You missed a dose

The rule is different for every GLP-1, and two of them ask a different question entirely. Mounjaro, Ozempic, Wegovy, Zepbound, Trulicity, Saxenda, Victoza and Rybelsus, each from its own leaflet.

Find your medication below. There is no general rule here worth learning — the leaflets disagree with each other, and two of them are not even answering the same question.

Medication What its leaflet says
Mounjaro Take it as soon as you remember if it has been four days or less since it was due. More than four days, skip it and take the next one on your usual day.
Zepbound Take it as soon as you remember if it has been four days or less since it was due. More than four days, skip it and take the next one on your usual day.
Wegovy Take it now if your next dose is more than two days away. If it is less than two days away, skip it and stay on your schedule.
Ozempic Take it as soon as you remember if it has been five days or less, then count your week from that day. More than five days, skip it and keep your original day.
Trulicity Take it if there are at least three days until your next dose. Fewer than three, skip it and take the next one as planned.
Saxenda Skip it and take the next one at your usual time. Never double up, and if you miss more than three days in a row your dose may need restarting lower — ask your prescriber.
Victoza Skip it and take the next one at your usual time. Never double up, and if you miss more than three days in a row your dose may need restarting lower — ask your prescriber.
Rybelsus Skip it and take the next one tomorrow at the usual time. Do not take two tablets in a day to catch up.

The trap: Ozempic and Wegovy are the same drug and different rules

Both are semaglutide, and people switch between them or ask a friend on the other one. But they ask you to measure from opposite ends:

  • Ozempic counts forward from the dose you missed. Five days or less, take it — and your week now runs from that day.
  • Wegovy counts backward from your next dose. More than two days away, take the missed one — and your schedule does not move.

Those produce different answers on the same Thursday. If you take only one thing from this page, take that.

Never double up

No GLP-1 leaflet allows two doses to catch up, and the side effects of these medications scale with the dose — a double is the reliable way to spend a day being very unwell for no benefit at all. If you have missed enough that doubling feels tempting, that is the point at which to ask your prescriber rather than improvise.

The daily ones have no window

Saxenda, Victoza and Rybelsus have no catch-up dose. Skip the one you missed and take the next at its usual time.

There is a second thing to know about the daily injections, though: tolerance to the side effects fades. Missing more than about three days in a row can mean restarting at a lower dose and titrating back up, because picking up where you left off is how a week of nausea starts. That is a decision for your prescriber, and it is worth a phone call rather than a guess.

Two missed in a row is a different conversation

One missed dose is an ordinary thing that these leaflets are written to handle. Two or more consecutive missed doses on a weekly medication is not — you may need to step back down and titrate up again, and that is not something to work out from a table on a website.

From Steadyway

The reason this question comes up at all is that nothing writes the dose down. You are the record, four weeks deep, trying to remember whether last week's was Tuesday or Wednesday.

Steadyway logs each dose with the day you took it, reminds you on your own schedule — weekly or daily — and marks a late dose as late rather than quietly as missed, so the history you show your prescriber is the one that actually happened.

Common questions

How late can a Mounjaro dose be?
Four days. Take it as soon as you remember if it has been four days or less since it was due; if more than four days have passed, skip it entirely and take the next one on your usual day. Zepbound, the same molecule, says the same thing.
Is the rule the same for Ozempic and Wegovy?
No, and they are both semaglutide — which is exactly why people get it wrong. Ozempic counts forward from the dose you missed: within five days, take it. Wegovy counts backward from the next one: if that is more than two days away, take the missed dose now. Same drug, two different questions.
Can I take two doses to catch up?
No. No GLP-1 leaflet permits doubling up, and the side effects of these medications scale with dose — a double dose is the reliable way to spend a day being very unwell. If you have missed enough that you are tempted, that is the moment to ask your prescriber rather than improvise.
What about the daily ones?
Saxenda, Victoza and Rybelsus have no catch-up window at all: skip the missed dose and take the next one at its usual time. On the daily injections, missing more than three days in a row can mean restarting at a lower dose, because tolerance to the side effects fades — that is a conversation with your prescriber, not something to decide alone.
Do I move my injection day permanently?
Only Ozempic's leaflet actually asks you to: take a dose within the five-day window and your week is counted from that new day. The others put you back on your original day. If you want to change your day deliberately rather than by accident, that is a different question, and one for whoever prescribed it.

Read next

Steadyway is a tracker, not a medical device, and nothing on this page is medical advice. Decisions about your dose or your treatment belong with the person who prescribed it. See the medical disclaimer.

Not affiliated with, endorsed by, or connected to Eli Lilly and Company. Mounjaro and Zepbound are their trade marks. Last updated 8 September 2026.