Yes — Byetta is kept in the refrigerator until it is needed, and never frozen. Its label then allows: pen, after first use: up to 77°F (25°C), and discarded 30 days after first use.
What if Byetta was left out of the fridge?
It is generally still usable within the room-temperature allowance on the label above. Past that allowance, or after heat above the labeled limit or any freezing, it should not be used. If you are unsure how long it sat out or how warm it got, call your pharmacist before injecting rather than guessing.
Traveling with Byetta
For trips, carry Byetta in an insulated bag with a cold pack (not directly touching the pen, to avoid freezing) and keep it in your carry-on, never a checked bag or a hot car. At your destination, refrigerate any unopened pens. Airport security allows medically necessary medication and cold packs; a pharmacy label or prescription can smooth the screening.
When to take Byetta
Twice daily, within the 60 minutes before the morning and evening meals (or the two main meals, about 6 hours or more apart), never after a meal If you miss a dose: Skip the missed dose and resume with the next scheduled dose. Do not inject after a meal.
Common questions
Does Byetta need to be refrigerated?
Unopened Byetta is kept in the refrigerator (36–46°F / 2–8°C). Its label then allows a defined stretch outside it: up to 77°F (25°C), and discarded 30 days after first use. Never freeze an injectable pen; if it freezes, do not use it.
How long can Byetta stay out of the fridge?
Up to 77°F (25°C), and discarded 30 days after first use, per the Byetta label (pen, after first use). Limits differ by drug — Trulicity allows 14 days, the tirzepatide single-dose pens 21, a Wegovy pen 28 out of the fridge, and an Ozempic pen 56 from first use — so do not carry a figure over from a previous medication. If you are unsure how long yours sat out, ask your pharmacist before using it.