Missed a GLP-1 dose? What each leaflet actually says
There is no single answer, and that is the most useful thing to know. The window for a late dose is five days for one product, four for another, two for a third, and for one of them the instruction is to skip it and take nothing. This page quotes what each product's own instructions say and points you at the source. It does not tell you what to do: that is your prescriber's call, and for some of these the leaflet says to phone them.
Read this first. What follows is quoted from public drug information, not advice for you. Products with the same active ingredient have different instructions depending on what they are prescribed for, and the leaflet in your box is the one that applies to you. If you are unsure, ask your pharmacist or the clinician who prescribed it: that is a normal question and they answer it every day.
Why the answer is different for every product
A weekly injection stays in the body for a long time, and how long differs by molecule. The instructions are written around that: they describe how late is still close enough to the original schedule, and how much room has to be left before the next dose so two doses do not land on top of each other. Because the molecules clear at different rates (and because the same molecule is dosed differently for diabetes than for weight management) the windows are not interchangeable. Reading a friend's answer, or a forum's, is reading the instructions for a different medicine.
What each one says
Quoted from the MedlinePlus drug information pages, which reflect the FDA-approved labelling. The brand names are given so you can find your product; they are trademarks of their owners.
Semaglutide injection, prescribed for type 2 diabetes (Ozempic®)
Inject the missed dose as soon as you remember it within 5 days after the missed dose. If more than 5 days have passed, skip it and continue the regular schedule. Do not take a double dose to make up for a missed one.
Semaglutide injection, prescribed for weight management or maintenance (Wegovy®)
Inject the missed dose as soon as you remember it within 2 days (48 hours). If the next scheduled dose is less than 2 days away, skip the missed one and resume the regular schedule. Same active ingredient as the line above, different window: this is the pair that catches people out.
Tirzepatide injection (Mounjaro®, Zepbound®)
Inject the missed dose as soon as you remember it within 4 days. If more than 4 days have passed, skip it. The instructions add a separate rule: do not inject two doses within 3 days of each other.
Dulaglutide injection (Trulicity®)
Inject the missed dose as soon as you remember it and continue the weekly schedule, unless there are less than 3 days until the next scheduled dose, in which case skip it. Do not use a double dose.
Liraglutide injection (Saxenda®, Victoza®)
This one is daily, not weekly. Inject when you remember, unless it is almost time for the next dose, in which case skip it; do not double up. And there is an instruction the weekly products do not have: if you forget it for 3 or more days, call your doctor.
Semaglutide tablets (Rybelsus®)
Also daily. Here the instruction is the simplest and the most different: skip the missed dose and continue the regular schedule. Do not take a double dose.
What none of them say
None of these instructions tell you to move your dose day permanently, to take a smaller catch-up dose, or to change the amount because you were late. If a dose slipping is becoming a pattern rather than an accident, that is worth raising at your next appointment: the schedule itself may be the thing to change, and that is a decision to make with the person who prescribed it.
Knowing whether you actually missed it
Half of the panic in this situation is not the missed dose; it is not being sure. Counting backwards from a half-remembered Thursday is not an answer, and it is the reason a log exists. A record of what you took and when turns "did I?" into a date on a screen, and if you did miss it, it also tells you exactly how many days ago, which is the number every one of the instructions above is asking for.
Dozify keeps the date, so you do not have to
Every injection with its date, its amount and its site, and the next one on the first screen. It records what you and your doctor decided; it never proposes a dose.
Download the app See how dose tracking works →Questions
Can I just take it as soon as I remember?
Only within the window your own product's instructions describe, and they are not the same length. Past it, every one of them says to skip rather than catch up.
Ozempic® and Wegovy® are both semaglutide. Why is the window different?
Because the instruction follows what the product is prescribed for, not just what is in it. The diabetes labelling describes five days; the weight-management labelling describes two. Follow the leaflet that came with your box.
Can I double the next dose to catch up?
Every set of instructions quoted here says explicitly not to. Tirzepatide's adds a further limit: no two doses within 3 days of each other.
I have missed several in a row. What now?
Contact the clinician who prescribed it. For liraglutide the instructions say this outright at three days; for the others, a gap long enough to break the schedule is a reason to ask rather than to work it out yourself, because restarting may not mean picking up at the dose you left.
Does a missed dose mean I have to start the titration again?
That is a clinical decision and it depends on how long the gap was, which product it is and why you are taking it. Nothing on this page answers it, and neither does the leaflet: it is a question for your prescriber.
Educational information, not medical advice. Dozify is a personal tracking app, not a medical device. This page quotes public drug information and does not recommend a dose, a schedule or a course of action for any individual. Always follow the instructions that came with your medication and your prescriber's directions. If you have severe symptoms, seek medical care or call your local emergency number.