Stepping Up to the 7.5mg Mounjaro Dose: What Buying It Actually Involves

The myth worth correcting first: stepping up is not a reorder

A widespread assumption among people moving through the Mounjaro schedule is that going from 5mg to 7.5mg is just a click to reorder at a higher strength. It isn't, and any pharmacy that treats it that way is skipping a step that matters clinically. Each dose increase needs its own assessment. A prescriber needs to know how your body responded at 5mg, whether side effects settled, whether weight loss is progressing, whether there are any new health factors in the picture. That assessment is the legal and clinical prerequisite for issuing a new prescription at a higher dose.

This is not a bureaucratic hurdle. The titration schedule exists because the 2.5mg starting pen is there purely to let your system adjust; 5mg is where therapeutic effect typically begins; and 7.5mg is a meaningful step up in appetite suppression for most people. Jumping ahead, or sourcing a pen at a strength your prescriber hasn't reviewed you for, carries real risk. The NHS tirzepatide medicines page is clear that dose changes should be guided by your prescriber. If you're curious about what the 10mg step looks like further down the line, the 10mg step-up page covers that process separately.

The only legal route to 7.5mg Mounjaro in the UK

Mounjaro is a Prescription-Only Medicine under the Human Medicines Regulations 2012. The route is fixed: a prescriber assesses you, decides whether the step-up is appropriate, and issues a prescription; a GPhC-registered pharmacy dispenses against that prescription. There is no other lawful path. Sellers offering Mounjaro at any dose without a prior consultation are operating outside the law, and the MHRA's Yellow Card scheme is where you can report anyone doing so.

Fake Mounjaro pens are a documented problem in the UK. The MHRA has seized large quantities of counterfeit weight-loss pens (some containing insulin rather than tirzepatide) and in late 2025 raided the first known UK site manufacturing counterfeit tirzepatide pens. A quick, one-minute check anyone can do: look up any online pharmacy on the GPhC register before placing an order. A legitimate pharmacy has a premises registration number you can verify there instantly. If you can't find it, stop.

At nume, our GPhC premises registration is 9012878. Medicines come through the licensed UK supply chain, which means genuine Eli Lilly product every time. Our about us page sets out how the pharmacy operates if you want the detail.

How the 7.5mg step-up works through nume, step by step

The process is straightforward. You submit a consultation detailing your progress at 5mg, weight, side-effect experience, any relevant health changes. A GPhC-registered prescriber reads it the same day and decides whether 7.5mg is the right next step for you. If it is, you can buy your 7.5mg Mounjaro pen once the prescription is issued and the order goes straight to our dispensary. If it isn't (because the clinical picture suggests staying at 5mg longer, or because something needs follow-up) you'll hear why.

Once approved and ordered by 12pm on a working day, your 7.5mg pen is dispatched the same day. DPD delivers it free the next working day. You don't pay separately for the consultation, the prescription, or the delivery. There are no subscriptions and no automatic renewals; every repeat is reviewed by a prescriber before it goes out. For specific information on stock and format for this strength, the 7.5mg availability page has current detail. And if you're at an earlier stage and want context on the 5mg pen first, the 5mg step-up page is a useful reference.

Who is likely to be suitable for the 7.5mg step

Broadly, tirzepatide is licensed for adults with a BMI of 30 or above, or 27 and above alongside a weight-related condition such as high blood pressure, high cholesterol, type 2 diabetes or obstructive sleep apnoea. Lower BMI thresholds can apply for some ethnic backgrounds under UK clinical guidance. At 7.5mg specifically, the clinical expectation is that you've completed at least four weeks at 5mg and tolerated it reasonably well. BMI alone doesn't determine the decision, the prescriber weighs the whole picture, including how treatment is going.

For a fuller view of the eligibility landscape, the Mounjaro overview page covers the licensed criteria in detail. NICE's recommendation for tirzepatide (TA1026) sets out the NHS criteria, which are more restrictive than the licensed indications; private treatment through a regulated pharmacy like nume follows the licensed indications assessed on an individual basis. Children and young people under 18 are not licensed for this treatment. Mounjaro is not recommended during pregnancy, while breastfeeding, or if you're actively trying to conceive, your prescriber will ask about this. If you're already planning ahead to the next stage of the titration schedule, the 12.5mg step-up page explains what that assessment involves when you get there.

If you're ready to check whether 7.5mg is the right next step for you, start with a free consultation through our treatment page. There's no obligation, and a prescriber will give you a clear answer the same day.