Buy Humulin N Cartridges from Canada
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Humulin N Cartridge Insulin Isophane (Nph)
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Cold-Chain Shipping Notice

This medication requires specialized cold-chain packaging to help maintain its quality and integrity during transit. Each shipment includes a temperature indicator to monitor storage conditions throughout the shipping process.

Do NOT use this medication if the attached temperature indicator shows that it was exposed to temperatures below 2°C (36°F) or above 8°C (46°F). If the temperature indicator shows that the acceptable temperature range has been exceeded, or if you have any concerns about the condition of your shipment upon arrival, do not use the medication and contact our pharmacy immediately for further instructions and assistance.

Please inspect your shipment and the temperature indicator as soon as it is delivered.

What are Humulin N Cartridges?

Humulin N cartridges help control blood sugar levels in people with diabetes by providing intermediate-acting insulin.

This insulin works by allowing sugar to move from your blood into tissues like muscles, the liver, and fat, thereby reducing blood sugar levels and preventing complications associated with diabetes.

Each cartridge contains insulin isophane (NPH insulin), a biosynthetic human insulin produced using recombinant DNA technology that imitates the insulin naturally produced by your pancreas.

Humulin N works more slowly than regular insulin, starting its effect later but lasting up to 16-18 hours, making it ideal for managing blood sugar throughout the day. These cartridges are intended for subcutaneous injection only and should not be mixed with other insulins unless directed by your doctor.

People with a history of allergies to insulin isophane or experiencing low blood sugar (hypoglycemia) should avoid using Humulin N cartridges.

How Do Humulin N Cartridges Work?

Humulin N cartridges contain insulin isophane (NPH insulin), an intermediate-acting insulin that helps sugar move from the blood into the body’s cells. These cells can use sugar for energy or store it for later use.

After injection, Humulin N starts working more slowly than regular insulin but continues to control blood sugar for up to 16-18 hours.

This steady action helps manage blood sugar levels between meals and overnight.

By mimicking the basal insulin secretion of a healthy pancreas, Humulin N cartridges play a crucial role in keeping blood sugar balanced and reducing the risk of diabetes complications.

Dosage Information and Usage

Dosage Form and Strengths of Humulin N Cartridges

Humulin N cartridges are available in a 3 mL size and contain U-100 insulin, meaning 100 units per milliliter.

These cartridges are designed with reusable insulin pens, offering a precise and easy way to deliver insulin.

Each cartridge is prefilled and cannot be refilled or mixed with other insulins.

How to Use Humulin N Cartridges?

Follow these simple steps to use Humulin N cartridges correctly:

  1. Wash your hands.
  2. Roll the cartridge gently between your palms 10 times and invert it 10 times to thoroughly resuspend the insulin. It should look cloudy and uniform.
  3. Check for cracks, particles, or clumps. Do not use the cartridge if it is damaged or the insulin does not mix properly.
  4. Insert the cartridge into the reusable pen as directed by the manufacturer.
  5. Attach a new needle to the pen.
  6. Prime the pen to remove air bubbles by expelling two units of insulin until you see a drop at the needle tip.
  7. Turn the dose selector to match your prescribed dose.
  8. Choose a clean injection site and rotate injection locations to avoid skin problems.
  9. Insert the needle under the skin and inject the insulin as directed.
  10. Remove the needle after injection and dispose of it safely.

Side Effects

Humulin N insulin helps control blood sugar but may cause side effects. Common side effects include mild reactions like low blood sugar (hypoglycemia) or injection site redness.

However, some severe side effects, such as allergic reactions or diabetic acidosis, may require immediate medical attention.

Common Side Effects

These are some of the common side effects of using Humulin N insulin:

  • Low blood sugar (hypoglycemia) symptoms: shakiness, sweating, dizziness, or hunger.
  • Mild redness, swelling, or itching at the injection site.
  • Weight gain over time.
  • Thickening or thinning of skin at the injection site.

