Have a prescription? Purchase Humulin N Vials from Canada and experience several benefits, including:

  • Significant Cost Savings:  Buy Humulin N Vials at lower prices compared to the US.
  • Bulk Discounts: Enjoy additional savings with bulk orders of Humulin N Vials.
  • Dependable Express Delivery: Fast and efficient shipping.
  • Secure Ordering Process: Order online or by phone at 1-888-513-2294
  • SAVE 10% on first order with coupon code: FIRST10
Buy Humulin N Vial from Canada
Buy Humulin N Vial

Starting from $59

Order up to a 3-month supply

Humulin N Vial
Insulin Isophane (Nph)
Select product strength & quantity:

Prescription Required.

Product of Canada.

Shipped from Canada.

Prescription Required.Product of Canada.Shipped from Canada.

What is Humulin N Vials?

Humulin N vials contain insulin isophane, which is a type of human biosynthetic insulin. This insulin is designed to mimic the insulin produced naturally by the pancreas in your body. 

It is classified as intermediate-acting insulin, meaning it works more slowly than regular insulin but has a longer duration of action, typically lasting between 16 to 18 hours. 

Humulin N is used for treating diabetes mellitus, a condition where blood sugar levels are too high. It helps lower blood sugar levels by promoting the uptake of sugar from the blood into tissues like the liver, muscles, and fat. 

This medication is administered through subcutaneous (under the skin) injections and should only be used as prescribed by your doctor. It should not be used if you are allergic to it or its ingredients, during episodes of low blood sugar (hypoglycemia), or for treating diabetic coma.

How Does Humulin N Vials Work?

Humulin N vials work by supplementing or replacing the insulin your body normally produces. This insulin helps regulate your blood sugar levels by assisting your muscle and fat cells in absorbing sugar from your bloodstream. 

By doing this, Humulin N helps lower high blood sugar levels in people with diabetes. It’s important to use Humulin N as directed by your doctor to maintain stable blood sugar levels and manage your diabetes effectively.

Dosage Information and Usage

Dosage Form and Strengths of Humulin N Vials

Humulin N (NPH) is available as a sterile suspension containing insulin isophane, human biosynthetic (rDNA origin) for subcutaneous injection.

It comes in two sizes of vials:

  • Vials, 3 mL
  • Vials, 10 mL


To ensure the safe and effective use of Humulin N vials, follow these steps:

  • Preparation:
    • Wash your hands thoroughly before handling insulin.
    • Examine the vial of Humulin N to ensure it is uniformly cloudy or milky after shaking. If not, repeat the mixing process until evenly mixed. Do not use it if particles stick to the vial or if it is cracked.
    • If using a new vial, wipe the rubber top with an alcohol swab.
  • Drawing the Dose:
    • Use a U-100 insulin syringe marked for 100 units/mL.
    • Draw air into the syringe equal to your prescribed dose.
    • Insert the needle through the rubber top of the insulin vial and inject the air into it.
    • Turn the vial and syringe upside down, ensuring the needle tip is in the insulin.
    • Withdraw the correct dose of insulin into the syringe.
    • Check for air bubbles and remove them if present.
  • Injecting the Dose:
    • Cleanse the injection site as instructed by your healthcare provider, rotating injection sites to avoid tissue damage.
    • Insert the needle under the skin and inject the insulin. Do not inject directly into a vein.
    • Push the plunger in and withdraw the needle.
    • Apply gentle pressure over the injection site for a few seconds. Do not rub the area.

Storage Information

Store Humulin N vials in the refrigerator but do not freeze. Once opened, it can be stored at room temperature (below 30°C) for up to 28 days. Dispose of used syringes and needles in a puncture-resistant container according to local regulations. Do not reuse syringes or needles.

Side Effects of Humulin N Vials

Common Side Effects

  • Low blood sugar (hypoglycemia)
  • Allergic reactions, including reactions at the injection site
  • Skin thickening or pits at the injection site (lipodystrophy)
  • Itching
  • Rash
  • Weight gain
  • Swelling of hands and feet

Serious but Rare Side Effects of Humulin N Vials

  • Serious allergic reaction (anaphylaxis) affecting the whole body
  • Low potassium in the blood (hypokalemia)
  • Heart failure, particularly when used with certain diabetes medications like thiazolidinediones (TZDs)

Warnings and Precautions

  • Hypoglycemia (low blood sugar) is the most common side effect of insulin products. Regular glucose monitoring is essential for all diabetes patients using insulin to prevent serious complications like loss of consciousness or coma.
  • Some patients may experience less noticeable early warning signs of hypoglycemia when switching to Humulin from animal-source insulin.
  • Changes in insulin regimen should be done cautiously and under medical supervision.
  • Fast-acting insulins should be used in combination with longer-acting insulin or insulin pumps to maintain stable blood sugar levels.
  • Humulin N should not be mixed with any other insulin unless instructed by a doctor.
  • Do not use Humulin N if you notice lumps or if the insulin remains clear after shaking.
  • Each diabetes case is unique. Follow your doctor’s instructions exactly on insulin type, dosage, timing, and injection frequency.
  • Regularly monitor your blood or urine sugar levels as instructed by your doctor to ensure proper diabetes control.
  • If you feel unwell, particularly with symptoms such as nausea and vomiting, inform your doctor promptly as your insulin requirements could alter.
  • Always have spare insulin, needles, and syringes available, and wear diabetic identification in case of emergencies when you’re away from home.
  • Never switch insulin types without your doctor’s advice, as it can affect blood sugar control.
  • Some patients may require dosage adjustments when switching from animal-source insulin to Humulin N, which may be done gradually.
  • Take precautions to avoid hypoglycemia while driving or operating machinery, especially if you have reduced awareness of its symptoms.
  • High blood sugar (hyperglycemia) can affect focus and response speed. Be careful when driving or using machinery.
  • When traveling across more than 2 time zones, seek advice from your doctor on adjusting your insulin schedule.

