What dosage of Wegovy do you need to lose weight?

The myth worth correcting: more dose from the start does not mean faster results

A lot of people come to Wegovy expecting to be prescribed the highest dose straight away and get moving quickly. It is an understandable assumption, if the goal is 2.4 mg, why spend months at 0.25 mg? The answer is that the lower doses are doing a specific job: settling your gut, letting your body adjust to the way semaglutide slows gastric emptying. Skipping that adjustment period does not speed up fat loss; it typically means nausea and vomiting that forces you to drop back down anyway.

The titration schedule is not a formality. It is built into how the medicine works, and the NHS guidance on semaglutide is explicit that the starting doses are for tolerability rather than therapeutic effect. Letting that idea go (that faster is better with Wegovy) tends to make the whole experience considerably smoother.

The practical upshot: expect to spend roughly four weeks at each stage before your prescriber considers a step up. For most people, that means around four to five months before reaching the 2.4 mg maintenance dose, and longer if you need extra time at any rung. That timeline is normal, not a sign something has gone wrong. You can find a fuller breakdown of the schedule on our Wegovy dosage page.

What the standard schedule looks like, from first injection to maintenance

The licensed titration for Wegovy injection in the UK runs in five stages. You begin at 0.25 mg weekly for four weeks, then move to 0.5 mg for another four weeks. From there, the steps go: 1.0 mg, then 1.7 mg, and finally the 2.4 mg maintenance dose. Each level lasts a minimum of four weeks, and how many doses it actually takes to reach your maintenance level depends entirely on how comfortably your body handles each increase.

Weight loss tends to become more noticeable from 1.0 mg onward, once appetite suppression is working more consistently. The STEP 1 trial, published in the New England Journal of Medicine, reported an average reduction of around 15% of body weight over 68 weeks at the 2.4 mg dose, in adults without diabetes. That figure comes from a controlled trial with lifestyle support alongside the medicine, it is the best available evidence for what the standard maintenance dose can achieve, not a guarantee for any individual.

If you are curious about how results differ across doses, our page on which Wegovy dose produces the most weight loss goes into the evidence in more detail. The short answer is that higher doses generally produce greater average loss, but individual responses vary considerably.

The 7.2 mg dose: what changed in April 2026

In April 2026 the MHRA approved a dedicated single-dose 7.2 mg Wegovy pen, one pre-set weekly injection, with an auto-dosing mechanism and a covered needle that locks after use. This approval is specifically for adults with a BMI of 30 or above; it does not extend to lower BMI thresholds or to Wegovy's cardiovascular indication. You can read the official announcement on GOV.UK.

Trial data at 7.2 mg reported an average of around 20.7% weight loss over 72 weeks, narrowing the gap with tirzepatide (Mounjaro) that had been the headline comparison between the two medicines. The titration route to 7.2 mg still starts at 0.25 mg; the higher ceiling does not change the approach to getting there. Whether 7.2 mg is the right target for a given patient, and whether that pen format is confirmed as available, is part of the prescriber conversation. Our overview of all current Wegovy doses covers the full picture including this newer option.

One practical note: the dosage considerations for weight loss specifically are slightly different from diabetes contexts where semaglutide also appears, the doses, indications and medicines involved are not interchangeable, and a prescriber will be clear about which licence and which schedule applies to you.

What a prescriber actually looks at when choosing your dose

Your starting dose with Wegovy is not negotiable, everyone begins at 0.25 mg per the licensed schedule. What is clinical judgement is whether you move up on the standard four-week cadence, whether you stay longer at a particular level because of side effects, and whether 2.4 mg or 7.2 mg is ultimately appropriate. Prescribers also consider your weight-related conditions, any medicines you take that could interact, and how your body has responded to treatment so far.

For a thorough introduction to the medicine itself (how semaglutide works, what the UK licence covers, and what to expect month by month) the Wegovy overview page pulls all of that together. If you are at the stage of thinking about where to access treatment, where to buy Wegovy in the UK explains the legal routes, including how private online pharmacies fit into the picture and what to check before trusting one.

Our weight-loss treatment overview is also a useful read if you are still deciding whether Wegovy is the right option given your circumstances. When you are ready to talk through your own situation, speak to our prescribers through a free consultation, a real clinician reads your answers the same day and can walk you through what dose journey looks like for you specifically.