Education · not medical advice
GLP-1 storage: how long can it be out of the fridge?
The number is on your carton, and it is not the same for every product — even for two products containing the same drug.
There is no single answer for “semaglutide” or “tirzepatide.” The in-use limit is set per presentation, not per molecule: an Ozempic multi-dose pen allows 56 days out of the fridge, while Wegovy — the same drug — allows 28. Check the carton you are actually holding.
Products below that contain the same active ingredient are listed separately on purpose, because their labels give different answers.
In-use limits from the FDA labels
Quoted from each product's approved label. “In use” means after first use, or after it leaves the refrigerator — whichever the label defines.
| Product | Before first use | Once in use | Source |
|---|---|---|---|
| Ozempicsemaglutide · multi-dose pen | 2–8 °C | 56 days(15–30 °C) | Ozempic FDA label (DailyMed), §16 |
| Ozempicsemaglutide · single-dose prefilled syringe | 2–8 °C | 28 days(8–30 °C) | Ozempic FDA label (DailyMed), §16 |
| Wegovysemaglutide · single-dose pen | 2–8 °C | 28 days(8–30 °C)Applies before the pen cap is removed. | Wegovy FDA label (DailyMed), Instructions for Use |
| Mounjarotirzepatide · single-dose pen or vial | 2–8 °C | 21 days(≤30 °C) | Mounjaro FDA label (DailyMed), §16.2 |
| Mounjarotirzepatide · opened multi-dose vial or KwikPen | 2–8 °C | 30 days(≤30 °C)Or 30 days after first use, or after 4 weekly doses — whichever comes first. | Mounjaro FDA label (DailyMed), §16.2 |
| Zepboundtirzepatide · single-dose pen or vial | 2–8 °C | 21 days(≤30 °C) | Zepbound FDA label (DailyMed), §16.2 |
| Zepboundtirzepatide · opened multi-dose vial or KwikPen | 2–8 °C | 30 days(≤30 °C)Or 30 days after first use, or after 4 weekly doses — whichever comes first. | Zepbound FDA label (DailyMed), §16.2 |
| Trulicitydulaglutide · single-dose pen | 2–8 °C | 14 days(≤30 °C) | Trulicity FDA label (DailyMed), §16.2 |
| Victozaliraglutide · multi-dose pen | 2–8 °C | 30 days(15–30 °C) | Victoza FDA label (DailyMed), §16 |
| Saxendaliraglutide · multi-dose pen | 2–8 °C | 30 days(15–30 °C) | Saxenda FDA label (DailyMed), §16 |
| Rybelsussemaglutide · tablets | 20–25 °C | No day limit — use until the expiry dateKeep in the original bottle to protect from moisture. | Rybelsus FDA label (DailyMed), §16 |
| Foundayoorforglipron · tablets | 20–25 °C | No day limit — use until the expiry dateLight sensitive — keep in the original bottle and carton. | Foundayo (orforglipron) FDA label (DailyMed), §16.2 |
These are the manufacturers' own figures, not our recommendation. Labels are revised, packaging differs by country, and your carton is the authority. If a product has been warmer than its limit, frozen, or out longer than the label allows, ask a pharmacist rather than guessing.
Why the same drug has two different answers
A reusable multi-dose pen is designed to be carried and used repeatedly, so it is tested and approved for a longer in-use window. A single-dose pen or syringe is not. That is why Ozempic's pen gets 56 days and Wegovy's single-dose pen gets 28 — same molecule, different device, different approved limit. Tablets work differently again: Rybelsus and Foundayo have no in-use clock at all and simply run to their expiry date.
What the labels agree on
Across every injectable here, three rules are consistent:
- Refrigerate before first use, at 2–8 °C — not in the freezer, and not against the cooling element.
- Never use it if it has been frozen, even if it has thawed and looks normal.
- Keep it in the original carton and protect it from heat and light; 30 °C is the ceiling for every injectable listed.
Common questions
How long can Ozempic be out of the fridge?
The Ozempic multi-dose pen may be stored for 56 days at 15–30 °C after first use, per its FDA label. The single-dose prefilled syringe is different: up to 28 days at 8–30 °C. Check which presentation you have, and confirm against your carton.
How long can Wegovy be out of the fridge?
Up to 28 days at 8–30 °C in its original carton, before the pen cap is removed, per the FDA-approved Instructions for Use. Wegovy's label says to throw the pen away if it has been frozen, exposed to light, above 30 °C, or out of the refrigerator for 28 days or more.
Is Mounjaro the same as Zepbound for storage?
Yes — both are tirzepatide from the same manufacturer and their storage sections are word for word identical. A single-dose pen or vial allows up to 21 days unrefrigerated at or below 30 °C; an opened multi-dose vial or KwikPen is discarded after 30 days at room temperature, 30 days after first use, or 4 weekly doses, whichever comes first.
What happens if it got too warm or was frozen?
Every label here says not to use a product that has been frozen, and several say to discard it if it has been above 30 °C. This page cannot tell you whether a specific pen is still usable — that is a question for the pharmacy that dispensed it, and they can usually answer it in a phone call.
Do the tablets need refrigerating?
No. Rybelsus and Foundayo are stored at 20–25 °C with excursions permitted to 15–30 °C, and they have no in-use day limit — they run to the printed expiry date. Rybelsus should stay in its original bottle to protect from moisture; Foundayo is light sensitive and should stay in its bottle and carton.
Keep reading
Educational only — not medical advice. These figures are quoted from FDA-approved labels current at the time of writing and may be revised; packaging and approved storage can differ by country. Your product's carton and your pharmacist are the authority on your medication.
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