Missing a Week of Wegovy: What It Means and What to Do

You noticed on a Friday that you forgot Monday's injection

It happens more often than most people admit. The pen is in the fridge door, Mondays are chaotic, and it has been sitting there untouched since last week. The first thing to establish is the gap. Wegovy is injected once a week, and the medicine's half-life means a meaningful amount remains active in your body for several days after a scheduled dose. For that reason, the NHS advises taking the missed injection as soon as you remember, provided your next scheduled dose is still more than five days away. If fewer than five days remain before that next dose, skip the missed one and resume your normal weekly schedule. Do not take two injections in the same week to catch up.

This guidance applies regardless of which dose level you are on. Whether you are earlier in the titration schedule or have been stable on the 2.4mg maintenance dose for months, the approach to a single missed week is the same. If you want a fuller explanation of what one skipped dose actually means for your treatment, our page on whether it is ok to miss a week of Wegovy walks through the clinical reasoning in detail. Semaglutide clears slowly enough that one missed dose is unlikely to cause a significant clinical setback, though you may feel the difference in appetite and fullness before your next injection arrives.

Our frequently asked questions cover a range of situations that come up during treatment, including what to do if your pen is delayed in transit.

What your body actually experiences during the missed week

Semaglutide works by activating GLP-1 receptors involved in appetite signalling and the rate at which food leaves your stomach. Those effects do not switch off the moment you miss a dose, but they do gradually diminish. Most people find that by day five or six of a missed week, hunger returns with more insistence, and the full feeling after a small meal is less reliable. That is simply the medicine clearing, not a sign of treatment failure.

Some people in this situation eat more than usual for a few days. That is worth being aware of, not alarmed by. Returning to your regular injection schedule the following week is generally enough to re-establish the pattern. If you find yourself repeatedly missing doses for practical reasons, a conversation about whether your injection day suits your routine could make a real difference. Our clinical team hear this regularly and can help you work out a schedule that fits your week.

The NHS England guidance on weight management injections also notes that lifestyle support alongside medication matters; a temporary dip in the medicine's effect is a useful reminder of how much the behavioural side of treatment contributes day to day.

When a missed week turns into a longer break

A single missed injection is a minor event. A break of several weeks is something different. This can happen for several reasons: a planned holiday, a shortage of supply, illness, or simply life getting in the way. Semaglutide accumulates to steady-state concentrations over several weeks of regular dosing, and stopping for a prolonged period means restarting from a lower baseline of drug exposure. For some people, that means restarting at a lower dose to allow the gastrointestinal system to readjust, much as the titration schedule does at the start of treatment.

There is no universal rule for how long a break triggers a dose reset; that is a clinical judgement. If you have been off Wegovy for more than four weeks, the general recommendation is to restart at a lower dose and titrate back up. Your prescriber is the right person to advise on this based on how you tolerated treatment previously and what dose you were on. This is one of the reasons that aftercare matters as much as the initial prescription. At nume, a prescriber reviews every repeat order before it is dispensed, which creates a natural checkpoint for questions like this. You can check your eligibility and start that conversation through our free consultation.

If you are considering Wegovy as a treatment and want to understand the broader picture first, our Wegovy overview covers how it works, what the evidence shows, and what to expect from treatment.

Practical things that reduce the chance of missing future doses

Once a week is a simple schedule in principle and a surprisingly easy one to slip in practice. A recurring alarm on your phone set for the same time each week is the most reliable fix. Pairing it with a fixed moment in your routine helps too: the same cup of tea, the same morning routine, the same day you check in with yourself on how the week went. If Friday evenings work better than Monday mornings, discuss changing your injection day with your prescriber; you can shift the day by moving gradually in small increments, always keeping at least three days between injections during the transition.

Storage is worth mentioning here. Wegovy pens need to be kept refrigerated between 2°C and 8°C. If your pen lives somewhere it could easily be missed or forgotten, moving it to a more visible spot in the fridge can help. Once removed from the fridge, pens can be kept at room temperature for a limited period; your Patient Information Leaflet states the exact window and should be your reference for storage detail, not a general estimate.

If you are curious about how timing flexibility works in practice, the question of taking Wegovy a day early follows similar logic and is worth reading alongside this page. Some people also find it more convenient to inject in the evening, and if that describes you, our page on whether it is okay to take Wegovy at night covers what the evidence says about timing your dose later in the day. For the broader context of what semaglutide is and how it is licensed in the UK, our semaglutide guide is a useful starting point. And if cost or access has been a consideration, our Wegovy access page explains how private prescription works in the UK and what to look for in a regulated provider.