What strength of Wegovy actually works — and how does the dose ladder get you there?

Step 1: the starting dose exists for one reason only

Wegovy always begins at 0.25mg weekly. At that level, the appetite-suppressing effect is minimal, the body is simply adjusting to semaglutide, a GLP-1 receptor agonist that slows gastric emptying and changes hunger signals. Starting low dramatically reduces the nausea, vomiting and other gastrointestinal effects that catch people off guard at higher doses. Think of it less as treatment and more as an introduction: the medicine meeting your system before either of them commits.

A question our prescribers hear most weeks is whether the starter dose is supposed to produce weight loss. It sometimes does, modestly. But its job is settling tolerance, not shifting weight. Patients who try to skip ahead almost always regret it. The discomfort at too high a dose, too soon, is the main reason people abandon treatment that would otherwise have worked.

After roughly four weeks on 0.25mg, your prescriber will assess how you have responded before moving to the next rung. This is a clinical conversation, not a countdown timer. If side effects are still disruptive, they may hold the dose or move up more slowly. The full Wegovy dose schedule covers every step in more detail.

Step 2: the middle doses, where most of the titration happens

The licensed schedule after the starter dose moves through 0.5mg, then 1.0mg, then 1.7mg, each held for approximately four weeks. These increments matter. Each increase asks the body to process a larger amount of semaglutide, and the window between them gives your system enough time to adapt before the next adjustment. Rushing through them does not speed up results; it raises the chance of side effects that prompt a dose reduction anyway.

Real weight loss typically becomes more noticeable in this middle band. Appetite tends to settle into a new register, portions that felt automatic before now feel like a choice. This is what the STEP 1 trial captured: participants on semaglutide 2.4mg lost an average of around 15% of body weight over 68 weeks, as published in the New England Journal of Medicine (STEP 1, 2021). That result came at the end of a full titration, not at week four on 0.5mg.

Your prescriber may also consider how your weight-related conditions are responding, not just the number on the scale. That clinical picture shapes whether and when you move up. If you are trying to understand what strength of Wegovy you actually need and how the licensed dose range compares across the two main injectable treatments, the specifics are set out clearly in our guide.

Step 3: reaching and staying at the maintenance dose

The standard maintenance dose for Wegovy has long been 2.4mg weekly. For most people who reach it, this is where the majority of weight loss occurs and stabilises. The MHRA's approval in April 2026 of a dedicated 7.2mg single-dose pen extended the ceiling further: trials at that dose reported roughly 20.7% average weight loss over 72 weeks, narrowing the gap to tirzepatide 15mg results. That pen is licensed for adults with BMI of 30 or above, and the path to it still begins at 0.25mg, titration cannot be bypassed.

The NHS semaglutide medicines page outlines the doses and the general side-effect profile clearly. Common effects at maintenance (nausea, constipation, reflux) are typically less intense than during titration, though they do not disappear for everyone. Staying well-hydrated and eating smaller, lower-fat meals helps most people manage them.

NICE guidance for semaglutide notes that if less than 5% weight loss has occurred after six months at the highest tolerated dose, continuing should be reviewed. That is not a failure, it is a prompt to reassess whether the current approach is the right one for you, which is exactly what clinical oversight is for. The weight-loss treatment overview explains how prescribers at nume approach that kind of review.

What affects which strength ends up working for you

Several things shape the dose at which you stabilise. Tolerance is the biggest. Some people manage the full titration to 2.4mg or beyond without significant disruption; others find a lower maintenance dose is the right balance between results and quality of life. Neither outcome reflects willpower or effort, it reflects individual physiology.

Concurrent medicines can also be relevant, particularly oral contraceptives: tirzepatide users are advised to add a non-oral method during the first four weeks of treatment and after each dose increase, given the potential for reduced pill absorption. The same concern is not established for semaglutide, but any interaction question belongs in the consultation. A note on cost sits here too: the Wegovy cost context page explains why prices vary across providers and what a transparent private prescription actually covers.

The honest answer to what Wegovy dose actually works for most people is: the highest dose your body accepts, reached properly, held long enough to produce a sustained effect, with a prescriber watching the whole process. If you want to find out which doses you might be eligible for, check your eligibility with our prescribers, it starts with a free consultation.