How Long Can Ozempic Be Out of the Fridge? GLP-1 Storage Rules
An Ozempic pen can stay out of the fridge for 56 days after first use at 59°F to 86°F. Zepbound and Mounjaro single-dose pens get 21 cumulative days, and their multi-dose vials and KwikPens get 30 days. All of them must be thrown away if frozen.
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An Ozempic pen can be out of the fridge for 56 days after its first use, as long as it stays between 59°F and 86°F (15°C to 30°C) [1]. Before that first use, the pen belongs in the refrigerator at 36°F to 46°F (2°C to 8°C) [1]. The Wegovy FlexTouch single-patient-use pen follows the same rule: refrigerated before first use, then 56 days at 59°F to 86°F or in the refrigerator [2].
The numbers change by device, even within the same brand. Zepbound and Mounjaro single-dose pens and vials can be unrefrigerated at up to 86°F (30°C) for a total of 21 days [3][7]. Their multi-dose vials and KwikPens follow a different set of rules with a 30-day limit [3][7]. Saxenda pens get 30 days at room temperature after first use [5]. The pills, Wegovy tablets and Foundayo, never need refrigeration at all [2][4].
GLP-1 storage temperature chart at a glance
| Product and device | Refrigerated storage | Out-of-fridge allowance |
|---|---|---|
| Ozempic multi-dose pen | 36°F to 46°F before first use [1] | 56 days at 59°F to 86°F after first use, or refrigerated [1] |
| Ozempic single-dose prefilled syringe | 36°F to 46°F [1] | 46°F to 86°F for up to 28 days; discard after use [1] |
| Wegovy single-dose pen or syringe | 36°F to 46°F [2] | 46°F to 86°F for up to 28 days, before cap removal [2] |
| Wegovy FlexTouch single-patient-use pen | 36°F to 46°F before first use [2] | 56 days at 59°F to 86°F after first use, or refrigerated [2] |
| Zepbound or Mounjaro single-dose pen or vial | 36°F to 46°F [3][7] | Up to 86°F for a total of 21 days [3][7] |
| Zepbound or Mounjaro multi-dose vial or KwikPen | 36°F to 46°F; usable until the label expiration date if kept refrigerated [3][7] | Unopened: discard after 30 days at up to 86°F. Opened: discard at the earliest of 30 days total at room temperature, 30 days after first use, or 4 weekly doses [3][7] |
| Saxenda pen | 36°F to 46°F before first use [5] | 30 days at 59°F to 86°F after first use, or refrigerated; discard after 30 days even if medicine remains [5] |
Why does the same brand have 56 days for one pen and 28 days for another?
The difference comes down to the device. Multi-dose pens hold several doses, and their room-temperature clock starts at first use. The Ozempic pen and the Wegovy FlexTouch pen both work this way: refrigerated until the first injection, then 56 days at room temperature or in the refrigerator [1][2].
Wegovy single-dose pens and syringes hold one dose, and their 28-day window applies before the cap is removed [2]. The temperature ranges differ too. The single-dose range starts at 46°F (8°C), while the multi-dose in-use range starts at 59°F (15°C) [1][2].
The Wegovy label also tells patients and caregivers that if the prescribed presentation changes, they should receive training for the new device and read the new Instructions for Use [2].
How long can Zepbound and Mounjaro single-dose pens stay out of the fridge?
Zepbound and Mounjaro single-dose pens and single-dose vials can be stored unrefrigerated at temperatures not exceeding 86°F (30°C) for up to a total of 21 days [3][7]. Store them in the refrigerator at 36°F to 46°F (2°C to 8°C) otherwise [3][7].
The word “total” matters here. The labels say to discard the single-dose pen or vial after a total of 21 days at room temperature, and the two labels share identical storage wording [3][7]. The 21 days are summed across every period the pen spends out of the refrigerator, not counted as one continuous stretch.
The labels also state that it is not necessary to warm the pen to room temperature before injecting [3][7].
How long is an opened Zepbound or Mounjaro multi-dose vial or KwikPen good for?
Unopened, a Zepbound or Mounjaro multi-dose vial or single-patient-use KwikPen can be used until the expiration date on the label if kept in the refrigerator [3][7]. If stored at room temperature up to 86°F, throw it away after 30 days [3][7].
