Missed a Semaglutide Dose? Here Is What to Do Next

Less than five days until your next dose: skip it and move on

This is the most common scenario, and it has a clear answer. If fewer than five days remain before your next scheduled injection, do not go back and take the one you missed. Your body's semaglutide level will drop a little, but it will not drop to zero, the medicine has a half-life measured in roughly a week, so some is still working. Taking a dose now, then another in just a few days, compresses two full injections into a short window and that is when side effects hit hardest.

Nausea, vomiting and diarrhoea are already the most commonly reported effects when starting semaglutide or moving up through the dose schedule; doubling up recreates exactly the sharp concentration spike that causes them. The NHS semaglutide medicines page is clear that the double-dose approach should be avoided. So: mark the day off, keep your pen in the fridge, and pick back up on your normal injection day as planned.

One practical note (a question our prescribers hear regularly) if you keep your pen in your gym bag rather than at home, the occasional missed day is often a routine issue rather than a clinical one. Moving it somewhere more fixed, like the fridge door, tends to solve it.

More than five days until your next dose: take it now, then resume your schedule

When more than five full days remain before your next planned injection, there is enough of a gap to administer the missed one safely. Do it as soon as you remember, then continue with your normal weekly day unchanged. The schedule does not slide forward.

If you are unsure whether you are in the five-day window or not, it is always safer to skip. Our guide to what to do after a Wegovy missed dose walks through the decision in full if you want more detail on the reasoning behind that threshold. Your prescriber would make the same call.

For a broader look at how the full dosing schedule works across the titration stages, the guide to Wegovy doses covers each step in detail. Understanding the schedule makes it easier to know exactly where you are if this situation comes up again.

You have missed a week or more: this needs a conversation

Missing one injection is routine. Missing two or three consecutive weeks is a different situation, and it deserves more careful handling. After an extended gap, semaglutide levels in your system will have fallen considerably. Restarting at the dose you were on (particularly if you had already titrated up) can feel like starting over, with nausea and other gastrointestinal symptoms returning as your body readjusts.

In practice, many prescribers will advise stepping back down to a lower dose temporarily before returning to where you left off, rather than jumping straight back to, say, 1.7mg or 2.4mg after several weeks away. If you find yourself in that position, our page on missing 2 doses of Wegovy covers what typically happens next and how to approach restarting safely. This is the kind of decision that genuinely benefits from a clinical eye rather than a general guide.

If you are a current patient, contact our aftercare team, who are available seven days a week. If you are thinking about starting Wegovy and want to understand how the process is managed from the first dose onwards, our Wegovy overview explains the full picture.

When a pattern of missed doses might mean something bigger

Occasionally, repeated missed injections are not just about forgetting. Some people find nausea or injection anxiety makes them reluctant to use the pen, and delaying becomes a habit rather than an oversight. If that resonates, it is worth saying plainly rather than pushing through in silence, your prescriber can explore whether a lower dose, a slower titration, or a different approach suits you better.

It is also worth knowing that if you have been missing doses because you are considering switching to the oral form of Wegovy, understanding how semaglutide dosing compares across the injection and tablet formats is a reasonable starting point before that conversation. People established on the 2.4mg weekly injection may move directly to the 25mg maintenance tablet, subject to clinical assessment, but that is a decision for your prescriber, not one to make unilaterally.

The MHRA also notes that patients should report unexpected symptoms via the Yellow Card scheme, this applies to any concerning effects noticed during or after a gap in treatment, not just during active dosing. If you are weighing up what Wegovy costs through a private clinic versus waiting for NHS access, the information on getting Wegovy privately sets out what is involved. And if you have already decided you want a clinical assessment, you can check your eligibility through a free consultation with our prescribers.