Overdosage of Humulin N Vials

Overdosing on insulin can lead to hypoglycemia, also known as insulin reaction, where blood sugar levels drop too low. 

This can happen due to taking too much insulin, skipping meals, strenuous activity before eating, illness like diarrhea or vomiting, or changes in insulin needs. 

If a meal cannot be eaten on time, consuming the prescribed amount of carbohydrates (like orange juice, syrup, candy, bread, or milk) without adjusting insulin dosage can help prevent hypoglycemia. 

If nausea or vomiting prevents a meal, check blood sugar levels and contact your doctor. 

Symptoms of hypoglycemia include 

  • sudden fatigue, 
  • nervousness, 
  • rapid heartbeat,
  • nausea,
  • sweating

Those with severe symptoms such as confusion or unconsciousness may need glucose orally or intravenously. Remember to inform your doctor after a hypoglycemic episode to make any needed treatment adjustments.

Drug Interactions With Other Medications

  • Inform your doctor about all medications you are taking, including prescribed and over-the-counter medicines.
  • Certain medications can affect insulin requirements. Drugs with hyperglycemic effects (increasing blood sugar) like oral contraceptives, thiazides (for high blood pressure), corticosteroids, and sympathomimetics (e.g., salbutamol) may increase insulin needs.
  • Insulin requirements may also change with medications like danazol, diphenylhydantoin (for epilepsy), and thyroid replacement therapy.
  • Contrarily, insulin requirements may decrease with oral diabetes medications, salicylates (like Aspirin), sulfa antibiotics, certain antidepressants, beta-blockers, alcohol, ACE inhibitors, angiotensin II receptor blockers, and anabolic steroids.
  • Diuretics can either increase, decrease, or have no effect on insulin requirements.
  • Thiazolidinediones (e.g., rosiglitazone, pioglitazone), used alone or with other antidiabetic drugs (including insulin), may lead to heart failure or swelling in legs. Contact your doctor if you experience symptoms like shortness of breath, fatigue, or swelling while using these medications.
  • Conditions such as acromegaly, Cushing’s syndrome, and hyperthyroidism can also affect insulin requirements and should be discussed with your doctor.

Cost & Discounts

Your health matters, and getting your medicine shouldn’t be costly. In the United States, buying Humulin N Vials can be costly with an average retail price of $123.95. Pharma Giant offers a more affordable option, providing Humulin N Vials at a significantly lower price.

Explore our options for Humulin N Vials:

QuantityPrice (USD)Percentage Discount
1 vial$59.00
2 vials$112.005.9%
3 vials$150.0015.3%
4 vials$192.0018.6%
5 vials$230.0022%

Don’t let costs affect your well-being. Choose Pharma Giant and take care of your health without spending too much!

Special Discount Code and Offer

Save significantly on your medication expenses with Pharma Giant’s exclusive discount offer.

For a limited time, use the promo code FIRST10 at checkout to receive a 10% discount on your Humulin N Vials purchase. This special offer ensures that you can access essential healthcare products without compromising on quality or affordability.

Remember, this discount code is valid for one-time use per customer, so be sure to make the most of it. Don’t let this opportunity pass you by!

Enjoy great value and ensure your healthcare essentials are taken care of with Pharma Giant.

Ensuring Quality and Timely Delivery

At Pharma Giant, our commitment is to provide top-quality medication with quick and reliable delivery to your door. With our express shipping service, you can expect your order to arrive securely within 3-5 business days across the US. We use protective containers to ensure that your medication remains safe and intact during transit.


No, Humulin N is not fast-acting. It is an intermediate-acting insulin. It starts working in your body within 2 to 4 hours after injection and continues to lower blood sugar levels for about 12 to 18 hours. If you need something faster, Humulin R is a short-acting insulin that starts working in about 30 minutes and lasts for about 8 hours.

Humulin N lasts for approximately 12 to 18 hours after injection. This duration can vary depending on individual factors and the specific treatment plan prescribed by your doctor.

Humulin N vials must be disposed of after 31 days, even if there’s insulin left. This is crucial for the medication’s effectiveness and safety.

A Humulin N vial, whether it’s a 3 mL or 10 mL multiple-dose vial, contains insulin at a concentration of 100 units/mL. 

Yes, you can take Humulin N in the morning. It’s usually given as a subcutaneous injection once or twice daily. Your doctor or pharmacist will show you how to inject it and suggest the best times for your treatment. Follow these instructions regularly for better blood sugar control.

You can purchase Humulin N vials over the counter without needing a prescription. If you prefer, you can also get Humulin N with a prescription from your doctor.

Insulin vials can be kept unrefrigerated (at room temperature) after first use for up to 4 weeks. However, specific insulin preparations may have shorter recommended room temperature storage durations, typically ranging from 10 to 14 days.

Yes, you can take Humulin N twice a day. Your doctor or pharmacist will provide instructions on how to properly inject Humulin N, and it should be taken around the same time(s) each day for consistent blood sugar control.

Taking too much Humulin can lead to an overdose, causing severe hypoglycemia (low blood sugar). This can result in symptoms such as disorientation, and seizures, and in extreme cases, it can be life-threatening.

When taking Humulin N, it’s important to avoid alcohol on an empty stomach or after exercise to reduce the risk of hypoglycemia (low blood sugar). Inform your doctor about all medications, including vitamins and herbs, as interactions can affect your insulin needs. Do not stop or change any medications without consulting your doctor.