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Levemir PenFill Cartridges

Levemir® PenFill Cartridges for Diabetes

Please note: a valid prescription is required for all prescription medication.

Also available for your pet.

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Levemir® PenFill Cartridges contain insulin detemir for basal glucose control. This long-acting insulin supports day and night coverage in diabetes management. You can access Canadian pricing with US shipping from Canada, including options for those paying without insurance.

What Levemir Is and How It Works

This medicine contains insulin detemir, a long-acting basal insulin analog. It helps reduce hepatic glucose output and improves peripheral glucose uptake. The treatment has a relatively flat activity profile compared with mealtime insulin. It is not a rapid-acting insulin and does not replace bolus doses for meals.

CanadianInsulin.com is a prescription referral platform. We verify prescriptions with your prescriber when required, and licensed Canadian pharmacies dispense your order.

It is suitable for use in compatible reusable pens. The class provides background insulin to complement diet, activity, and other antidiabetics when needed.

Who It’s For

This treatment is indicated for adults with type 1 or type 2 diabetes who need basal insulin support. Pediatric use may be appropriate for type 1 diabetes when prescribed. People with hypersensitivity to insulin detemir or formulation components should avoid it. Those with recurrent severe hypoglycemia require careful supervision.

When considering long-acting options, your clinician may compare this therapy with other basal insulin choices. See additional context in Long-Acting Insulin and the condition pages for Type 1 Diabetes and Type 2 Diabetes.

Dosage and Usage

Dosing is individualized. It may be given once daily or split into two doses, often evening and morning, to cover 24 hours. Give by subcutaneous injection only into the thigh, abdomen, or upper arm. Rotate injection sites within a region to reduce skin changes.

Use a compatible pen device to deliver the cartridge dose. Prime per device instructions before each use. Administer the basal dose at consistent times each day. Do not inject intravenously or use in an insulin pump. If your pen or needle seems damaged, replace it before injecting.

Product labeling identifies the formulation as Levemir PenFill cartridges 100 units/mL. For patient-specific titration and all safety limits, follow the official prescribing information and your prescriber’s guidance.

For technique and timing context, see this concise Dosage Guide covering basal insulin routines. General information about cartridges and delivery is available in Insulin Cartridge Basics. Broader insulin information is in Insulin Medications.

Strengths and Forms

The treatment is supplied as PenFill cartridges for use with compatible reusable pens. A common presentation is 3 mL cartridges packaged as a 5×3 mL pack. The concentration is 100 units/mL (U-100). Availability can vary by batch and pharmacy.

Cartridges are designed for pen dosing only. Always confirm your pen is compatible before use.

Missed Dose and Timing

If you miss a basal dose, check your blood glucose and follow the plan you discussed with your care team. If it is close to the next scheduled dose, skip the missed dose to avoid stacking. Do not double the next dose. Contact your prescriber for individualized advice if you are unsure.

Storage and Travel Basics

Unopened cartridges should be kept refrigerated and protected from light. Do not freeze. If a cartridge was frozen, discard it. In-use cartridges are typically stored at room temperature away from heat sources; follow the product label for in-use time limits. Keep all insulin out of reach of children and pets.

When you travel, carry your insulin in your hand luggage with your prescription or a copy of your order. You can use a travel case with cooling elements to keep temperatures consistent. If you change time zones, keep your schedule consistent and consult your care team for timing alignment. For added assurance, temperature-controlled handling when required supports product integrity during fulfillment.

Pen Handling and Sharps Disposal

Use the cartridge only in a compatible reusable pen. Attach a new needle for each injection, prime per the pen’s instructions, and confirm the dose before injecting. Do not share pens or needles, even with family members. After use, remove the needle and dispose of it in a puncture-resistant sharps container.

Many patients use Novo Nordisk reusable pens. If you need a compatible device, review NovoPen 4 specifications and training materials. Some patients also use other PenFill format insulins; see Novolin GE NPH for a different insulin class that uses cartridges.

Benefits

This basal insulin provides steady background coverage to complement mealtime doses when used. It may reduce overnight glucose elevations and support more stable fasting levels. Cartridges used in a compatible pen can make dose dialing straightforward. Reusable pens may also reduce plastic waste compared with disposable pens.

Side Effects and Safety

  • Low blood sugar symptoms such as shaking, sweating, hunger, or confusion
  • Injection site redness, swelling, itching, or discomfort
  • Skin thickening or indentations at injection sites
  • Weight gain or fluid retention
  • Allergic reactions like rash; severe reactions are rare

Severe hypoglycemia can occur and may require assistance. Beta blockers can mask adrenergic symptoms of low blood sugar. Edema may worsen with certain antidiabetics. Seek urgent care for severe allergic reactions, including swelling of the face or throat, difficulty breathing, or widespread hives. For a focused discussion of adverse effects, read our Side Effects Guide.

Drug Interactions and Cautions

Drugs that may increase insulin effect include antidiabetics, ACE inhibitors, and some antidepressants. Agents that may reduce effect include corticosteroids, diuretics, and certain antiretrovirals. Beta blockers may mask low blood sugar warning signs. Alcohol can increase the risk of hypoglycemia.

Use caution with renal or hepatic impairment. Do not mix with other insulins in the same syringe or pen. This insulin is not for intravenous use or pump systems. Discuss pregnancy and breastfeeding considerations with your clinician.

What to Expect Over Time

Basal insulin needs may change with diet, activity, illness, or weight changes. Your prescriber may adjust your dose based on fasting readings and overall control. Expect your plan to be reviewed periodically to maintain safety and effectiveness. Consistency with injection timing and site rotation can help support stable outcomes.

