Missed a GLP-1 dose? What the Wegovy, Zepbound, Ozempic, Mounjaro and Foundayo labels say to do

Why one rule does not fit every GLP-1 medicine

People often assume a missed GLP-1 dose is handled the same way for every product, and online forums tend to repeat a single rule of thumb. The prescribing information tells a different story. Each manufacturer wrote its own instruction, tied to the product and the way it is taken, and the numbers do not match. This guide sets the instructions side by side so you can see exactly where they differ, and where the labels are silent.

We reviewed the current prescribing information for Wegovy (injection and tablets, revised 06/2026), Ozempic, Mounjaro (revised 08/2026), Zepbound (revised 08/2026) and Foundayo (orforglipron tablets, revised 07/2026), and the dosage and administration sections in particular. We checked each document on 9 October 2026. Labels are revised from time to time, so the copy your pharmacy gave you, and the Medication Guide that came in the box, are the instructions that apply to you.

The label instructions side by side

Medicine	How it is taken	If a dose is missed (per the label)	If several doses are missed
Wegovy injection	Once weekly, same day each week	If the next scheduled dose is more than 2 days away, take the missed dose as soon as possible. If it is less than 2 days away, do not take it; resume on the regular day.	If 2 or more consecutive doses are missed, restart dose escalation at a lower dose to lower the risk of gastrointestinal side effects.
Wegovy tablets	Once daily, empty stomach in the morning	Skip the missed dose and take the next dose the following day.	Not addressed separately in the missed-dose section.
Ozempic	Once weekly	Take as soon as possible within 5 days after the missed dose. After more than 5 days, skip it and take the next dose on the regular day.	No separate rule in the section reviewed.
Mounjaro and Zepbound	Once weekly	Take as soon as possible within 4 days (96 hours) after the missed dose. After more than 4 days, skip it and take the next dose on the regular day.	No separate rule in the section reviewed.
Foundayo	Once daily, with or without food	Take the dose as soon as possible. Do not double up the next dose.	If 7 or more consecutive doses are missed, restart dose escalation at a lower dose.

That table is a summary of label wording, not a substitute for it. Where the table says “no separate rule in the section reviewed,” we mean exactly that: we did not find an instruction in the missed-dose section, and we are not suggesting there is no clinical consideration. For a long gap on one of those medicines, your prescriber is the person to ask.

Weekly injections: three different windows

Wegovy injection: a two-day rule

The Wegovy label (section 2.4) frames the decision around the next scheduled dose rather than around how late you are. If the next dose is more than 2 days away, the label says to administer the missed dose as soon as possible. If the next scheduled dose is less than 2 days away, it says not to administer the missed dose and to resume on the regularly scheduled day of the week. In practice that means the longer ago you were supposed to inject, the more likely the label tells you to skip it, and the look-ahead to your next injection day is what matters. Section 2.1 also says to administer Wegovy once weekly on the same day each week, at any time of day, with or without meals.

Ozempic: a five-day window

The Ozempic label (section 2.1) uses a different yardstick: a missed dose should be administered as soon as possible within 5 days after the missed dose. If more than 5 days have passed, it says to skip the missed dose and take the next dose on the regularly scheduled day, and in each case to resume the usual once-weekly schedule. The same section says the day of weekly administration can be changed if necessary, as long as the time between two doses is at least 2 days (more than 48 hours).

Mounjaro and Zepbound: a four-day window

The Mounjaro and Zepbound labels, both for tirzepatide, share the same wording (section 2.3 in Zepbound, the missed-dose recommendations in Mounjaro). A missed dose should be administered as soon as possible within 4 days (96 hours) after the missed dose. After more than 4 days, skip it and take the next dose on the regularly scheduled day. The labels add that the day of weekly administration can be changed, if necessary, as long as the time between the two doses is at least 3 days (72 hours).

Notice that the day-change interval is different too: 2 days for Ozempic and 3 days for the tirzepatide labels. In the Wegovy sections we reviewed, we did not find a day-change interval stated in the same way, so if you want to move your injection day on Wegovy, ask your prescriber how to do it.

Daily tablets: skip it or take it late

The two oral products point in opposite directions, and the reason shows up in how they are taken.

Wegovy tablets. The Wegovy label says to take the tablet once daily on an empty stomach in the morning with water (up to 4 ounces), and to wait at least 30 minutes before eating, drinking or taking other oral medicines. For a missed dose, section 2.4 says to skip the missed dose and take the next dose the following day. We have a separate walk-through of the daily routine for the Wegovy pill that covers the empty-stomach instructions.