Severe Side Effects

Seek medical attention immediately if you experience any of the following severe side effects of Humulin N:

  • Severe low blood sugar: confusion, loss of consciousness, or seizures.
  • Signs of an allergic reaction: rash, trouble breathing, wheezing, or swelling of the face or throat.
  • Diabetic ketoacidosis (DKA): drowsiness, thirst, flushed skin, rapid breathing, or a fruity smell on your breath.
  • Lumps, skin thickening, or depressions at injection sites (lipohypertrophy or lipoatrophy).

Warnings and Precautions

There are specific warnings and precautions to be aware of when using Humulin N cartridges.

Regular monitoring and close communication with your doctor are crucial to safe and effective use.

  • Hypoglycemia is the most common side effect; monitor blood sugar levels regularly.
  • Do not use if the insulin appears lumpy, discolored, or has particles.
  • Avoid mixing Humulin N with other insulins unless instructed by your doctor.
  • Insulin type, strength, or manufacturer changes should only occur under medical supervision.
  • Follow your doctor’s individualized insulin schedule strictly.
  • Test your blood and urine regularly to ensure proper diabetes control.
  • Illness, nausea, or vomiting may require adjustments to your insulin dosage.
  • Always keep an extra supply of insulin on hand.
  • Wear a diabetic identification for emergencies.
  • Avoid driving or operating machinery if you have frequent low blood sugar episodes or reduced awareness of symptoms.
  • Consult your doctor if you miss a dose or meal or travel across multiple time zones.
  • Notify your doctor if you notice anything unusual about your condition or insulin use.

Drug Interactions With Other Medications

Humulin N cartridges can interact with various medications, affecting how well they control your blood sugar. Some drugs can increase insulin requirements, while others may decrease them.

To avoid complications, always inform your doctor about all your medications, including over-the-counter drugs and supplements.

  • Oral contraceptives (e.g., birth control pills, patches)
  • Thiazides (for high blood pressure or fluid retention)
  • Corticosteroids
  • Sympathomimetics (e.g., salbutamol, pseudoephedrine)
  • Danazol
  • Thyroid replacement therapy
  • Diphenylhydantoin (for epilepsy)
  • Oral diabetes medications
  • Salicylates (e.g., Aspirin)
  • Sulfa antibiotics
  • Monoamine oxidase inhibitors (antidepressants)
  • Beta-blockers
  • Alcohol
  • ACE inhibitors and angiotensin II receptor blockers
  • Anabolic steroids
  • Thiazolidinediones (e.g., rosiglitazone, pioglitazone) may cause heart failure or swelling of the lower extremities.
  • Underlying endocrine disorders like acromegaly, Cushing’s syndrome, hyperthyroidism, or pheochromocytoma can alter insulin sensitivity and complicate diabetes management.

Alternative Medications

Some good alternatives to Humulin N cartridges are Basaglar and Lantus cartridges, which provide long-acting insulin for steady glucose control. At the same time, Apidra and Fiasp cartridges offer faster-acting insulin for mealtime coverage.

Buy Affordable Medication from Buy Canadian Insulin

You can find Humulin N Cartridges at Buy Canadian Insulin at unbeatable prices.

Get Humulin N Cartridge at a lower price with Buy Canadian Insulin, providing U.S. buyers an affordable alternative from Canadian pharmacies.

Our Humulin N Cartridges start at just $80 for five cartridges, significantly lower than the average price of $180 in the USA.

We offer various package forms and strengths to suit your needs, including ten cartridges for $158, 15 cartridges for $234, and 25 cartridges for $375.

Enjoy fast shipping, excellent customer support, and discreet packaging when you choose Buy Canadian insulin for all your insulin needs.

How to Order Humulin N Cartridges Online?

Ordering Humulin N Cartridges from Buy Canadian Insulin is simple. Just follow these three easy steps:

  1. Use the search bar at the top of the website to find Humulin N Cartridges. Once you find the correct product and dosage, click the “Buy” button to add it to your cart.
  2. Enter your contact details, payment information, and shipping address to proceed to checkout. If you’ve created an account, simply login to speed up the process. Once your payment is confirmed, you’ll receive an order and payment confirmation email.
  3. For prescription medications like Humulin N Cartridges, upload a scanned copy of your prescription on the website or fax it to us at 1-888-234-1275. If no prescription is required, your order will be processed immediately.

