NovoPen 4® Reusable Pen for Insulin Delivery

This reusable insulin pen is designed for Penfill cartridges. It supports accurate insulin delivery for routine diabetes care at home or on the go. Use this page to check compatibility, setup basics, and access options with US shipping from Canada, including typical costs without insurance.

What NovoPen 4® Is and How It Works

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NovoPen 4® is a durable, refillable insulin injection device used with 3 mL Penfill cartridges. It converts your dialed dose into a controlled piston movement that pushes insulin from the cartridge through a single-use pen needle. Audible and tactile clicks help confirm dose setting and end of dose when used correctly.

The treatment is engineered for reliable day-to-day use. A clear dose window, smooth plunger mechanics, and a protective cap support consistent handling. It pairs with compatible pen needles and Penfill cartridges for a compact, portable setup. For general device context, see our guide on Insulin Pens and learn more about cartridges in Insulin Cartridges Types.

Who It’s For

This device is intended for people who self-inject insulin using Penfill cartridges, as directed by a healthcare professional. Insulin pen device for adults. Adolescents may use it when trained and supervised as advised by their clinician. Do not use this pen if you cannot read the dose window or cannot operate the dial and injection button safely. People who prefer audible and tactile feedback during dosing may find this design helpful.

Dosage and Usage

Use this pen only with the insulin and dose schedule prescribed for you. Read the official instructions for the pen and your specific insulin before first use. Practice with an empty device or training cartridge if provided.

• Gather supplies: the pen, a compatible Penfill cartridge, a new pen needle, alcohol swab, and a sharps container.
• Insert a new cartridge as directed in the device instructions.
• Attach a new needle before each injection; perform the safety check/priming steps per the insulin label.
• Insulin pen dosage dial 1 unit increments.
• Confirm the dose in the window before injecting.
• Inject into recommended sites as instructed on your insulin label; keep the needle in place for the advised hold time.
• Remove and discard the needle in a sharps container after each dose; recap and store the pen safely.

Never share the pen or needles. For any uncertainty about dose technique, timing with meals, or site rotation, follow your insulin label and consult your clinician.

Strengths and Forms

Novo Nordisk NovoPen 4 is a reusable pen body designed for ongoing use with compatible cartridges and pen needles. Availability may vary by location.

• Compatible cartridges: Penfill format, typically 3 mL vials designed for pen use.
• Supported insulin concentration: U-100 human insulin products that are labeled for Penfill use.
• Presentation: pen body, protective cap, and dose dial; cartridges and needles supplied separately.

Check the carton and insert to confirm compatibility for your specific insulin. If unsure, ask your prescriber or pharmacist.

Missed Dose and Timing

If you miss an insulin dose, follow your insulin label’s directions or contact your clinician for guidance. Do not inject extra units without clinical advice. Timing rules vary by insulin type, meal timing, and glucose readings. When in doubt, refer to the official insulin information and your care plan. Keep backup supplies available in case a needle becomes bent, dull, or unavailable at the time of dosing.

Storage and Travel Basics

Store the pen body in a clean, dry place. Keep the cap on to protect the dose dial and button. Avoid extreme heat, cold, and direct sunlight. Follow your insulin label for storage of unopened and in-use Penfill cartridges. Do not freeze insulin. Keep all supplies out of reach of children and pets. For travel, carry spares of cartridges and needles, plus a copy of your prescription and a photo ID. Pack items in your hand luggage and avoid prolonged temperature exposure. For additional supplies, see Diabetic Insulin Supplies.

Pen Handling and Sharps Disposal

Penfill insulin cartridge pen 3 mL. Always use a new, compatible needle for each injection. Confirm the dose is visible and the needle is firmly attached before use.

• Perform the safety check/priming step every time you attach a new needle, as directed.
• Hold the pen steadily during injection and follow the recommended hold time to ensure the full dose is delivered.
• Remove the needle immediately after dosing; never store the pen with a needle attached.
• Dispose of used needles in an FDA-cleared sharps container or a puncture-resistant household container if permitted locally.
• Do not share the device. If the pen is damaged, do not use it.

Many users pair this pen with short, thin pen needles for comfort; see Nano Pro Pen Needles for an example. Never recap by hand if trained not to; follow local guidance for needle safety.

