How to Store Basaglar KwikPen and Tempo Pen
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[Storage · Basaglar]

How to store Basaglar (insulin glargine)

Quoted from the US label · Unopened vs in use · Travel · Sources · Reviewed

Short answer: Keep unopened Basaglar KwikPen and Tempo Pen in the fridge at 36-46°F (2-8°C) until the expiration date, or up to 86°F (30°C) for 28 days. After first use, keep the pen at room temperature up to 86°F for up to 28 days; do not refrigerate it. Do not freeze Basaglar, and do not use it if it froze. Source: Basaglar label, section 16.2, and Instructions for Use.

What does the Basaglar label say?

Section 16.2: “Protect BASAGLAR from heat and light. Do not freeze BASAGLAR. In-use BASAGLAR prefilled pens must be used within 28 days or be discarded, even if they still contain BASAGLAR.”

Basaglar US prescribing information, section 16.2 storage table.
PenUnopened, room temp (up to 86°F)Unopened, refrigeratedIn use, room temp (up to 86°F)
3 mL KwikPen28 daysUntil expiration date28 days, do not refrigerate
3 mL Tempo Pen28 daysUntil expiration date28 days, do not refrigerate

Basaglar comes only as prefilled pens; the label lists no vial. The Patient Information has no storage section; the storage text for patients is in each pen’s Instructions for Use.

What do the Instructions for Use say?

  • Unused pens: “Store unused Pens in the refrigerator at 36°F to 46°F (2°C to 8°C). Do not freeze BASAGLAR. Do not use if it has been frozen.” Kept in the fridge, they can be used until the expiration date on the label.
  • In-use pen: “Store the Pen you are currently using at room temperature [up to 86°F (30°C)] and away from heat and light. Throw away the Pen you are using after 28 days, even if it still has insulin left in it.”
  • “Do not store the Pen with the Needle attached to prevent leaking, blocking the Needle, and air from entering the Pen.”

Basaglar is insulin glargine, like Lantus and Semglee, but each has its own label. See the Basaglar dosing schedule, Basaglar side effects and missed a Basaglar dose.

How do you travel with it?

An in-use Basaglar pen travels at room temperature, up to 86°F (30°C), for the rest of its 28 days. Unopened spares can stay cold; out of the fridge they have 28 days. Keep them off direct contact with an ice pack, since frozen Basaglar is not used.

  • TSA allows medically necessary liquids over 3.4 oz in carry-on bags; declare them at the checkpoint for inspection.
  • Unused syringes and pen needles are allowed when they travel with the injectable medicine.
  • Ice packs and gel packs that keep medicine cool may go through frozen, partly frozen or melted.
  • Keep medicine in your carry-on, not checked luggage, where you cannot control the temperature. Do not let it touch an ice pack directly, since most labels say do not freeze.

More in the travel guide.

Quoted from the current US label on DailyMed, not personalized advice. Labels change; the leaflet in your own carton, your pharmacist and your prescriber are the final word on how to store it.
LantusUnopened in the fridge; 28 days once opened; in-use SoloStar pens at room temperature only. SemgleeUnopened in the fridge or 28 days out; in-use pens at room temperature only. ToujeoNew pens in the fridge; in-use pens at room temperature only, 56 days. Left out of the fridgeExact room-temperature hours and days from each label, and the temperature ceiling.

Frequently asked questions

How long is Basaglar good once opened?+
28 days at room temperature up to 86°F (30°C), for both the KwikPen and the Tempo Pen.
Should I refrigerate my Basaglar pen after I start using it?+
No. The storage table says in-use pens are kept at room temperature and not refrigerated.
How long can an unopened Basaglar pen be out of the fridge?+
28 days at room temperature up to 86°F (30°C).
Can I use Basaglar that froze?+
No. The Instructions for Use say do not use it if it has been frozen.

Sources

  1. Basaglar (insulin glargine) KwikPen and Tempo Pen US prescribing information, Patient Information and Instructions for Use, DailyMed, version of August 10, 2026
  2. TSA: Liquid medications
  3. TSA: Unused syringes
  4. TSA: Gel ice packs

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