Missed a weekly GLP-1 dose? What the labels say
Each weekly GLP-1 medication has its own missed-dose window, and they are not the same. Here is what the official US prescribing information and Canadian product monographs say, side by side. Your prescriber's or pharmacist's instructions come first.
Missed-dose windows at a glance
| Medication | Take it late if | Skip it if | Changing your weekly day |
|---|---|---|---|
| Ozempic (semaglutide) | Within 5 days after the missed dose | More than 5 days have passed | At least 2 days (48 h) apart |
| Wegovy injection (semaglutide) | Next dose is more than 2 days (48 h) away | Next dose is less than 2 days away | Not specified; ask your pharmacist |
| Mounjaro (tirzepatide) | Within 4 days (96 h) after the missed dose | More than 4 days have passed | At least 3 days (72 h) apart |
| Zepbound (tirzepatide) | Within 4 days (96 h) after the missed dose | More than 4 days have passed | At least 3 days (72 h) apart |
In every case the labels say to go back to your regular once-weekly schedule afterward. None of them say to take two doses to catch up.
Ozempic
The US prescribing information says to take a missed dose "as soon as possible within 5 days after the missed dose." After 5 days, skip it and inject on your usual day. Health Canada's Ozempic product monograph uses the same 5-day rule, and its patient section adds: "Do not take an extra dose or increase the dose to make up for a missed dose."
Wegovy injection
Wegovy's rule counts forward to the next dose instead of back to the missed one. Per the US label, if the next scheduled dose is more than 2 days (48 hours) away, take the missed one as soon as possible. If it is less than 2 days away, skip it and resume on your regular day.
The label also says that if 2 or more doses in a row are missed, the dose is restarted at a lower level to reduce the risk of stomach side effects. That is a prescriber decision, so call them before restarting. Wegovy tablets have a different rule (skip the missed tablet and take the next one the following day).
Mounjaro and Zepbound
Both tirzepatide labels, and the Canadian Mounjaro product monograph, give a 4-day (96-hour) window. Within 4 days, take the missed dose as soon as possible. After that, skip it and take the next dose on your scheduled day. You can move your weekly day if the two doses are at least 3 days (72 hours) apart.
Making missed doses less likely
- Pick a weekly day that fits your routine, such as a quiet evening, and set a recurring reminder.
- Log each injection right away with the date, time and site, so you never have to guess whether you already took it.
- When travelling, check your pen supply and storage before you leave.
- If you are unsure whether you injected, don't take another dose. Ask your pharmacist.
Keeping a record also makes injection site rotation and tracking side effects easier to discuss at appointments.
Sources
- Ozempic prescribing information, section 2 (DailyMed, US)
- Wegovy prescribing information, section 2.4 (DailyMed, US, June 2026)
- Mounjaro prescribing information, section 2 (DailyMed, US)
- Zepbound prescribing information, section 2.3 (DailyMed, US)
- Ozempic product monograph (Novo Nordisk Canada)
- Mounjaro product monograph (Eli Lilly Canada)
This page summarizes official product labels as general information. It is not medical advice. Follow the instructions from your prescriber or pharmacist, and contact them if you have missed doses or are unsure what to do. Labels are updated; check the current version for your product.
Frequently asked questions
I missed my Ozempic dose. How long do I have?
The Ozempic label (US) and product monograph (Canada) both say to take the missed dose as soon as possible within 5 days after it was due. If more than 5 days have passed, skip it and take the next dose on your regular day.
What if I missed my Wegovy injection?
The US Wegovy label says to take it as soon as possible if your next scheduled dose is more than 2 days (48 hours) away. If it is less than 2 days away, skip it and go back to your usual day. If you miss 2 or more doses in a row, the label says dosing is restarted at a lower dose, so contact your prescriber before your next injection.
What about Mounjaro or Zepbound?
The tirzepatide labels (Mounjaro and Zepbound in the US, and the Canadian Mounjaro monograph) give a 4-day (96-hour) window. After 4 days, skip the missed dose and take the next one on your regular day.
Should I take two doses to catch up?
No. None of these labels tell patients to double up. The Canadian Ozempic patient information says not to take an extra dose or increase the dose to make up for a missed one.
Can I move my injection day?
The Ozempic label allows changing the weekly day as long as doses are at least 2 days (48 hours) apart. The Mounjaro and Zepbound labels require at least 3 days (72 hours). Tell your pharmacist or prescriber when you change it.