Once opened, store it in the original carton, either in the refrigerator at 36°F to 46°F or at room temperature up to 86°F [3][7]. Throw it away at the earliest of three points: a total of 30 days at room temperature, 30 days after first use, or after taking 4 weekly doses, even if there is medicine left in it [3][7].
What happens if a GLP-1 pen gets too warm?
Every injectable GLP-1 product caps its room-temperature allowance at 86°F (30°C) [1][2][3][5][7]. Above that, the allowance no longer applies. The Wegovy patient information is explicit that a single-dose pen or syringe should be thrown away if it has been exposed to temperatures above 86°F (30°C) [2].
The labels also direct protection from heat. Zepbound and Mounjaro should be protected from heat and light [3][7]. Ozempic should be protected from excessive heat and sunlight [1], the Wegovy FlexTouch pen from excessive heat and light [2], and Saxenda from excessive heat and sunlight [5].
If a pen has been exposed to conditions outside what the label allows, the Wegovy patient information lists freezing, light exposure, temperatures above 86°F, and exceeding the day limits as reasons to throw it away [2]. For questions about a specific pen, a pharmacist or the manufacturer can help.
What if my pen froze?
Do not use it. Every label for these injectables says the same thing: do not freeze the product, and do not use it if it has been frozen [1][2][3][5][7]. The Zepbound and Mounjaro pen Instructions for Use go a step further and say that if the pen has been frozen, throw it away and use a new pen [3][7].
The Novo Nordisk labels (Ozempic and Wegovy) and the Saxenda label also warn against storing the product in the freezer or directly adjacent to the refrigerator cooling element [1][2][5]. That spot in the fridge can get cold enough to freeze a pen even inside a refrigerator that is set correctly.
How should I store pens day to day?
Keep pens in the original carton until it is time to administer a dose, to protect them from light [1][2][3][7].
For the multi-dose pens, Ozempic, Wegovy FlexTouch, and Saxenda, keep the pen cap on when not in use, always remove and safely discard the needle after each injection, store the pen without a needle attached, and use a new needle for each injection [1][2][5].
The Zepbound and Mounjaro pens have glass parts. The Instructions for Use say to handle the pen carefully, and if it is dropped on a hard surface, do not use it; use a new pen for the injection [3][7].
What should the medicine look like before I inject?
Check the liquid before every dose. Semaglutide products, Ozempic and Wegovy, should appear clear and colorless. The Ozempic label says not to use it if particulate matter or coloration is seen [1][2].
Tirzepatide products, Zepbound and Mounjaro, should appear clear and colorless to slightly yellow. Do not use them if particulate matter or discoloration is seen [3][7]. The pen Instructions for Use for both products also say to make sure the medicine is not frozen and not cloudy, and that air bubbles in the pen are normal [3][7].
Do Wegovy tablets or Foundayo need refrigeration?
No. Wegovy tablets are stored at 68°F to 77°F (20°C to 25°C), with excursions permitted to 59°F to 86°F, which the label describes as USP controlled room temperature [2]. Store and dispense them in the original bottle, keep them in the original bottle until use to protect them from moisture, and store them in a dry place away from moisture [2].
Foundayo (orforglipron) tablets are stored the same way: 68°F to 77°F, with excursions permitted between 59°F and 86°F [4]. Foundayo is light sensitive, so protect it from light by keeping it in the original bottle and carton and replacing the cap each time after opening; if the carton is no longer available, store the bottle away from light [4]. Foundayo bottles come with desiccant and a child-resistant closure [4].
Can I fly with GLP-1 pens?
The 86°F ceiling and the day counts set the limits for travel. A Zepbound or Mounjaro single-dose pen can be out of the refrigerator for a total of 21 days at up to 86°F [3][7], an Ozempic pen for 56 days after first use [1], and a Wegovy FlexTouch pen for 56 days after first use [2].
At the airport, TSA allows larger amounts of medically necessary liquids, gels, and aerosols in reasonable quantities for a trip, but travelers must declare them to security officers at the checkpoint for inspection [6].