Foundayo. The Foundayo label says to take one tablet once daily with or without food, and that no more than one tablet should be taken per day. For a missed dose, section 2.3 says to take the dose as soon as possible and instructs patients not to double up the next dose. Our comparison of Foundayo and the Wegovy pill sets out other label differences between the two tablets.

If you have been moving between an injection and a pill, our guide to switching from an injection to an oral GLP-1 explains the transition instructions in the Wegovy label. Missed-dose rules do not carry over from one product to the other, which is a common source of confusion after a switch.

When more than one dose is missed

Two of the labels address a longer gap directly, and both connect it to side effects rather than to losing effect.

• Wegovy injection: if 2 or more consecutive doses are missed, the label says to reinitiate dosage escalation at a lower dosage to reduce the risk of gastrointestinal adverse reactions.
• Foundayo: if 7 or more consecutive doses are missed, the label says to restart dosage escalation at a lower dosage, again to reduce the risk of gastrointestinal adverse reactions.

The reasoning is visible elsewhere in the labels. These medicines are started at a low dose and increased in steps because, as the Wegovy label puts it in its dosing instructions, the escalation schedule is meant to reduce the risk of gastrointestinal adverse reactions. A gap long enough that the body is no longer used to the dose is the situation the restart instruction is written for. The Wegovy label also lists severe gastrointestinal adverse reactions as a warning in section 5.6, and our article on dehydration and acute kidney injury covers the related volume-depletion warning.

The Ozempic, Mounjaro and Zepbound missed-dose sections do not set a number of consecutive missed doses at which to restart escalation. That does not mean a long break is trivial on those products. It means the instruction is a clinical decision for the prescriber, who knows your dose, your history and your reason for the gap.

A note on half-life

The labels differ in how long the medicine stays in the body. The Wegovy label’s overdosage section refers to a long half-life of approximately 1 week, and the Zepbound label refers to a half-life of tirzepatide of approximately 5 days. It is tempting to read the 4-day and 5-day windows as following from those numbers, but the missed-dose sections do not say that, and we do not claim it. We mention half-life only as context for why a weekly injection and a daily tablet cannot share a rule.

Compounded and other non-label products

Everything above applies to the FDA-approved products and their labeling. Compounded semaglutide and tirzepatide are not FDA-approved, are not covered by these labels, and their dosing and missed-dose instructions come from the prescriber and dispensing pharmacy. Our explainer on compounded semaglutide versus Wegovy sets out what differs. If you are using a compounded product, write down the instructions you were given and ask the pharmacy what to do if a dose is late, rather than borrowing a brand label’s window.

Practical steps that do not require guessing

1. Identify the exact product and strength you were prescribed. The window depends on the product, and the pen or tablet carton names it.
2. Work out how many days have passed since the scheduled dose. For weekly injections, count from the day you were due, not from when you noticed.
3. Compare with your label. Use the table above to locate the right window, then confirm in your Medication Guide.
4. Do not combine two doses to catch up. The Foundayo label says this explicitly. The other labels we reviewed give a take-it or skip-it instruction and do not describe a catch-up dose.
5. Contact your prescriber or pharmacist if you are outside the stated rule, if you are on a product whose label is silent, or if you missed several doses in a row.
6. Tell your prescriber about the gap at your next visit, especially if it was caused by nausea, vomiting or another side effect.

Our guide to common GLP-1 dosing mistakes and the overview of injection administration and storage basics cover related ground. We have deliberately left prices out of this article, because the question here is dosing instructions, not cost.

Common mistakes

• Applying the Ozempic rule to Wegovy, or the reverse. The windows are measured differently, from the missed dose in one case and from the next scheduled dose in the other.
• Taking a skipped Wegovy tablet later in the day. The label for the tablet says to skip and resume the next day, which is the opposite of the Foundayo instruction.
• Doubling up. Foundayo says not to; do not assume a different product allows it.
• Quietly stopping and restarting at the old dose after a long gap. Two labels describe restarting at a lower dose after a run of missed doses.
• Relying on a forum answer. The label for your product is the Tier-1 source, and your prescriber can interpret it for you.

Questions people ask

Medical disclaimer. This article is informational, was prepared by the GLP-1.Reviews editorial team from the public sources listed above, and is not medical advice. Label wording can change; confirm the instructions for your product with the Medication Guide that came with it. Talk to your prescriber or pharmacist about your own treatment, and see our medical disclaimer and editorial standards.

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