Short answer: Keep unopened Fiasp in the fridge at 36-46°F (2-8°C) until the expiration date, or up to 86°F (30°C) for 28 days. Once in use, vials and FlexTouch pens last 28 days in the fridge or up to 86°F; PenFill cartridges last 28 days and are not refrigerated. PumpCart cartridges have shorter limits. Never use Fiasp that froze. Source: Fiasp label, section 16.2.
Section 16.2: “Unused FIASP vials should be stored between 2° to 8°C (36° to 46°F) in a refrigerator, but not in or near a freezing compartment. FIASP should not be exposed to excessive heat or light and must never be frozen. Do not use FIASP if it has been frozen. FIASP should not be drawn into a syringe and stored for later use.”
| Form | Unopened, room temp (up to 86°F) | Unopened, refrigerated | In use, room temp | In use, refrigerated |
|---|---|---|---|---|
| 10 mL multiple-dose vial | 28 days | Until expiration date | 28 days (up to 86°F [30°C]) | 28 days |
| 3 mL FlexTouch pen | 28 days | Until expiration date | 28 days (up to 86°F [30°C]) | 28 days |
| 3 mL PenFill cartridge | 28 days | Until expiration date | 28 days (up to 86°F [30°C]) | Do not refrigerate |
| 1.6 mL PumpCart cartridge | 18 days | Until expiration date | 4 days (up to 98.6°F [37°C]) | Do not refrigerate |
Table footnotes: for a vial used to fill a pump, “The total in use time is 28 days, including 6 days in the pump reservoir.” For PumpCart: “The maximum time at room temperature is 18 days including 4 days in the pump.” Section 16.2 also says to keep the cap on the pen to protect it from light, to remove the needle after each injection and store the pen without a needle attached, and to keep unused vials, pens and cartridges in the carton.
No. Both are insulin aspart, but they have separate labels with different storage tables. The Fiasp table allows an in-use FlexTouch pen to be kept in the fridge for its 28 days; the NovoLog table says in-use FlexPen and FlexTouch pens are not refrigerated. Follow the label of the product you have.
Section 16.2: change Fiasp in the pump reservoir at least every 6 days, or as the pump manual says if that is shorter, and after exposure to temperatures above 98.6°F (37°C). Infusion bags prepared for IV use are stable at 68-77°F (20-25°C) for 24 hours.
See the Fiasp dosing schedule, Fiasp side effects, missed a Fiasp dose and the insulin pen glossary entry.
An in-use Fiasp pen or vial travels at room temperature, up to 86°F (30°C), for the rest of its 28 days. Unopened spares can stay cold until needed; once out of the fridge they have 28 days. Keep them off direct contact with an ice pack, since frozen Fiasp is not used.
More in the travel guide.