Compare With Alternatives

Several basal insulins can fill a similar role. Cartridges containing insulin glargine are common options; see Lantus Cartridges for a reference product. An approved follow-on option is Basaglar Cartridges. Your prescriber will choose based on your history, dosing schedule, and response.

Pricing and Access

Many customers compare options by pharmacy source and formulation. If you pay cash, you may consider the Levemir PenFill cash price relative to therapeutic alternatives. Our platform displays current pack formats when available.

For savings tips and seasonal offers, see our Promotions page. We provide transparent checkout and US delivery supported by licensed Canadian pharmacies. If an item is unavailable, the pharmacy team can suggest contacting your prescriber about a comparable option.

Availability and Substitutions

Supply can change due to manufacturing or distribution updates. If your product is not available, your prescriber may recommend a clinically appropriate alternative in the same class. Switching requires a new prescription when dose or insulin type changes.

Patient Suitability and Cost-Saving Tips

Good candidates can use a pen device reliably, monitor glucose, and follow a basal plan. Those with frequent severe lows, recent hospitalizations, or significant comorbidities need closer supervision. Discuss any recent steroid use or planned surgery with your clinician.

To reduce costs, ask about multi-pack fills if appropriate for your therapy. Set refill reminders so you do not run out during travel. Consolidating orders can reduce per-shipment fees. Review your insurer’s formulary and consider flexible spending accounts when available.

Questions to Ask Your Clinician

  • Is once-daily or twice-daily basal dosing more suitable for me?
  • How should I adjust my plan around exercise or illness?
  • What are clear steps for treating hypoglycemia at home?
  • Which pen and needle size work best for my dose range?
  • How long can my in-use cartridge be kept at room temperature?
  • What signs suggest site rotation or technique changes are needed?

Authoritative Sources

For full prescribing and safety details, consult the official documents below:

For convenient ordering, you can order Levemir PenFill cartridges online with prompt, express, cold-chain shipping.

Medical disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice.

Customer Reviews
2.0 Based on 4 Reviews
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D(
08/22/2025
Dorothy (.
US US

Horrible Service

I have been trying to get the insulin for my dog for over a month. It is absolutely ridiculous that it has taken so long to get to get it. One shipment did arrive 2 weeks ago, but it was hot. There was minimal Ice packing did nothing to protect it during transit. It has taken more than two weeks and several calls and emails to receive a replacement. In fact I still have not received it. Our vet has contacted you several times stating the critical need, but to no avail. Its very unfortunate that there is such little care and concern for my dog's life from your company.

08/23/2025

CanadianInsulin.com

Dear Dorothy, We are truly sorry for the distress and inconvenience you’ve experienced with your recent order. We understand how critical this medication is for your dog’s health, and we deeply regret the delays and the condition of the initial shipment you received. This is not the level of service we strive to provide, and we recognize the seriousness of the situation. To ensure that your concerns are addressed promptly and thoroughly, we are assigning a dedicated Account Manager from our team who will coordinate closely with you to confirm the safe receipt of your replacement order, provide timely updates, and ensure your dog’s ongoing medication needs are fully met without further disruption. We greatly value your feedback as it helps us identify areas where we must do better, and please rest assured that we are reviewing this case closely to prevent a recurrence. Thank you for your patience and for allowing us the opportunity to make this right. We look forward to continuing to serve you and are always here if you need any assistance. Thank you for choosing Canadian Insulin!

EY
09/04/2023
Emma Y.
US US
I recommend this product

Terrible Customer Services

Would love to tell you but ever got delivered to the correct address!!! Phoned to place my order as had had a terrible service previous time (they completely made up what my prescription said so reduced order to 1 box instead of 3 ordered) this time wanted to make sure they understood how to read the same prescription but appears when you phone them they don’t have the same info as the online system so they sent it to an address I lived at 4 years ago and then had the audacity to say it must have been a mix up!! Can’t be right as have moved twice since that address!!!! So now am waiting for new insulin to arrive which they still have to process the same way so could take 10 days and only have enough insulin to last about 4, don’t worry they informed me just go to a local pharmacy and get!!!! Hello I don’t have a prescription you do and to get a new one is a complete hassle….. Whole thing has been a nightmare!!!

09/07/2023

CanadianInsulin.com

Hi Emma, Thank you for bringing this to our attention. We sincerely apologize for the issues you've faced with your order and the inconvenience caused. This falls short of the service standards we strive to maintain. We understand your frustration with the incorrect delivery address and the challenges you're now facing. Our team will take the necessary steps to avoid similar incidents in the future. We'll assign someone from our Team to be in touch with you urgently to address this matter. We are committed to making this right and providing you with the support you need. Your experience is important to us and we value your patience and understanding.

EY
06/08/2023
Emma Y.
US US
I recommend this product

Shambles

The item is fine, your processing of my order, your lack of understanding of how to read a prescription which will now cost me extra money is appalling and your dealing with my complaint which is now 2 weeks outstanding is extremely poor

06/12/2023

CanadianInsulin.com

Hi Emma, Thank you for reaching out to us with your feedback. We sincerely apologize for any inconvenience you have experienced regarding the processing of your order and the misinterpretation of your prescription. We understand the frustration caused and we will take up this matter with utmost urgency. We will take immediate action to improve our prescription process and address the issues you've raised. To do so, we'll assign someone to get in touch with you to gather more details and offer suitable resolution. We appreciate your patience and looking forward to resolving this matter to your satisfaction.

CW
01/06/2023
Cleo W.
US US
I recommend this product

AWESOME

My dog uses this for his diabetes and it woks wonders for him. It reALLY KEEPS him on track!

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