How to ask your doctor for weight loss injections — and what to expect

What the official guidance says, and why it matters for your conversation

When you sit down with your GP, it helps to arrive with at least a rough sense of the NICE framework rather than leaving them to explain it from scratch. NICE's appraisal of tirzepatide (TA1026) recommends it for adults with a BMI of 35 or above who also have at least one weight-related condition, for example, high blood pressure, type 2 diabetes, dyslipidaemia, obstructive sleep apnoea or cardiovascular disease. Lower BMI thresholds apply for South Asian, Chinese, Middle Eastern, Black African or African-Caribbean backgrounds. For semaglutide (Wegovy), the NICE recommendation requires the medicine to be used within a specialist weight management service, which is why referral is often the first step your GP takes rather than an immediate prescription.

NHS England's current phased rollout means the precise qualifying criteria shift over time. As of summer 2026, GP practices may prescribe tirzepatide under the 2026/27 QOF contract, but participation is optional, your practice might not be signed up yet. That is not a dead end; it is just useful context. Go in knowing your BMI, your relevant conditions and any previous attempts at weight management. That information moves the consultation forward quickly.

One practical check you can do in under a minute: search your practice's name on the NHS website to confirm they offer weight management services or speak to their reception before booking, so you know in advance whether to ask for a referral or a prescription appointment.

How to frame the conversation with your GP

GPs respond well to specific, clinical language. Rather than saying "I want those injections I've seen online", try something closer to: "I've been managing my weight for some time and I'd like to discuss whether I meet the NICE criteria for tirzepatide or semaglutide." That framing signals you have done your research and are approaching this as a health decision, not a cosmetic one. The NHS patient information on tirzepatide is a credible source to cite if your doctor asks what prompted the conversation.

Bring a brief weight history if you can: what you have tried, for how long, and what happened. Doctors are more likely to consider these medicines when there is evidence of sustained effort. Mention any relevant conditions, even ones that feel unrelated, such as joint pain or disrupted sleep, since obstructive sleep apnoea and osteoarthritis are both weight-related conditions that may support your case. Be honest about medications you already take, since a few common drugs interact with the slower gastric emptying these medicines cause.

If your GP declines and does not explain why, ask directly which criterion you do not currently meet, and if you want to feel more prepared before that conversation, our guide on how to ask for weight loss injections walks through the language and approach that tends to work well. That gives you something concrete to address, whether that is reaching a particular BMI threshold or getting a comorbidity formally documented. For a fuller picture of the clinical factors doctors weigh up, this overview of what doctors consider when prescribing weight loss injections covers the ground in detail.

When the NHS route has a waiting list, or your practice is not yet prescribing

NHS waiting lists for specialist weight management services, where Wegovy is prescribed, can run to many months. GP prescribing of tirzepatide under the new contract is rolling out gradually, and not every practice will be ready immediately. Neither situation means you are stuck. A private route through a GPhC-registered online pharmacy involves the same clinical assessment (a prescriber reviews your medical history, current conditions and BMI) but without a referral or waiting list. The consultation is free, your medical answers are reviewed by a GPhC-registered Independent Prescriber, and if you are found clinically suitable the medicine is dispensed from a regulated UK pharmacy.

If you are unsure whether you can simply request these treatments directly, our page on asking your doctor for weight loss injections explains exactly how that conversation can work and what to expect. If you are wondering specifically whether your GP is obliged to discuss these options with you, this page on whether you can get weight loss injections from your doctor addresses that question directly. And for a broader look at the medicines themselves before you decide anything, our guide to weight loss injections covers how they work, what the evidence shows and who they are licensed for.

The private pharmacy route: what clinical review looks like

Some people arrive at a private consultation after their GP conversation; others start there because they already know the NHS criteria do not apply to them yet. Either way, the clinical process at a regulated pharmacy is substantive. At nume, every consultation is read by a named prescriber on the same day, not processed by an automated system. We ask about your weight history, current medications, relevant medical conditions and lifestyle. Identity and weight are verified. If a prescriber judges you clinically suitable, treatment is dispensed from our GPhC-registered UK pharmacy and delivered free the next working day by DPD, tracked to your door in plain packaging.

For context on what the private cost covers (and what to look for in a service) our treatment page sets out exactly what is included in a single transparent price. There are no subscription commitments and no auto-renewals; each repeat order is clinically reviewed again. If you want to read more about our clinical team and how prescribing decisions are made, our overview of weight loss injections from a doctor explains how the prescribing process works at each stage. And if a question has come up in your research that you have not found answered, our FAQs cover the queries we hear most often from people at exactly this stage.