Yes — keep Ozempic in the fridge, at 2°C to 8°C (36°F to 46°F). You can take it out and leave it at room temperature for 28 to 56 days, depending on the device. After that, throw it away. Do not freeze Ozempic and do not use it if it has been frozen. The label also directs against storing it in the freezer or directly adjacent to the refrigerator cooling element.
Source: Novo Nordisk label for Ozempic, SPL version 20, read 2026-08-12
What matters first
Fridge range
2°C to 8°C (36°F to 46°F)
Time at room temperature
28–56 days, depending on the device
Presentations checked
3
Freezing
Do not freeze Ozempic and do not use it if it has been frozen. The label also directs against storing it in the freezer or directly adjacent to the refrigerator cooling element.
Ozempic is stricter than the tirzepatide brands before you start a pen. Until then the label gives no room-temperature time at all — the pen stays in the fridge. Once you start it, the pen gets 56 days at 15°C to 30°C (59°F to 86°F), or you can put it back in the fridge. The single-dose prefilled syringe is a different product with its own figures: 8°C to 30°C (46°F to 86°F) for up to 28 days. Never freeze Ozempic, and never use it after it has frozen.
What the label states, by device
Ozempic has more than one storage rule. The number of days out of the fridge changes with the device, so find your device in the first column. Where the label says nothing, the row says so instead of guessing.
Ozempic storage conditions by device presentation, from the FDA label
Presentation
Refrigerated
Room temperature
Time allowed
After first use
Single-patient-use pen, before first useThe multi-dose pen holding four weekly doses, before the first injection is taken.
2°C to 8°C (36°F to 46°F)
Not stated on this label
Not stated on this label
Not applicable
Single-patient-use pen, after first useThe same multi-dose pen once the first injection has been taken.
2°C to 8°C (36°F to 46°F)
15°C to 30°C (59°F to 86°F)
56 days
56 days, whether the pen is kept at 15°C to 30°C or back in the refrigerator at 2°C to 8°C. This is the longest in-use window of the four brands.
Single-dose prefilled syringeThe four-pack of single-dose prefilled syringes, a separate presentation from the pen.
2°C to 8°C (36°F to 46°F)
8°C to 30°C (46°F to 86°F)
28 days
Not applicable
Storage date calculator
When should I discard it?
stays on this device
Choose your Ozempic device and enter the date below. The calculator adds the day limit from that device’s label.
Nothing is saved or sent. Changing the device can change the day limit, so match the name to the device in your hand.
56-day label window
Enter the date to see when the 56-day window reaches its limit.
Temperature
15°C to 30°C (59°F to 86°F)
Label rule
56 days, whether the pen is kept at 15°C to 30°C or back in the refrigerator at 2°C to 8°C. This is the longest in-use window of the four brands.
This is a calendar reminder, not a temperature check. If the label counts separate periods out of the fridge, add those days together; one start date is exact only when the device stayed out continuously. If it froze, got too hot, or was out longer than you can confirm, the date alone cannot tell you whether to use it.
The conditions attached to those windows
A day count on its own leaves out the fine print. Here is what the label attaches to each one, and what it says to do when the time is up.
Single-patient-use pen, before first use
The Ozempic label gives a fridge rule before first use and a room-temperature rule after it. For an unopened pen there is no room-temperature window at all. That is the one clear gap across these four labels, and the reason no figure should be carried over from Zepbound, Mounjaro or Wegovy.
Single-patient-use pen, after first use
The label calls this controlled room temperature and sets both ends. A cold room below 15°C falls outside the window just as a hot one above 30°C does.
The refrigerator remains permitted after first use; the 56 days apply either way.
The label directs keeping the pen cap on when not in use, and storing the pen with no needle attached.
When the window ends: The pen may be stored for 56 days after first use.
Single-dose prefilled syringe
A third definition of room temperature on these labels: bracketed, but from 8°C rather than 15°C.
The instructions for use direct recording the date the syringe was taken out of the refrigerator and disposing of it if unused within 28 days.
When the window ends: Discard the syringe after use, or if not used within 28 days out of the refrigerator.
Where this label states nothing
One presentation on the Ozempic label has no room-temperature allowance stated at all. Other brands in this section do state one. Borrowing their number here would hand you a permission this label never gave, so we leave the gap where it is.
Single-patient-use pen, before first use: The Ozempic label gives a fridge rule before first use and a room-temperature rule after it. For an unopened pen there is no room-temperature window at all. That is the one clear gap across these four labels, and the reason no figure should be carried over from Zepbound, Mounjaro or Wegovy.
