Missing 2 weeks of Wegovy: what actually happens and what to do next

Picture the moment you realise you're two weeks behind

It's a Thursday evening. You open the fridge and notice the Wegovy pen sitting exactly where you left it, untouched for a fortnight. Maybe a work trip ran long. Maybe your delivery was delayed. Maybe you were unwell and it slipped. Whatever the reason, you're now two injections short, and the question is whether you just pick up where you left off or whether something needs to change.

The short answer is that jumping straight back to the dose you were on carries real risks. Semaglutide works by gradually raising the level of GLP-1 receptor activity in your system. That level has fallen during the gap. Reintroducing a higher dose too quickly is likely to produce the same nausea, vomiting and stomach discomfort that the slow titration schedule was designed to avoid in the first place. The NHS patient information for semaglutide is clear that a missed dose should only be taken if the next scheduled injection is still more than five days away, and that guidance covers a single missed week, not two.

For a two-week absence, the clinical position is more cautious still. Your prescriber is the person who can look at your dose history, your tolerability record and how you're feeling right now, and make the call on where to restart. That conversation matters more than any rule of thumb.

What the two-week gap does to semaglutide levels in practice

Semaglutide has a half-life of approximately one week. After one missed dose, around half of your steady-state concentration remains. After two missed doses, that figure roughly halves again. In practical terms, by the time two weeks have passed, the appetite-suppressing and blood-sugar-modulating effects that had built up over your titration period are substantially reduced, in some cases close to baseline.

This matters for two reasons. First, you may notice your hunger returning more forcefully in the days before you restart, which can be distressing if you'd been doing well. That's a physiological response, not a failure of willpower. Second, restarting at a high dose into a system that has largely cleared the drug is the scenario most likely to produce significant gastrointestinal side effects. NHS England's guidance on weight management injections reinforces that dose adjustments after interruptions should be guided by a healthcare professional.

If you were only a few weeks into titration when the gap happened, the restart is usually straightforward, your prescriber may simply take you back to the beginning of the schedule. If you were well established on a higher maintenance dose, they may recommend returning to an intermediate dose for a week or two before stepping back up. The Wegovy treatment overview on this site explains how the titration schedule works from the start, which is helpful context.

Practical steps while you wait to speak to your prescriber

Don't inject anything until you've had clinical guidance. That's the clearest practical advice available here. Contact whoever manages your prescription (your GP, your specialist, or the prescribing team at your online pharmacy) and explain the gap. They'll want to know: the date of your last injection, the dose you were on, whether you experienced any side effects before the break, and whether anything else has changed in your health since then.

While you wait for that conversation, a few things are worth knowing. Your appetite will likely feel more intense than it did on treatment. Keeping meals regular, staying hydrated and not skipping protein will help you manage that period without swinging into patterns that make the restart harder. These aren't substitutes for the medicine; they're just practical support while the clinical picture is being sorted.

If you're thinking about the cost implications of an interrupted supply (whether you need a new pen at a lower dose, or what restarting actually costs) the Wegovy price comparison page covers what private treatment typically involves. Worth reading alongside your prescriber's advice rather than instead of it.

Separately, if you've been wondering whether it's ok to miss a week of Wegovy, the answer is yes, a single missed dose is handled differently from two, and the threshold changes how you restart. The guidance on missing one week of Wegovy covers that scenario specifically, and the step-by-step guide on what to do after a missed Wegovy shot is a useful companion to this page.

Getting back on track with proper clinical support

The thing most people want to know after a two-week break is whether the progress they made is lost. Some of it may have reversed (weight can return when appetite rebounds) but the clinical evidence suggests that restarting treatment and re-establishing the right dose tends to recover that ground over time. If you are still working out whether you can miss a week of Wegovy without consequences, that page goes into the specific circumstances where a short gap is less of a concern. Treatment interruptions happen. What matters is that the restart is managed safely rather than rushed.

At nume, every repeat order and every dose change goes through the same process: a real prescriber reviews your current picture before anything is dispensed. Not a form that auto-approves. A qualified clinician, the same day. When your Wegovy pen does arrive (tracked by DPD, in a plain box with no branding) you'll have a clear, personalised plan for using it, not just a general schedule.

If you're currently mid-gap and unsure of your next step, the most useful thing you can do right now is speak to a prescriber. You can start a free consultation with our clinical team and get a same-day review of your situation. Our clinical lead's profile is there if you'd like to know more about who reviews these cases. And if you have questions that don't fit neatly into a consultation form, the contact page is the right place to reach us.