Missed a Wegovy Dose? Here's What to Do Next

Step 1, Work out how many days are left before your next scheduled injection

The first thing to do is count. Wegovy is taken once a week, so you have a fixed injection day, say, every Sunday. If you miss Sunday and it is still Monday or Tuesday, you almost certainly have room to take the dose late. The threshold is five days: if at least five full days remain before your next injection, the missed pen can be taken when you remember it.

If you realise on Thursday that you missed Sunday's dose, the gap has narrowed to two days before the next Sunday. In that case, leave it. Taking the missed dose two days before the next one would give your body back-to-back exposure it is not designed to handle on this regimen.

One thing many people feel in this moment is quiet panic, especially if they have been making steady progress and worry a single missed week will undo it. It very rarely does. One skipped injection is not a reason to change your dose or restart titration. Carry on with your usual day next week as if nothing changed. The Wegovy dose schedule is built with some human imperfection in mind.

Step 2, Decide: take the missed dose or skip it

Having counted the days, the decision is binary. Five or more days to go: take it now, then return to your normal weekly day from that point onward, your injection day does not shift. Fewer than five days: skip it entirely and inject on your usual day as planned.

This matters because semaglutide has a half-life of roughly one week. Doubling up compresses two weeks of medicine into a very short window. The result is usually a sharp spike in nausea, vomiting, diarrhoea or reflux, the same side effects that are common when starting or moving up a dose, described in detail on the NHS medicines page for semaglutide. There is no clinical benefit to rushing; the medicine does not work faster if you take more of it in a short period.

If you are unsure (if you have genuinely lost track of your last injection date, or if you have missed more than one dose in a row) that is a conversation for your prescriber rather than a judgement call to make alone. For a closer look at exactly what to do in that situation, the guidance on what to do if you miss a dose of Wegovy walks through the options step by step. More on that below.

Step 3, Know when to contact your prescriber

Missing one dose occasionally is common and manageable with the five-day rule. Missing several weeks in a row is different. Extended breaks from semaglutide can affect tolerability when you restart, your body may respond to the resumption as though it is encountering the medicine afresh, and some prescribers will advise stepping back down a dose temporarily rather than picking up where you left off.

There is also the question of timing around dose increases. If you have recently moved up a strength and then miss a dose, your prescriber will want to factor that in before advising you. Our clinical team reviews every repeat order individually (there is no auto-pilot here) so if something in your schedule has gone off-track, the repeat review is exactly the right moment to flag it.

If you want a fuller picture of what different missed-dose scenarios look like in practice, the page on what happens when you miss a Wegovy dose covers the downstream effects in more detail. For questions about timing windows specifically, the dedicated resource on a Wegovy missed dose sets out the clinical considerations around longer gaps, and if you are wondering about the outer limits of those gaps, the page covering how long you can miss a Wegovy dose gives a clear breakdown of what the evidence says.

A note on cost and continuity

Some people miss doses because they have run out of pens and are waiting on a reorder. If that is happening regularly, it is worth looking at how your supply is organised. The Wegovy cost context page explains what a private prescription typically includes, and why a service with same-day clinical review and next-working-day delivery makes a material difference to continuity. A gap in supply is not a gap you should have to plan around.

If you are thinking about whether Wegovy is still the right treatment for where you are now, or if you have questions about switching, checking your eligibility with our prescribers is a good starting point. Every consultation at nume is reviewed by a GPhC-registered Independent Prescriber on the day it arrives, a real clinician, not a form-processor.