Use the coupon code ‘FIRST10’ to claim your 10% discount on your first medication purchase!

Have a prescription?

Order Humulin N Cartridges online today and enjoy a host of benefits, including:

  • Cost Savings: Buy Humulin N Cartridges at significantly lower prices than in the US prices
  • Bulk Order Discounts: Save more on bulk orders of Humulin N Cartridges (up to 90-day supply)
  • Reliable Express Shipping: Fast and discreet delivery shipped right to your doorstep
  • Exceptional Customer Service: Have a question? We’re delighted to help via live chat, email, or phone
  • Easy & Secure Ordering: Seamless online or phone ordering at 1-888-525-1815
  • SAVE 10% on first order with coupon code: FIRST10

Frequently Asked Questions

Humulin N cartridges are pre-filled insulin cartridges containing NPH insulin (Neutral Protamine Hagedorn). They help control blood sugar levels in people with diabetes by providing a long-acting form of insulin.
Humulin N cartridges are designed for Lilly injector systems (reusable pens). They are not compatible with other insulin types for mixing in the cartridge.

Humulin N cartridges are suitable for up to 21 days after first use if stored below 30°C. Dispose of the cartridge after 21 days, even if it contains insulin.
Humulin N typically starts working 2 to 4 hours after injection. Its peak effect occurs 4 to 12 hours after injection, and its effects last for 12 to 18 hours.
To use a Humulin N cartridge, insert it into a compatible reusable insulin pen and attach a new needle. Prime the pen by dialing to 2 units and pressing the button to ensure insulin flows. Set the prescribed dose by turning the dial to the correct number of units, then clean the injection site and inject the insulin. After use, remove and dispose of the needle safely.
Yes, Humulin N insulin should be refrigerated or stored at room temperature up to 86°F (30°C) for up to 31 days.
People allergic to insulin or its ingredients should not use Humulin N. Patients with hypoglycemia (low blood sugar) or diabetic ketoacidosis (a severe diabetes complication) should also avoid it.
Humulin N typically lasts in the body for 12 to 18 hours after injection.
The best time to take Humulin N insulin is at about the same time(s) each day.
Humulin N should be injected at about the same time(s) each day, once or twice, as directed by your doctor.

Disclaimer

Buy Canadian Insulin shares medical information to support your understanding of medications and related health conditions. This content is intended for educational purposes only and should not be considered a substitute for professional medical advice. Always consult with your doctor or pharmacist before beginning or adjusting any prescription. Our trusted pharmacy partners adhere to the strict safety standards established by their respective health authorities to ensure you receive safe medications.

Price Match Guarantee

Price Match Guarantee

We’re dedicated to offering you the best value on every medication. If you discover a lower price on the same product at another verified Canadian online pharmacy, we’ll match it—so you can shop with confidence knowing you’re always getting a fair deal.

Eligibility Criteria

  • The pharmacy must be a licensed Canadian online provider with a verifiable address.
  • The competitor’s price must be active and current (not from past or upcoming promotions).
  • The product must match exactly in strength, pack size, quantity, manufacturer, and country of origin.
  • Requests must be made before completing your order—we cannot adjust prices after purchase.
  • Price matching does not apply to used or expired products.
  • Requests can be submitted via live chat or phone before checkout.

Note: Price matching does not currently apply to Mounjaro®, Ozempic®, or Saxenda®. This policy may be revised in the future.

Kenneth Fill, PharmD, MBA

Kenneth Fill, PharmD, MBA, is a clinical pharmacist specialist and medical writer with a strong background in ambulatory care, pharmacogenomics, and medical content development. Based in the state of Michigan, he provides expert guidance on chronic disease state management. Kenneth completed his PharmD and MBA at the University of Toledo and pursued post-graduate residency training in ambulatory care and community-based pharmacy. His diverse background also includes academic detailing, clinical education, and interdisciplinary collaboration to enhance patient outcomes.

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