Semaglutide 5mg injection: is this the dose you should be on?

Why there is no semaglutide 5mg injection, and where the confusion comes from

The most common reason someone lands on this search is a mix-up between two different medicines. Wegovy is semaglutide; its doses are measured in milligrams of the active ingredient per weekly injection, and they go 0.25, 0.5, 1.0, 1.7, and 2.4mg, with 7.2mg as the highest level now available. None of those is 5mg.

Mounjaro, by contrast, uses tirzepatide (a different molecule entirely, a dual GIP and GLP-1 receptor agonist rather than a GLP-1-only medicine) and it does come in a 5mg pen. The two medicines work on related but distinct receptor pathways, have different clinical trial results, and are not interchangeable. If you want a side-by-side look at how Wegovy's doses compare across the schedule, the Wegovy injection dosage chart sets them out clearly.

It is also worth knowing that Ozempic (another semaglutide brand) uses doses of 0.5mg, 1mg and 2mg, but it is licensed for type 2 diabetes, not weight management. Rybelsus (oral semaglutide) uses 3mg, 7mg and 14mg. Neither of those is a weight-loss product, and neither is the same as Wegovy. The milligram figures crop up across several medicines in this class, which is exactly why specifics matter so much when you are reading about doses online.

What the Wegovy titration schedule is actually deciding for you

A question our prescribers hear most weeks is some version of: "can I just stay on a lower dose, or skip ahead faster?" It is a fair question. The titration schedule can feel arbitrary from the outside, but it is built around tolerability, not caution for its own sake.

Semaglutide slows gastric emptying and reduces appetite through GLP-1 receptor activity. Both effects are dose-dependent, which means they are more pronounced at higher doses, and so are the nausea, vomiting, and other gastrointestinal symptoms that many people notice early in treatment. Starting at 0.25mg and moving up in roughly four-week steps gives your body time to adjust at each level before the dose climbs again. The first dose of Wegovy side effects page covers what to expect when you begin.

The NHS medicines page for semaglutide on NHS.co.uk sets out the licensed dose sequence and explains when dose changes are typically considered. Your prescriber applies those principles to your specific situation, how you are tolerating the current dose, how your weight is responding, and whether there are any clinical reasons to hold rather than increase. That assessment happens before every repeat supply at a regulated service, not just at the start.

If the 2.4mg maintenance dose is the standard endpoint, how semaglutide injection dosing works for weight loss explains the reasoning behind the full journey in more detail.

The 7.2mg dose: what changed and who it applies to

On 14 April 2026 the MHRA approved a dedicated single-dose 7.2mg Wegovy pen (one pre-set weekly injection) for adults with a BMI of 30 or above. This is the highest Wegovy dose now licensed in the UK and is only for the weight management indication; it does not apply to the cardiovascular use of semaglutide. The starting dose remains 0.25mg regardless of where a patient eventually ends up, and titration still follows the same step-by-step approach under prescriber guidance.

Clinical trial data for the 7.2mg dose reported average weight loss of around 20.7% over 72 weeks, which narrows the gap with tirzepatide 15mg results seen in the SURMOUNT-5 head-to-head trial published in the New England Journal of Medicine in 2025. That trial compared the two medicines directly in adults with obesity and no diabetes, finding tirzepatide produced greater average weight loss. Whether the 7.2mg dose changes your own clinical picture is a conversation for your prescriber, not a conclusion to draw from trial averages. You can read more about the full range of Wegovy doses and what differentiates each step.

For context on what treatment costs at different stages, the Wegovy price comparison page explains what a legitimate private prescription typically includes and what to watch out for when prices look unusually low.

Making a dose decision with a prescriber, not around one

The practical upshot of all of this is that the question "should I be on a 5mg semaglutide injection?" resolves into two simpler ones. First: are you thinking of semaglutide (Wegovy) or tirzepatide (Mounjaro)? If semaglutide, there is no 5mg option. If tirzepatide, 5mg is a real dose, and how higher semaglutide doses compare may help you understand the wider landscape before your consultation.

Second: whatever medicine you are considering, dose selection is not a decision made by the patient alone. The guide to semaglutide injection dosage runs through the full picture in plain terms. The broader Wegovy treatment overview covers eligibility, how the medicine works, and what to expect from a clinical assessment. Both are worth reading before you speak to anyone.

At nume, every consultation is personally read by a GPhC-registered Independent Prescriber. A real clinician reviews your answers the same day, not software routing you through a checklist. If you would like to explore whether Wegovy or another licensed treatment is appropriate for you, our team is the right place to start that conversation. You can find out more about our clinical approach on the clinical team page, or browse the full range of options we support on the weight-loss treatments overview.

Ready to take the first step? Speak to our prescribers through a free consultation, no waiting list, no referral needed, reviewed the same day.