Can you buy Mounjaro without notifying your GP?

Step 1: Understand the legal requirement (and the common misconception)

A lot of people searching for Mounjaro assume that going private means bypassing clinical oversight entirely. It does not. Tirzepatide is a Prescription-Only Medicine under the Human Medicines Regulations 2012, meaning a prescriber must assess you and issue a prescription before any legitimate pharmacy can dispense it. What you are skipping by going private is the NHS referral pathway, the waiting list, and the requirement to meet the specific NHS cohort criteria. The clinical assessment itself is non-negotiable.

That distinction matters practically. If a seller is offering Mounjaro without any clinical consultation, they are operating outside UK law. The MHRA has been explicit about this: a wave of enforcement action through 2025 uncovered roughly 20 million doses of illegally traded weight-loss medicines worth around £45 million, including the first UK site manufacturing counterfeit tirzepatide pens. Some fake pens seized in earlier operations were found to contain insulin. You can report suspected illegal sellers to the MHRA via the Yellow Card scheme.

Going private legitimately means your consultation is handled by a regulated prescriber, your medicine comes through the licensed UK supply chain, and you have a clinical relationship if anything concerns you later. That is the process at nume.

Step 2: Complete a clinical consultation with a registered prescriber

At nume, the process begins with a free online consultation covering your health history, current medications, weight and relevant conditions. There are no trick questions; the prescriber is building an accurate clinical picture. Every answer goes to a named, GPhC-registered Independent Prescriber who reads it the same day. If you are transferring from another provider, you will be asked for evidence of your current dose, because responsible prescribers do not guess.

Eligibility for licensed Mounjaro treatment is broadly: adults with a BMI of 30 or above, or 27 or above with at least one weight-related condition such as high blood pressure, high cholesterol, prediabetes, type 2 diabetes, or obstructive sleep apnoea. Lower BMI thresholds apply for some ethnic backgrounds under UK guidance. BMI alone does not determine suitability; the prescriber considers the whole picture, including any contraindications.

Once approved, a prescription is issued and your order moves immediately to dispensing. There is no additional prescription fee, no separate delivery charge, and if you are wondering whether you can buy Mounjaro without a subscription, the answer is yes, there is no membership to sign up for. If you do not have diabetes, that is perfectly fine: the UK weight-management licence does not require it.

Step 3: Verify the pharmacy before you hand over anything

This step is worth doing for any online pharmacy, not just nume. The GPhC (General Pharmaceutical Council) maintains a public register of every legitimate registered pharmacy in the UK. You can search it at pharmacyregulation.org, nume's registration number is 9012878. If a pharmacy is not on that register, do not order from it, regardless of the price or the branding.

Red flags include: prices dramatically below current market rates, no mention of a prescribing process, offers of Mounjaro without a prescription alongside discount codes from sources you cannot verify, and delivery from outside the UK. The MHRA's Drug Safety Update communications set out the risks in clinical detail. A small saving on a counterfeit pen is not a saving at all.

Once you have confirmed a pharmacy is GPhC-registered and that your consultation has been reviewed and approved, your treatment is dispatched. At nume, orders confirmed before 12pm on a working day are sent the same day and delivered free by DPD the next working day, tracked to your door. More about ordering Mounjaro online is covered on a dedicated page if you want to compare the process in detail.

What about telling your GP?

There is no legal obligation for a patient to notify their GP before starting private treatment. Full stop. However, good clinical practice strongly supports it, and at nume this is built into the process: our prescribers follow GPhC guidance on GP notification, which means informing your GP as part of responsible clinical care. This is for your benefit. Your GP holds your wider medical history, manages other medications you may take, and needs to know about weight-loss treatment if any future prescribing decisions hinge on it.

The NHS's patient guidance on tirzepatide makes clear that people sometimes ask whether they can access tirzepatide without going through a prescriber, but this is a medicine taken alongside a reduced-calorie diet and increased physical activity, not instead of ongoing general health care. Keeping your GP in the picture is simply sensible medicine. At nume, we handle that notification, so you do not have to navigate an awkward conversation, it goes from us to them, clinically and professionally.

If you have further questions about the process, our FAQs cover the most common ones, and our aftercare team is available seven days a week.