Can your GP give you weight loss injections on the NHS?

Step 1: Check whether your GP practice is participating

Since 1 April 2026, GP practices in England can prescribe tirzepatide (Mounjaro) for weight management under the 2026/27 GP contract. Participation is optional, so the first practical step is simply asking your own practice whether they have signed up. Many haven't yet, and those that have must follow NHS England's phased eligibility criteria closely.

As things stand, the NHS cohort currently open requires a BMI of 40 or above plus four or more of five specified weight-related conditions: high blood pressure, dyslipidaemia, obstructive sleep apnoea, cardiovascular disease, or type 2 diabetes. A second cohort, covering people with a BMI of 35 to 39.9 and the same four conditions, opened in June 2026. Lower BMI thresholds apply for South Asian, Chinese, Middle Eastern, Black African and African-Caribbean backgrounds under NICE guidance. You can read the full NICE recommendation for tirzepatide at NICE TA1026.

Every NHS patient prescribed a weight loss injection must also take part in wraparound diet and activity support, it isn't optional, and meeting the BMI criteria alone doesn't guarantee a prescription. Your GP will assess the whole picture, including other medicines you take and any relevant health history.

Step 2: Understand what happens after your GP refers or prescribes

If your practice is participating and you meet the criteria, your GP either prescribes directly or refers you into an NHS specialist weight management service, depending on local arrangements. For Wegovy (semaglutide), NICE's recommendation (TA875) specifies it should be used within a specialist service with multidisciplinary management, so most Wegovy on the NHS still flows through tier 3 or tier 4 services, where waiting lists are commonly long.

Once a prescription is issued, you collect it from a pharmacy, or a dispensing service delivers it. The medicine is refrigerated, so storage at home matters: most people keep it in the fridge door alongside everyday items, which works well as a reminder. The prescriber will walk you through injection technique and the titration schedule. If you want a detailed look at how to administer a weight loss injection correctly, that guidance is worth reading before your first dose.

Your GP should also discuss contraception if that's relevant to you. For tirzepatide specifically, women using the oral contraceptive pill are advised to use an additional non-oral method for the first four weeks of treatment and for four weeks after each dose increase, because tirzepatide can reduce pill absorption during that window. This is worth raising explicitly at your appointment.

Step 3: Know your private route if the NHS isn't an option yet

A large number of people who would benefit from weight loss injections don't currently qualify for NHS access, either their BMI or comorbidity count falls just outside the active cohort, or their GP practice hasn't joined the scheme. If you're unsure about your entitlement, it helps to read up on whether a GP can give weight loss injections and what the current rules mean in practice. In that situation, a private prescription from a GPhC-registered online pharmacy is the regulated alternative.

The private eligibility criteria follow the medicines' licensed indications: adults with a BMI of 30 or above, or 27 or above with at least one weight-related condition, can be assessed. A GPhC-registered Independent Prescriber reviews the consultation personally. That's different from a GP appointment in one respect: there's no referral, no waiting list, and the review happens the same day the consultation is submitted. The full overview of weight loss injections explains both medicines in more detail, including how their results differ.

If you're comparing what's involved in the two routes, it's also worth understanding whether your GP will actually prescribe weight loss injections for you, since eligibility on paper and access in practice are not always the same thing. It's also worth understanding the range of injectable treatments now licensed in the UK, the picture has changed significantly since 2023. Cost is a fair question too; you can find an honest breakdown of what 'affordable' actually means for a prescription medicine and what any legitimate price should include.

For people weighing up all their options, the weight loss treatments overview covers both injectable and oral routes currently available. And if a question isn't answered here, the FAQs page covers many of the practical points patients ask most often.

If you'd like to check whether you're eligible for treatment through a clinician-led private pharmacy, you're welcome to check your eligibility with our prescribers, the consultation is free, and there's no obligation.