Buying a semaglutide injection in the UK: what the decision actually involves

First: is your decision between NHS and private supply?

Many people arrive at this question assuming the main choice is which website to use. The more important question is which clinical route makes sense for your situation. The NHS does prescribe semaglutide for weight management under the brand Wegovy, but access is currently routed through specialist weight management services and is subject to strict eligibility criteria under NICE guidance TA875, including a requirement to be supported by a multidisciplinary team for a maximum treatment period. Waiting lists at those services can stretch for months, sometimes considerably longer.

Private supply through a regulated online pharmacy removes the referral queue. You do not need a GP letter, a specialist appointment, or a prior NHS assessment. What you do need is a prescriber to assess you. That clinical review is the step that makes the supply legal and, more importantly, the step that makes it safe. If you are weighing up timing, access, and the clinical support that comes with each route, our overview of Wegovy in the UK sets out those differences clearly.

One misconception worth letting go quietly: that buying a semaglutide injection privately somehow bypasses the medical side of things. It does not. A legitimate private prescription requires exactly the same professional judgement as an NHS one. The difference is speed and convenience, not corners cut.

Second: how do you know an online pharmacy is genuinely registered?

Not every website offering a semaglutide injection is operating legally. The MHRA has issued repeated warnings about counterfeit weight-loss pens sold through social media and unregulated sites, and enforcement action in 2025 included the seizure of around 20 million doses of illegally traded weight-loss medicines (approximately £45 million in street value), as well as the discovery of a counterfeit tirzepatide manufacturing site in the UK. Fake pens have been found to contain insulin rather than the stated medicine, a serious risk.

Every legitimate online pharmacy dispensing prescription medicines in the UK must be registered with the GPhC. You can verify nume's GPhC registration (number 9012878) directly on the pharmacy register. For any other provider you are considering, run the same check at pharmacyregulation.org/registers before sharing any health information or payment details. Red flags include sellers who advertise without mentioning a prescription, prices that look dramatically lower than the market, and any site offering a discount code for a Prescription-Only Medicine. If you encounter a suspicious seller, you can report them via the MHRA's Yellow Card scheme.

Further detail on sourcing this medicine safely is covered in our guide to where to buy a semaglutide injection in the UK, and if you want a broader look at your options, our page on where to buy semaglutide injections walks through the landscape in plain terms.

Third: does semaglutide fit your clinical picture?

Wegovy is licensed for adults with a BMI of 30 or above, or 27 or above when a weight-related health condition is also present, for example, high blood pressure, high cholesterol, or type 2 diabetes. Lower thresholds apply for some ethnic backgrounds under UK clinical guidance. Meeting those numbers is the starting point, not the finishing line. A prescriber will also consider your full medical history, any medicines you currently take, and conditions that would make this treatment unsuitable, including pregnancy, breastfeeding, or actively trying to conceive, in which case it is not recommended. It is not licensed for under-18s.

At nume, the consultation covers all of this. There is identity verification, live weight confirmation, and a check of your Summary Care Record where appropriate. Prescription approval is never automatic; clinical suitability is the gate. If you want to understand the eligibility picture in more detail before you start, our weight-loss treatment overview is a useful reference. You can also read about how the Wegovy prescription process works in practice.

Treatment begins at a low dose and is titrated gradually, the schedule is there to help your body adjust, not to delay results. Exact dosing and any changes to your schedule are decisions made with your prescriber, not something to manage from a package insert alone. That clinical relationship, available through aftercare seven days a week, is part of what you are paying for. If you would like to buy Wegovy injections through a regulated pharmacy, or prefer to buy Wegovy direct without a GP referral, both routes are available at nume once your consultation confirms you are suitable.

Starting your consultation with nume

Once you decide that private supply is the right route, the process at nume is straightforward. Fill in your free consultation online, our prescribers see it the same day. If you are clinically suitable, your prescription is written, your order is dispensed from our GPhC-registered pharmacy, and it leaves the same day if your consultation is completed before 12pm on a working day. DPD delivers the next working day, tracked, in packaging that gives nothing away about what is inside.

There are no subscriptions and no auto-renewals. Every repeat order goes through a fresh clinical review. The price you see on the treatment page covers the consultation, the prescription, the medicine, and the delivery, nothing is invoiced separately afterward. If you have questions before you start, our FAQs page covers the most common ones, and our support team is reachable seven days a week. Our clinical team's background and approach is also outlined on the clinical team profile. Patients who prefer to buy semaglutide injections online will find full details of how that process works, from consultation through to delivery, across our treatment pages.

When you are ready, speak to our prescribers by starting your free consultation.