Humulin R Cartridge 100u/mL Suspension
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Humulin R 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 R Cartridges?

Humulin R cartridges are pre-filled with short-acting insulin and are used to help manage blood sugar levels in people with diabetes.

Humulin R quickly lowers blood sugar levels by moving sugar from the bloodstream into tissues like muscles, liver, and fat, providing energy for your body.

These cartridges are used with a pen device for easy subcutaneous (under the skin) injections, making them ideal for people who need insulin therapy to manage diabetes.

How Do Humulin R Cartridges Work?

Humulin R lowers blood sugar approximately 30 minutes after injection and should be administered 30 minutes before meals.

Insulin helps move sugar from the blood into your muscles, liver, and fat, which is used for energy or stored for later use.

Depending on your doctor’s advice, the effects last 3 to 6 hours; hence, you may need 2 to 3 injections daily.

Dosage Information and Usage

Dosage Form and Strengths of Humulin R Cartridges

Humulin R cartridges are available in 3 mL and contain U-100 insulin, which is suitable for use with Lilly reusable pens.

The insulin is a clear, sterile solution produced using recombinant DNA technology and contains insulin human (regular insulin).

This format is designed for convenience and precision when administering your prescribed dose.

How to Use Humulin R Cartridges?

Load the cartridge into a compatible reusable pen per the manufacturer’s instructions for using Humulin R cartridges.

Administer the dose under the skin as your doctor instructs, rotating injection sites to prevent skin issues. Proper technique is crucial for effective diabetes management and preventing complications.

Side Effects

Humulin R can help effectively manage blood sugar levels, but like any medication, it may cause side effects. Common side effects include mild reactions at the injection site and low blood sugar (hypoglycemia). In contrast, severe side effects, though rare, may consist of serious allergic reactions and changes in the skin at injection sites.

Common Side Effects

  • Low blood sugar (hypoglycemia):
  • Sweating
  • Shakiness
  • Dizziness
  • Hunger
  • Confusion or irritability
  • Injection site reactions:
  • Redness
  • Swelling
  • Itching
  • Weight gain
  • Skin changes at injection sites:
  • Lipohypertrophy: Thickened or enlarged tissue
  • Lipoatrophy: Dimpled or depressed skin

Severe Side Effects

  • Severe low blood sugar (hypoglycemia):
    • Blurred vision
    • Slurred speech
    • Loss of consciousness
    • Seizures
  • Serious allergic reactions:
  • Localized reactions: Rash, redness, or swelling
  • Generalized reactions: Difficulty breathing, wheezing, rapid heartbeat, or full-body rash
  • Diabetic ketoacidosis (DKA):
    • Extreme thirst
    • Nausea or vomiting
    • Fruity-smelling breath
    • Rapid breathing
  • Skin lumps at injection sites (localized cutaneous amyloidosis)

Warnings and Precautions

Humulin R cartridges are reliable for managing diabetes, but come with essential precautions.

Proper use and vigilance ensure better blood sugar control and prevent severe health issues.

  • Risk of hypoglycemia: Low blood sugar is insulin’s most common side effect and can cause symptoms like sweating, shakiness, and confusion. Regular glucose monitoring helps prevent severe episodes.
  • Changes in insulin regimen: Altering your insulin type, source, or dosage without medical advice can disrupt blood sugar control.
  • Mixing insulins: Humulin R should only be mixed with other insulins if directed by a doctor, as improper mixing can reduce insulin effectiveness.
  • Appearance of the insulin: Use the Humulin R only if the insulin is clear and free of particles. Do not use cloudy or discolored insulin, as it may be ineffective.
  • Illness and dosage adjustments: Illnesses like fever or vomiting can change your insulin needs. Monitor blood sugar closely and consult your doctor for adjustments if needed.
  • Travel considerations: Adjust your insulin schedule when traveling across time zones to maintain stable blood sugar levels.
  • Hypoglycemia during driving or machinery use: Low blood sugar can impair concentration and reaction times, making driving or using machinery dangerous. Ensure stable blood sugar levels before engaging in such activities.
  • Proper identification: Always wear diabetic identification to ensure emergency medical staff can provide appropriate treatment quickly.

Drug Interactions With Other Medications

Humulin R can interact with other medications, affecting how it works or changing your insulin needs.

Tell your doctor about all your medications, including those bought without a prescription.

  • Oral contraceptives (birth control pills, injections, patches)
  • Thiazides (used for high blood pressure or fluid retention)
  • Corticosteroids (for inflammation or allergies)
  • Sympathomimetics (salbutamol for asthma, pseudoephedrine for colds)
  • Danazol (affects ovulation)
  • Thyroid replacement therapy
  • Diphenylhydantoin (used to treat epilepsy)
  • Oral diabetes medications
  • Salicylates (aspirin)
  • Sulfa antibiotics
  • Certain antidepressants (monoamine oxidase inhibitors)
  • Beta-blockers (for heart conditions or high blood pressure)
  • ACE inhibitors and angiotensin II receptor blockers
  • Alcohol
  • Anabolic steroids
  • Diuretics
  • Thiazolidinediones (rosiglitazone, pioglitazone)

Alternative Medications

If you are considering alternatives to Humulin R, several insulin options are available, each with different action types and formulations.

Below is a list of some alternatives, including their cartridges and other forms:

Cost & Ordering Information

Buy Humulin R Cartridges Through Buy Canadian Insulin

Buy Canadian Insulin helps patients access prescription medication options through participating pharmacy partners.

Pricing may vary depending on product strength, quantity selected, supplier availability, and participating pharmacy partner pricing policies.

Some patients may find pricing through participating pharmacy partners that differs from certain U.S. retail pharmacy prices.

