GLP-1 fridge timer: how long can your pen be out?
For planning and record-keeping only — not medical advice. Your dose and schedule are set by your prescriber.
Per the FDA labels: a Wegovy single-dose pen can stay out of the fridge up to 28 days, an Ozempic pen in use up to 56 days, and a Mounjaro or Zepbound single-dose pen or vial up to 21 days — each with a temperature ceiling. The multi-dose presentations count differently again, so pick the exact form you have and this timer counts how long yours has been out.
Pick a medication and form, then enter the date and time it left the fridge.
Nothing tracked yet — add the first one above. You can track several at once.
Timers are saved in this browser only — they don't sync anywhere, and clearing site data removes them.
KeepAlong — GLP-1 shot tracker & planning tools
A timer in this browser lives only in this tab — close it, clear site data, and the count is gone. In the KeepAlong app the same timer lives on your phone and sends a push notification before a label window runs out, which is the part a web page can't do.
The app is launching soon. The web tools on this site are free — no sign-up needed.
Label storage windows compared
Every number below comes from the current FDA prescribing information, linked per row and checked 2026-08-18. Watch what each window measures: the windows that start at first use — the Ozempic pen, the Wegovy FlexTouch, the tirzepatide multi-dose vial and KwikPen — keep counting in or out of the fridge, while a single-dose pen, syringe, or vial is measured by time spent out of the fridge before it's used.
| Product and form | Out-of-fridge window | Temperature limit | Source |
|---|---|---|---|
| Wegovy single-dose pen or syringe | Up to 28 days, before the cap comes off | 46–86°F (8–30°C) | Wegovy PI |
| Wegovy FlexTouch pen (four 2.4 mg doses) | Up to 56 days after first use — in or out of the fridge | 59–86°F (15–30°C) at room temperature | Wegovy PI |
| Ozempic pen | Up to 56 days after first use — the same clock runs in or out of the fridge | 59–86°F (15–30°C) at room temperature | Ozempic PI |
| Ozempic single-dose prefilled syringe | Up to 28 days | 46–86°F (8–30°C) | Ozempic PI |
| Mounjaro single-dose pen or vial | Up to 21 days total unrefrigerated | Up to 86°F (30°C) | Mounjaro PI |
| Mounjaro multi-dose vial or KwikPen | Up to 30 days at room temperature — and no later than 30 days after first use or four weekly doses | Up to 86°F (30°C) | Mounjaro PI |
| Zepbound single-dose pen or vial | Up to 21 days total unrefrigerated | Up to 86°F (30°C) | Zepbound PI |
| Zepbound multi-dose vial or KwikPen | Up to 30 days at room temperature — and no later than 30 days after first use or four weekly doses | Up to 86°F (30°C) | Zepbound PI |
One line every label shares: do not freeze, and do not use a pen, syringe, or vial that has been frozen — no out-of-fridge window applies to it. Storage is only half of the calendar math on GLP-1; for the other half — the earliest date each dose step can start — the titration date planner runs the same label-first approach. Storage is also covered product by product in the Ozempic tracker, Wegovy tracker, Mounjaro tracker, and Zepbound tracker guides.
Traveling with a GLP-1 pen
TSA allows injectable medication, pens, and needles through the checkpoint in carry-on bags and doesn't require any of it to be refrigerated — freezer packs for medication are allowed too, even partially melted. A climate-controlled cabin sits comfortably inside every temperature limit in the table above.
Cars are the opposite case. Every ceiling on this page is 86°F, and a closed car parked in the sun can pass 100°F inside within an hour, even on a mild day. The timer keeps counting while you travel, but it only counts time — it can't see a hot glovebox, and the temperature side of the label stays with you.
Travel is also when routines slip. The full traveling with GLP-1 checklist covers TSA rules and packing dates; the injection sites guide covers rotation when your shot happens away from home, and the GLP-1 shot tracker app keeps shot-day reminders on whichever phone is in your pocket.
When a window does run out, the pen still needs somewhere to go — GLP-1 sharps disposal covers what the FDA says about used pens, needles, and full containers.
Frequently asked questions
Does Ozempic need to be refrigerated?
Ozempic pens need refrigeration at 36–46°F before first use. After that the label allows either room temperature (59–86°F) or the refrigerator, and the pen is discarded 56 days after first use either way. The single-dose prefilled syringe is a separate form: refrigerated, or 46–86°F for up to 28 days.
I left my Ozempic out overnight — what does the label say?
For a pen in use, overnight at room temperature sits inside the label’s 56-day window, as long as the temperature stayed between 59 and 86°F. Enter the time it left the fridge above to see the exact count. For anything the label doesn’t cover — a hot car, an unopened pen — ask your pharmacist.
Do Mounjaro and Zepbound have the same storage window?
Mounjaro and Zepbound share storage windows form for form, since both are tirzepatide. Both FDA labels allow a single-dose pen or vial up to 21 days at no more than 86°F, with refrigeration at 36–46°F as the default. Multi-dose vials and KwikPens instead run 30 days, or four weekly doses, whichever comes first. Neither may be frozen.
When is this timer not enough?
The timer only counts time — it has no idea what temperature your pen actually saw. A hot car, a freezer mix-up, a pen that left the fridge on a date nobody wrote down: in all of those the count doesn’t answer the question, and your pharmacist is the right call.
KeepAlong is an independent app and website. Not affiliated with, endorsed by, or sponsored by Novo Nordisk or Eli Lilly.