The MHRA has issued repeated warnings about counterfeit pens entering the UK, with fake versions found to contain the wrong substances entirely. Our about us page sets out exactly how our clinical and dispensing process works, and what safeguards are in place. If you have questions before starting, our FAQs cover the most common ones, and our team is reachable through the contact page.