Cooling packs have their own rules. Frozen liquid items and gel packs are allowed through the checkpoint as long as they are frozen solid when presented for screening; if they are partially melted, slushy, or have liquid at the bottom of the container, they must meet the 3-1-1 liquids requirements [6]. Medically necessary gel ice packs in reasonable quantities are allowed regardless of their physical state of matter, melted or slushy, and travelers should notify the TSA officer at the checkpoint for inspection [6].
One caution when packing: a frozen pack pressed directly against a pen can freeze the medicine, and every one of these labels forbids freezing and says not to use a product that has been frozen [1][2][3][7]. The Novo labels also warn against storing pens directly adjacent to a refrigerator cooling element for the same reason [1][2].
Quick summary of out-of-fridge allowances
- Ozempic pen and Wegovy FlexTouch pen: 56 days after first use at 59°F to 86°F [1][2]
- Ozempic single-dose prefilled syringe and Wegovy single-dose pen or syringe: 28 days [1][2]
- Saxenda pen: 30 days after first use [5]
- Zepbound and Mounjaro single-dose pen or vial: 21 cumulative days at up to 86°F [3][7]
- Zepbound and Mounjaro multi-dose vial or KwikPen: 30 days, or 4 weekly doses, whichever comes first once opened [3][7]
- Wegovy tablets and Foundayo: no refrigeration, room temperature storage [2][4]
Sources
- Novo Nordisk. Ozempic (semaglutide) injection, prescribing information.
- Novo Nordisk. Wegovy (semaglutide) injection, prescribing information.
- Eli Lilly and Company. Zepbound (tirzepatide) injection, prescribing information.
- US Food and Drug Administration. FOUNDAYO (orforglipron) tablets, prescribing information. 2026.
- US Food and Drug Administration. Saxenda (liraglutide) injection, prescribing information. 2023.
- Transportation Security Administration. What Can I Bring? Complete List (Alphabetical).
- Eli Lilly and Company. Mounjaro (tirzepatide) injection, prescribing information.
Frequently asked questions
How long can Mounjaro be out of the fridge?
A Mounjaro single-dose pen or single-dose vial can be stored unrefrigerated at up to 86°F (30°C) for up to a total of 21 days. An unopened multi-dose vial or KwikPen kept at room temperature should be thrown away after 30 days.
Does the 21-day tirzepatide allowance reset when the pen goes back in the fridge?
No. The Zepbound and Mounjaro labels say to discard the single-dose pen or vial after a total of 21 days at room temperature, and the total means the days are summed across all periods out of the refrigerator. Putting it back in the fridge does not restart the count.
Can an Ozempic pen be put back in the fridge after being at room temperature?
Yes. After first use, the Ozempic pen can be stored for 56 days at controlled room temperature of 59°F to 86°F or in a refrigerator at 36°F to 46°F. The same 56-day limit applies either way, and the pen must not be frozen.
What if my pen froze?
Do not use it. Every label for Ozempic, Wegovy, Zepbound, Mounjaro, and Saxenda says not to freeze the product and not to use it if it has been frozen. The Zepbound and Mounjaro pen instructions say to throw the pen away and use a new one.
Is a slightly yellow Zepbound or Mounjaro pen normal?
Yes. Both labels describe the solution as clear and colorless to slightly yellow, so a slight yellow tint is within the normal appearance. Do not use it if particulate matter or discoloration is seen, or if the medicine is cloudy.
Do I need to warm a Zepbound or Mounjaro pen before injecting?
No. The pen Instructions for Use for both Zepbound and Mounjaro state that it is not necessary to warm the pen to room temperature before injecting.
How long is an opened Zepbound or Mounjaro multi-dose vial good for?
Throw away an opened multi-dose vial or KwikPen at the earliest of three points: a total of 30 days at room temperature, 30 days after first use, or after taking 4 weekly doses, even if medicine is left in it. Store the opened vial in its original carton, refrigerated or at up to 86°F.
Do Wegovy tablets need refrigeration?
No. Store Wegovy tablets at 68°F to 77°F, with excursions permitted to 59°F to 86°F. Keep them in the original closed bottle until use and store them in a dry place away from moisture.
This article summarizes FDA labeling, published research and company information current as of September 14, 2026. It is not medical advice and does not replace a conversation with your own healthcare provider. How we research and verify.