Available services may include:

  • Pricing options based on quantity selected
  • Prescription processing through participating pharmacy partners
  • Shipping options available across eligible U.S. delivery locations
  • Ordering support through phone, email, or live chat
  • Multiple quantity options depending on prescription authorization and supplier availability

A valid prescription is required for prescription medications. Prescription orders are subject to review and approval by a licensed healthcare professional and pharmacist before dispensing, where applicable.

Shipping timelines may vary depending on prescription review requirements, inventory availability, destination location, and carrier services.

Prescription Medication Discounts and Coupons

Eligible first-time customers may use coupon code FIRST10 during checkout for qualifying orders, subject to current promotional terms and conditions.

Have a Prescription?

Patients may explore available prescription options through participating pharmacy partners.

Available ordering features may include:

  • Pricing options based on quantity selected
  • Multiple quantity options depending on prescription details and supplier availability
  • Shipping options with tracking availability when provided by the carrier
  • Customer support assistance through phone, email, or live chat
  • Online and phone ordering availability
  • Licensed pharmacist consultations available for customers who have questions regarding their medication orders

A valid prescription is required before prescription medication can be dispensed.

Save 10% on your first qualifying order with coupon code FIRST10.

Refrigerated Shipping Information for Humulin R Cartridges

Humulin R cartridges require refrigerated storage before first use.

Store refrigerated between 2°C and 8°C (36°F to 46°F). Do not freeze. Do not use the product if it has been frozen.

Special packaging is used to help maintain recommended storage conditions during shipment.

Cold-Chain Shipping Notice

This product requires special packaging to maintain its integrity during the shipping process. DO NOT USE THIS MEDICATION if the attached temperature indicator shows that the medication was exposed to temperatures below 2°C or above 8°C, and contact the pharmacy immediately.

Always follow the storage instructions provided by the dispensing pharmacy and product manufacturer.

Contact Buy Canadian Insulin

For questions regarding prescription processing, product availability, shipping timelines, pharmacist consultations, or account support, contact Buy Canadian Insulin customer support:

Phone: 1-888-525-1815

Fax: 1-888-234-1275

Email: info@buycanadianinsulin.com

Customer Support Hours

Monday-Friday: 7am – 10pm CST

Saturday & Sunday: 9am – 5pm CST

Business Address

Buy Canadian Insulin

1026 Manitoba Avenue, Suite 1001

Selkirk, MB R1A 4M2

Canada

About Buy Canadian Insulin Services

Buy Canadian Insulin works with participating pharmacy partners to help patients access prescription medications and related healthcare products.

Product availability, pricing, and shipping timelines may vary depending on supplier inventory, participating pharmacy partner availability, and destination location.

Some prescription orders may be fulfilled through licensed pharmacy partners located in Canada or other international fulfillment locations depending on product availability.

A valid prescription is required for prescription medications.

Licensed pharmacist consultations are available for customers who have questions about their medication orders.

Orders are packaged according to pharmacy handling and shipping procedures.

How to Order Humulin R Cartridges Online?

  1. Search for Humulin R cartridges using our website’s search field. Once you find the correct product and dosage, click the ‘Buy’ button to add it to your cart.
  2. Proceed to the secure checkout page, where you will enter your contact details, payment information, and shipping address. After completing your purchase, you will receive a confirmation email with your order and payment details.
  3. If you are ordering prescription medication, upload a scanned copy or photo of your prescription on the website using the RX document uploader tool or fax it to 1-888-234-1275.

Save 10% on your first order with coupon code FIRST10

Have a prescription?

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

  • Cost Savings: Buy Humulin R Cartridges at significantly lower prices than in the US prices
  • Bulk Order Discounts: Save more on bulk orders of Humulin R 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 R cartridges are pre-filled short-acting insulin to help control blood sugar in people with diabetes.

Refrigerate Humulin R when not in use. Once you start using a cartridge, keep it at room temperature and discard it after 28 days, even if it still contains insulin.

To use Humulin R cartridges, insert the cartridge into a compatible insulin pen, attach a new needle, and prime the pen to remove air bubbles. Adjust the dose as prescribed, then inject the insulin subcutaneously as directed by your doctor.

Humulin R starts working about 30 minutes after injection, as it is a short-acting insulin. Patients should take this insulin minutes before meals.

HumaPen is a compatible insulin pen with Humulin R cartridges.

Humulin R cartridges are good for 31 days after opening.

Humulin R can treat diabetic ketoacidosis (DKA), but it is given differently for this condition. Instead of injecting it under the skin, doctors administer insulin (the active ingredient) to humans through an intravenous (IV) infusion during DKA treatment.

No, Humulin R is not a mealtime insulin. While patients take it before a meal, it acts as a short-acting insulin rather than a rapid-acting (mealtime) insulin.

Yes, Humulin R and regular insulin are the same. Humulin R contains human insulin, which is also called “regular insulin,” “human insulin,” or “human regular insulin.” All these names refer to the same drug.

When using Humulin R, watch for hypoglycemia, especially if you skip or poorly balance meals. Regularly check your blood sugar. Use proper injection techniques and always use a new syringe and needle to avoid infections. Limit alcohol as it can affect blood sugar levels. Illness or stress may change your insulin needs; monitor your blood sugar more frequently. Do not mix Humulin R with other insulins unless directed. Ensure the insulin is clear before use and discard if cloudy. Store in the refrigerator and throw out opened cartridges after 31 days. If pregnant, consult your doctor before use.

Disclaimer

Buy Canadian Insulin provides educational information about medications and health conditions for informational purposes only. This content is not intended to replace professional medical advice, diagnosis, or treatment. Prescription medications require valid prescription review and processing through participating pharmacy partners. Product availability, pricing, and shipping timelines may vary. Consult your healthcare provider or pharmacist before starting, stopping, or changing any medication.

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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