Short answer: The Novolin N label gives it once or twice daily under the skin, with the dose individualized by metabolic needs, glucose monitoring and glucose goals; it gives no fixed starting dose. In type 1 diabetes it is generally used with a short-acting insulin. It is never given into a vein or by insulin pump. The label has no missed-dose rule.
This is what the FDA label says. Follow your prescriber. Your prescriber may use a different dose or pace than the label's standard schedule.
What Novolin N is approved for: Novolin N is an intermediate-acting human insulin approved to improve blood sugar control in adults and children with diabetes (section 1).
Source
NOVOLIN N (insulin isophane human) injectable suspension, for subcutaneous use, prescribing information and Patient Information. Novo Nordisk. DailyMed, version published September 29, 2026. DailyMed setid 82f1445c-b2c6-445a-82cf-ba8825fac776
Novolin N is injected under the skin of the abdominal wall, thigh, upper arm or buttocks, rotating sites within the same region. It is a suspension mixed right before use: a vial is rolled gently 10 times, and a FlexPen is moved up and down 20 times, until evenly white and cloudy, then injected immediately (section 2.1).
It is U-100 (100 units/mL) in a 10 mL multiple-dose vial and a 3 mL FlexPen. It is not given into a vein and not used in an insulin pump (sections 2.1 and 3).
The table below is the label's schedule, from the Dosage and Administration section. Numbers are copied exactly; the section is in brackets.
| Situation | What the label says |
|---|---|
| How often | Once or twice daily |
| Dose | Individualized by metabolic needs, glucose monitoring and glucose goal; no fixed starting dose is given |
| Type 1 diabetes | Generally used in regimens that include a short-acting insulin |
| Route | Under the skin only; not into a vein and not by insulin pump |
| Mixing | With Novolin R in the same syringe; Novolin R drawn in first, then Novolin N; inject immediately |
| Switching from another insulin | The dose may need adjusting |
| Before each dose | Vial rolled 10 times or FlexPen moved up and down 20 times until uniformly white and cloudy |
| Presentation | Unopened, refrigerated 36-46 F | Unopened, room temperature | In use (opened), room temperature |
|---|---|---|---|
| 10 mL multiple-dose vial | Until expiration date | 42 days up to 77 F (25 C) | 42 days up to 77 F (25 C) (Do not refrigerate) |
| 3 mL FlexPen | Until expiration date | 28 days up to 86 F (30 C) | 28 days up to 86 F (30 C) (Do not refrigerate) |
Dose changes may be needed with changes in physical activity, meal content or timing, kidney or liver function, or during acute illness. Glucose is checked more often during any change to the insulin regimen.
The dose may need adjusting when Novolin N is used with certain other drugs.
Mixing the suspension back up is easier once the insulin has reached room temperature. It is not used if discoloration or particles are seen.
Novolin N vials and FlexPens are kept from excess heat or light, never frozen, and not used after the expiration date.
Patients are taught how to handle illness, stress, an inadequate or skipped insulin dose, an accidental extra dose, too little food and skipped meals. The label does not spell out what to do in each case.
The Novolin N label gives no missed-dose rule. Section 17 says patients are instructed on handling an inadequate or skipped insulin dose, but neither the prescribing information nor the Patient Information says what to do.
The dose may need adjusting when switching from another insulin to Novolin N.
Any change of insulin strength, maker, type, site or method is made under close medical supervision with more frequent glucose checks. In type 2 diabetes, other diabetes medicines may need adjusting.
In Dose Track you set up Novolin N as a protocol with the dose and schedule your prescriber gave you. A protocol can hold dose steps, each with its own dose and length in days or weeks, so a step-up plan like the one on the label can be entered once and the app moves to the next step on its own. Reminders follow the schedule, and every dose is logged with the date and time, so you can see which step you are on and when your last dose was. The app follows what you enter; it does not choose or change a dose.
This page is what the FDA label says, in plain words. It is not medical advice. Follow your prescriber, and ask them or your pharmacist about anything here.