Can You Skip a Wegovy Dose — and What Happens If You Do?

What the licensed guidance actually says about a missed Wegovy injection

The titration schedule for Wegovy, as approved by the MHRA and described in the SmPC, is built around a once-weekly injection that keeps plasma semaglutide levels stable between doses. The NHS medicines page for semaglutide makes the recovery rule explicit: if you remember within five days of the missed injection, take it and then return to your usual weekly day. If more than five days have passed, leave it and inject on your next scheduled day as normal.

The five-day threshold exists because semaglutide has a half-life of roughly one week, meaning concentrations fall meaningfully but slowly. Within five days there is still enough overlap to absorb the missed dose without your system treating it as a restart. Beyond five days the gap becomes large enough that administering the missed dose and then injecting again a day or two later would effectively give you two doses in quick succession, which the prescribing guidance specifically cautions against.

One practical check worth building into your routine: before you put the pen away each week, note the injection day in your phone calendar with a reminder. That ten-second habit means you are unlikely to lose track of where you are in the schedule, and if a dose is late you know immediately whether you are inside or outside the five-day window.

Why skipping doses disrupts more than just weight loss progress

Evidence from the STEP programme, including the STEP 1 trial published in the New England Journal of Medicine, shows that semaglutide's effect on appetite and body weight is tied to sustained exposure at therapeutic levels. When doses are missed regularly, blood levels fall below the range where appetite suppression is consistent. People often notice hunger returning more strongly than expected in the days that follow.

There is a tolerability dimension too. GI side effects (nausea, loose stools, indigestion) are most common at the start of treatment and after dose increases, partly because the body is adjusting to higher semaglutide concentrations. If a prolonged gap means your next dose arrives when levels are lower than usual, it can land with a sharper effect on the gut than a dose taken on schedule would. This is not universal, but it is a recognised pattern that prescribers flag when patients return after a break.

For anyone wondering about the effects of missing a full week rather than a few days, there is more detail on what happens when you skip a week of Wegovy, including how longer gaps are typically managed.

The difference between an accidental miss and deliberate skipping

An occasional missed dose (travel disruption, a pen left at home, a delivery delay) is a normal part of real-world treatment and the five-day rule handles it cleanly. Deliberately skipping doses is a separate question and worth examining honestly.

Some people consider skipping because of side effects, cost, or a feeling that the medicine is no longer needed. Each of these has a better answer than quietly missing injections. If side effects are the driver, your prescriber can consider pausing at the current dose rather than escalating, or other adjustments that sit within the clinical plan. If you are thinking about stopping or pausing for a holiday, there is specific guidance worth reading on managing Wegovy around a holiday, and it is also worth reading through whether skipping a week of Wegovy is ever appropriate before making that call.

On the question of cost and access, the private prescription route for Wegovy is worth understanding fully, including what is included in a compliant provider's price. Cutting costs by stretching a pen further than its licensed schedule is not a clinically sound approach and is not something prescribers would advise.

Wegovy is a prescription medicine that requires clinical oversight at every stage. If your circumstances have changed and your current schedule no longer feels workable, the right step is to raise that with your prescribing team. At nume, that conversation is available through our aftercare team seven days a week, you are not expected to manage gaps on your own. To explore what a supervised Wegovy programme looks like, speak to our prescribers and find out whether it suits your situation.

When a missed dose is part of a bigger pattern to flag

If you find yourself regularly missing doses (whether through forgetfulness, injecting anxiety, or a feeling that the schedule is unmanageable) that is something a prescriber needs to know. Not because it reflects badly on you, but because the clinical plan should reflect how treatment is actually going, not how it looked on paper at the start.

There is also a small group of people for whom the weekly injection format itself is a barrier. The Wegovy overview page covers the full range of what the treatment involves, and our FAQs address a number of the practical concerns that come up most often. For anyone curious about the dosing ladder itself (the sequence from 0.25mg through to the maintenance dose) there is a clear breakdown on the Wegovy doses page.

Missing one dose occasionally will not undo a course of treatment. What matters is how you handle it: follow the five-day rule, do not double up, and keep your prescriber informed if it is becoming a pattern.