Short answer: The Fiasp label has a missed-dose rule in section 2.2: people on basal-bolus treatment who forget a mealtime dose monitor their blood glucose to decide if an insulin dose is needed, then resume their usual schedule at the next meal. The Patient Information says the same. Fiasp is injected at the start of a meal or within 20 minutes after starting one.
| Situation | What the label says |
|---|---|
| Timing | At the start of a meal or within 20 minutes after starting a meal (2.2) |
| Forgot a mealtime dose | Monitor blood glucose to decide if an insulin dose is needed (2.2) |
| Next dose | Resume the usual dosing schedule at the next meal (2.2) |
| Skipped-dose plan | Prescribers instruct patients on handling an inadequate or skipped insulin dose (17) |
| Used with | Generally an intermediate- or long-acting insulin when injected under the skin (2.2) |
Section 2.2: "Instruct patients on basal-bolus treatment who forget a mealtime dose to monitor their blood glucose level to decide if an insulin dose is needed, and to resume their usual dosing schedule at the next meal."
The Patient Information: "If you miss a dose of FIASP, monitor your blood sugar levels to decide if an insulin dose is needed. Continue with your regular dosing schedule at the next meal."
No. It says to check blood sugar to decide whether a dose is needed, but gives no amount and no time limit. Section 17 tells prescribers to teach patients how to handle special situations, including an inadequate or skipped insulin dose and an accidental extra dose. The details of that plan come from your diabetes team.
Section 5.3 says low blood sugar (hypoglycemia) is the most common adverse reaction of all insulin therapies, including Fiasp, and that severe hypoglycemia may be life-threatening.
No. Fiasp and NovoLog are both insulin aspart, but they have separate labels. The NovoLog label has no missed-dose rule; the Fiasp label does. NovoLog is timed 5 to 10 minutes before a meal, Fiasp at the start of a meal or within 20 minutes after starting it.
This page summarizes FDA labeling. It is not personalized medical advice; confirm what to do with your prescriber or pharmacist.