


NovoPen 4 is a reusable insulin injection pen designed to help people with type 1 or type 2 diabetes administer insulin. It works with compatible 3 mL PenFill insulin cartridges and delivers insulin doses from 1 to 60 units in 1-unit increments. The NovoPen 4 insulin pen is commonly used by patients who require precise insulin dosing using PenFill insulin cartridges.
Key information about NovoPen 4 is summarized below:
| Category | Information |
|---|---|
| Product Name | NovoPen 4 |
| Device Type | Reusable insulin delivery pen |
| Manufacturer | Novo Nordisk |
| Dose Range | 1 to 60 units per injection |
| Dose Increment | 1-unit increments |
| Compatible Cartridges | 3 mL PenFill insulin cartridges |
| Compatible Needles | NovoFine disposable needles |
| Intended Use | Insulin delivery for diabetes management |
| Reusability | Reusable device |
| Storage | Store at 59°F-86°F (15°C-30°C) when a PenFill insulin cartridge is inserted. Follow the storage instructions provided with the insulin cartridge. |
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NovoPen 4 is used to administer insulin injections to individuals with diabetes who require insulin therapy to maintain stable blood glucose levels. It may be used by people with:
Type 1 diabetes:
Type 2 diabetes:
Insulin therapy administration:
NovoPen 4 works by delivering insulin from a cartridge through a disposable needle into the subcutaneous tissue (under the skin). The device operates through the following steps:
This mechanism helps ensure the correct insulin dose is delivered during each injection.
Follow your healthcare provider’s instructions when using NovoPen 4. General guidelines include:
Insulin injections using the NovoPen 4 are typically given into the subcutaneous tissue (the fat layer under the skin). Common injection sites include:
Injection sites should be rotated within the same area to help reduce the risk of lipodystrophy or skin changes.
NovoPen 4 does not contain insulin itself. Instead, it delivers insulin doses from compatible cartridges according to a healthcare provider’s prescription.
| Dosing Detail | Information |
|---|---|
| Dose Range | 1 to 60 units per injection |
| Dose Increment | 1-unit increments |
| Maximum Single Dose | 60 units per injection |
| If More Than 60 Units Are Needed | The dose may need to be divided into multiple injections |
| Insulin Source | Delivered from compatible 3 mL PenFill insulin cartridges |
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Patients should always follow the insulin dosing instructions provided by their healthcare professional.
NovoPen 4 is designed to work with 3 mL PenFill insulin cartridges. Depending on the treatment plan prescribed by a healthcare professional, compatible cartridges may contain different insulin types such as:
Patients should always use the insulin prescribed by their healthcare provider.
NovoPen 4 itself does not contain medication. However, some reactions may occur due to insulin therapy or the injection process.
Some users may experience mild reactions at the injection site, such as:
Rotating injection sites may help reduce these reactions.
Serious effects are generally associated with insulin therapy rather than the delivery device. These may include:
This is not a complete list of side effects. Contact your healthcare provider for medical advice about adverse reactions. You may report side effects to the FDA at 1-800-FDA-1088 or visit MedWatch.
Keep the following warnings and precautions in mind when using NovoPen 4:
NovoPen 4 itself does not contain medication, so the device does not have direct drug interactions. However, interactions may occur with the insulin used in compatible PenFill cartridges. Certain medications may affect blood glucose control and insulin requirements. Examples include:
Patients should inform their healthcare provider about all supplements, over-the-counter drugs, and prescription medications they are taking before adjusting insulin therapy.
Other insulin delivery devices may be recommended depending on the insulin type and patient preference.
| Device | Type |
|---|---|
| NovoPen 5 | Reusable insulin pen |
| FlexPen | Prefilled disposable insulin pen |
| HumaPen Luxura | Reusable insulin pen |
| SoloStar | Prefilled insulin pen |
| Insulin syringe and vial | Traditional injection method |
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Brand availability may vary depending on location and pharmacy supply. A healthcare provider will determine the most appropriate option based on the patient’s insulin therapy plan.
Diabetes supplies may be costly at many U.S. retail pharmacies. Ordering NovoPen 4 online from Polar Bear Meds may help reduce overall costs while maintaining safety, quality, and reliability.
Medications are dispensed by licensed pharmacies that comply with applicable pharmacy regulations and safety standards.
This content is for informational purposes only and does not replace expert medical guidance, diagnosis, or treatment. NovoPen 4 is an insulin delivery device used with compatible insulin cartridges for diabetes management. Always consult an authorized healthcare professional before starting, stopping, or changing the dosage. Individual results, side effects, and dosing needs may vary.

Dr. Jackson Miller is a board-certified medicine physician & hospitalist. He is a healthcare professional with a strong background in patient care. With years of experience and a patient-first approach, he believes the foundation of good health is a patient who feels informed and empowered. He contributes to medical content review, drawing on his background in clinical practice and patient education. He focuses on presenting health information in a clear, accurate, and accessible way to help readers make informed decisions. His work emphasizes clarity, evidence-based guidance, and understandable explanations of medical topics.
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