R R

What Is Novolin N?

Novolin N is an intermediate-acting human insulin medication used to improve blood sugar control in adults and children with diabetes mellitus. It contains insulin isophane human, also called neutral protamine Hagedorn or NPH insulin. Novolin N is a cloudy suspension administered by subcutaneous injection. It is available in U-100 strength, containing 100 units of insulin per milliliter. Its action lasts longer than regular short-acting human insulin, supporting basal insulin coverage.

Link to This Resource Page

Provide a valuable resource to your clients or customers by linking to this resource page. Just place the following link on your website.

To display this...

What Is Novolin N?

Novolin N is an intermediate-acting human insulin medication used to improve blood sugar control in adults and children with diabetes mellitus. It contains insulin isophane human, also called neutral protamine Hagedorn or NPH insulin. Novolin N is a cloudy suspension administered by subcutaneous injection. It is available in U-100 strength, containing 100 units of insulin per milliliter. Its action lasts longer than regular short-acting human insulin, supporting basal insulin coverage.

read more about novolin n ...

Copy this HTML:

Copy HTML Copied!

How Does Novolin N Work?

Novolin N helps lower blood glucose by increasing the uptake of glucose into muscle and fat cells and reducing glucose production by the liver. Its formulation contains protamine, which slows insulin absorption after injection beneath the skin. This produces an intermediate duration of action with a noticeable peak rather than the relatively flat activity of some long-acting insulin analogs. The onset, peak, and duration vary according to dose, injection site, physical activity, and individual physiology.

Who Uses Novolin N for Diabetes?

Novolin N is used to improve glycemic control in adults and pediatric patients with diabetes mellitus, including type 1 and type 2 diabetes. In type 1 diabetes, it is generally used with a short-acting insulin to cover mealtime glucose increases. Some patients with type 2 diabetes use it as part of an individualized insulin treatment regimen. A healthcare professional determines whether intermediate-acting insulin is appropriate based on glucose patterns, meal schedules, and the risk of hypoglycemia.

How Should Novolin N Be Administered?

Novolin N is injected beneath the skin, commonly once or twice daily, according to an individualized prescription. The insulin suspension must be gently mixed as directed until uniformly white and cloudy before administration. Do not use it when clumps or particles remain after mixing. Injection sites should be rotated to reduce skin complications. Novolin N must not be given intravenously or through an insulin pump. When specifically instructed to mix it with Novolin R in a syringe, draw up the clear Novolin R first and inject the mixture immediately.

What Are the Side Effects and Warnings of Novolin N?

Hypoglycemia is the most common serious risk associated with Novolin N and can cause sweating, shakiness, confusion, seizures, or loss of consciousness. Other possible effects include weight gain, injection-site reactions, low potassium levels, and allergic reactions. Incorrect dosing or switching insulin products without appropriate supervision can cause dangerous glucose changes. Patients should monitor blood sugar as instructed, recognize hypoglycemia symptoms, and follow their diabetes treatment plan. Novolin N should not be administered during an episode of hypoglycemia.

Common Questions About Novolin N

Is Novolin N a long-acting insulin?

Novolin N is classified as intermediate-acting NPH insulin, rather than a long-acting basal insulin analog. Its activity has a noticeable peak and generally lasts less than 24 hours, although duration varies.

How often is Novolin N injected?

Novolin N is commonly injected once or twice daily. The exact schedule and dose are individualized according to blood glucose monitoring and clinical needs.

Why is Novolin N cloudy?

Novolin N is a suspension containing insulin combined with protamine, which slows absorption. It should appear uniformly white and cloudy after mixing according to the product instructions.

Can Novolin N cause low blood sugar?

Yes. Novolin N can cause hypoglycemia, including severe episodes. Blood glucose monitoring, appropriate meal planning, and correct dosing help reduce this risk.

References

DailyMed - NOVOLIN N (insulin isophane human) injection, suspension. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=82f1445c-b2c6-445a-82cf-ba8825fac776. Date Accessed October 19, 2026.

Human Insulin Injection. MedlinePlus. https://medlineplus.gov/druginfo/meds/a682611.html. Date Accessed October 19, 2026.

Isophane Insulin, Human. National Library of Medicine Medical Subject Headings. https://www.ncbi.nlm.nih.gov/mesh/2009895. Date Accessed October 19, 2026.

Novo Nordisk Product Library. Novo Nordisk Medical. https://www.novonordiskmedical.com/product-information/novonordisk.html. Date Accessed October 19, 2026.

NPH Insulin. StatPearls. https://www.ncbi.nlm.nih.gov/books/NBK549860/. Date Accessed October 19, 2026.