Freezing and light
Freezing
Do not freeze Ozempic and do not use it if it has been frozen. The label also directs against storing it in the freezer or directly adjacent to the refrigerator cooling element.
Light and heat
Protect Ozempic from excessive heat and sunlight, keep the pen cap on when not in use, and keep the product in the original carton until it is time to take the dose.
Traveling with Ozempic
Most travel advice on this topic is written from habit. The first list is what the Ozempic label actually covers. The second is what it never mentions. If you read a confident answer to one of those, it came from somewhere other than the label.
What the label supports
An in-use pen travels well on the label’s own terms: 56 days at 15°C to 30°C (59°F to 86°F), the longest in-use window of these four brands.
A prefilled syringe gets 28 days at 8°C to 30°C (46°F to 86°F). The instructions say to write down the date it left the fridge.
The label says to keep the pen in its original carton until it is used, and to keep the cap on. Both rules travel with the product.
The refrigerator stays available after first use, so a fridge at the destination does not restart or waste the 56-day count.
What the label does not address
An unopened pen out of the refrigerator. The label states no room-temperature window before first use, so there is no labeled allowance to rely on — and none may be borrowed from another brand.
Cooling bags, gel packs and coolers, which the label never names.
Airport security screening and X-ray exposure, absent from the label entirely.
Air travel, cabin pressure and checked baggage, which the label does not address.
Questions about storing Ozempic
Does Ozempic need to be refrigerated?
Yes, at 2°C to 8°C (36°F to 46°F) before first use. Unlike the tirzepatide labels, this one gives no room-temperature time for a pen you have not started. Once you start it, the pen gets 56 days at room temperature or in the fridge.
How long can Ozempic be out of the refrigerator?
Once you start it, 56 days at 15°C to 30°C (59°F to 86°F). A single-dose prefilled syringe gets 28 days at 8°C to 30°C (46°F to 86°F). Before first use, the pen’s label gives no room-temperature window at all.
Can an unopened Ozempic pen be left out at room temperature?
The label does not state a room-temperature allowance before first use — it directs refrigeration at 2°C to 8°C until then. We publish that absence rather than filling it with another product’s number, because Zepbound’s 21 days and Wegovy’s 28 days belong to those labels, not to this one.
What is controlled room temperature on the Ozempic label?
15°C to 30°C, stated as 59°F to 86°F. It is a bracket rather than a ceiling, so a room colder than 15°C sits outside the stated window as much as one hotter than 30°C.
Is Ozempic still usable after it has been frozen?
The label directs not freezing Ozempic and not using it if it has been frozen. It also directs against storing it directly adjacent to the refrigerator cooling element, which is where accidental freezing tends to happen.
Do Ozempic pens and prefilled syringes store the same way?
No. They are separate products with separate figures. The pen gets 56 days at 15°C to 30°C once you start it. The syringe gets 28 days from 8°C to 30°C, and you throw it away after one use.
Does the needle stay on the Ozempic pen between doses?
Take the needle off after each injection and throw it away safely. Store the pen with no needle attached and the cap on.
The same question on the other labels
The days-out-of-the-fridge figure gets copied between these products constantly, and it does not carry over. Each page below is read from that product’s own label.
FDA labelSPL set id adec4fd2-6858-4c99-91d4-531f5f2a2d79
Every figure on this page was read from the label linked below on 2026-08-12. Labels get revised, and a revision can change a day count without changing anything on the carton — the version and date above are what this page was written against.
1primary source, each with the day we read it — open the documents used on this page
Does Ozempic lose effectiveness if not refrigerated?
The label makes no claim of that kind, in either direction. It gives storage conditions and discard rules, not a description of strength fading over time.
What it does state is narrower and firmer. Protect it from excessive heat and sunlight, keep the cap on, and do not use it if it has frozen. Past its stated window the label directs discarding rather than describing a decline.
How long can semaglutide be out of the fridge?
It depends on which product and which device, because semaglutide is the molecule in both Ozempic and Wegovy. An in-use multi-dose pen gets 56 days at 15°C to 30°C on either brand’s label.
The single-dose forms differ: an Ozempic prefilled syringe gets 28 days at 8°C to 30°C. Wegovy’s single-dose pen and syringe get 28 days at the same range, but only while the cap is still on. Wegovy tablets need no refrigeration at all.