Benefits

Durable insulin pen for Penfill cartridges. This design offers clear dose visibility, audible and tactile feedback, and a comfortable grip. Many people value the ability to dial and adjust before injection. The device supports consistent everyday use when maintained and operated correctly.

• Refillable pen body, reducing packaging waste compared with disposable pens.
• Audible clicks during dial and at dose completion for feedback.
• Compact form factor for easy carrying.
• Simple cartridge replacement when switching between insulin types prescribed for different times of day.

Side Effects and Safety

• Local effects at the injection site: redness, mild pain, bruising, itching.
• Skin irritation or sensitivity to adhesives or disinfectants used during preparation.
• Bleeding or minor leakage if the needle is moved during injection.
• Device misuse or mechanical issues may lead to underdose or overdose.

Serious risks usually relate to the insulin administered, including hypoglycemia or hyperglycemia if doses are incorrect or missed. Seek medical help for severe symptoms such as confusion, loss of consciousness, or signs of infection at the injection site. Keep an emergency plan for low blood glucose and discuss rescue options such as a Glucagon Injection Kit with your clinician.

Drug Interactions and Cautions

The pen has no medicine interactions itself. Interactions and precautions come from the insulin inside the cartridge and any other medicines you take. Use only Penfill cartridges that are labeled for use with this device. Do not mix different insulins in one cartridge. Avoid sharing the pen or needles. If your other therapies change, ask your clinician whether your insulin plan or device settings need review. Report any device damage, sticking buttons, or unclear dose windows before use.

What to Expect Over Time

After initial training, most users develop a steady routine for site rotation, dose dialing, and needle changes. The treatment can support stable day-to-day dosing when used as instructed. Expect to replace cartridges regularly and dispose of needles after each use. Periodically inspect the pen for cracks, a loose cap, or stiff mechanics, and follow the insert for cleaning instructions. If you experience repeated dosing difficulties, speak with your healthcare professional about technique or device alternatives.

Compare With Alternatives

Some patients use disposable prefilled pens for specific insulins, avoiding cartridge changes but discarding the pen when empty. Others use vial-and-syringe methods for dosing flexibility and broad insulin selection. If you and your prescriber prefer a non-pen option, consider Ultrafine II Syringes. For combination therapy delivered in a disposable device, discuss options like a Prefilled Pen when clinically appropriate.

Pricing and Access

Check device availability, Canadian pricing, and payment options on this page. Order NovoPen 4 online. You can review cash price and out-of-pocket details on the product page without creating an account. We provide US delivery from Canada with clear fulfillment updates. For compatible cartridges, see Levemir® Penfill Cartridges. For occasional coupons, visit our Promotions page. Secure checkout includes encrypted processing for your information.

Availability and Substitutions

Supply varies by warehouse and manufacturer distribution. If the device becomes unavailable, your prescriber may recommend a different pen platform, a disposable pen for a selected insulin, or a vial-and-syringe approach. We cannot confirm restock dates in advance. Review the official labeling for any alternative before switching.

Patient Suitability and Cost-Saving Tips

This platform may suit people who want a refillable pen, audible dosing feedback, and compatibility with Penfill cartridges. It may not be suitable for users unable to see the dose window or operate the injection button safely. Ask your clinician if training or an alternative device is better for your needs.

• Consider multi-month orders for cartridges and needles when appropriate.
• Set refill reminders so you do not run out mid-travel or on weekends.
• Bundle pen needles with cartridges to reduce separate shipments.
• Discuss self-pay versus insurance coverage to manage overall costs.

Questions to Ask Your Clinician

• Am I using the correct cartridge type for this device?
• What injection sites and hold time are appropriate for my insulin?
• How should I prime and troubleshoot if flow seems blocked?
• Which pen needle length and gauge are suitable for me?
• What travel steps should I follow for storage and documentation?
• When should I replace my pen if parts feel worn or loose?

Authoritative Sources

Novo Nordisk

FDA DailyMed

Health Canada DPD

Buy NovoPen 4 from CanadianInsulin for prompt, express shipping with temperature-controlled handling when required. Ships from Canada to US. This information is not a substitute for professional medical advice. Always read the label and follow your prescriber’s directions.