Vitamin B12 Injection (Cyanocobalamin)

Name: Vitamin B12 Injection
Brand: Generic
SKU: 5586
Availability: InStock

Type

Product

Manufacturer

Country

Dosage

Qty-Price (USD)

There is no brand product of Vitamin B12 Injection.

Generic Equivalent of Vitamin B12 Injection

Type

Product

Manufacturer

Country

Dosage

Qty-Price (USD)

Type:

Product: Cyanocobalamin 10ml Vial (Sterimax)

Manufacturer: Generic

Country: Canada

Dosage: 1000 mcg/ml

Qty-Price (USD):

Type:

Product: Cyanocobalamin 30ml Vial (Sterimax)

Manufacturer: Generic

Country: Canada

Dosage: 1000 mcg/ml

Qty-Price (USD):

Type:

Product: Cyanocobalamin 5 x 1ml Ampoules

Manufacturer: Generic

Country: Turkey

Dosage: 1000 mcg/ml

Qty-Price (USD):

Vitamin B12 Injection online Canadian Pharmacy

Vitamin B12 Injection Information

medically reviewed by Carol Hou (BSc. Pharm) on July 3, 2025.

A licensed pharmacist (Licensed Community Pharmacies Directory | College of Pharmacists of British Columbia) with over 20 years of experience in medication management, specifically medication safety, she has reviewed the information for accuracy and completeness.

Cyanocobalamin at CanadaPharmacyOnline.com

Brand Vitamin B12 Injection is currently unavailable (at this pharmacy).

Generic cyanocobalamin is sourced from manufacturers that meet applicable regulatory standards. The specific manufacturer of your dispensed medication may vary.

Important Information about Generic Cyanocobalamin:

Generic cyanocobalamin contains the same active ingredient as the brand-name Vitamin B12 Injection and is required to meet the same safety, effectiveness, and quality standards. This means it is designed to work in the same way as Vitamin B12 Injection. Studies have demonstrated bioequivalence between generic and brand-name cyanocobalamin, meaning they have comparable absorption rates and overall effects. However, individual responses to any medication can vary. If you have any questions about using generic cyanocobalamin, talk to your doctor or pharmacist.

For more information about generic drug approval and bioequivalence, you can visit the FDA website: https://www.fda.gov/drugs/buying-using-medicine-safely/generic-drugs

Dosage:

Generic cyanocobalamin is available in different forms and strengths:
• Vials: 1000 mcg/ml in 10 ml and 30 ml vials
• Ampoules: 1000 mcg/ml in 1 ml ampoules

Your doctor will determine the appropriate dosage based on the individual needs and medical conditions.

Usage:

Vitamin B12 Injection (cyanocobalamin) is a prescription medication used to treat and prevent vitamin B12 deficiency. Vitamin B12 is essential for red blood cell formation, neurological function, and DNA synthesis. A deficiency can occur for several reasons, such as pernicious anemia (a condition where the body cannot absorb vitamin B12 from the diet), certain medical conditions (e.g., Crohn's disease, celiac disease), surgical removal of part of the stomach or intestine, or strict vegetarian/vegan diets if not adequately supplemented.

Mechanism of Action:
Vitamin B12 Injection (cyanocobalamin) is a synthetic form of vitamin B12 that increases B12 levels in the body. When administered, it is converted to its active coenzyme forms, methylcobalamin and 5-deoxyadenosylcobalamin. These active forms are crucial for several metabolic pathways in the body. Use Vitamin B12 Injection exactly as your doctor prescribes, following the instructions in the product monograph in Canada. Consult your doctor for personalized guidance and safe use.

The information below summarizes some, but not all, potential side effects, risks, and interactions. Before taking a Vitamin B12 Injection, it is essential to discuss all potential side effects, risks, and interactions with your doctor or pharmacist.

Side Effects:

The information below is a partial list of side effects; individual reactions can vary. Before starting Vitamin B12 Injection, it is crucial to discuss potential side effects and risks with your doctor or pharmacist.

Common side effects – The following are examples of some common side effects of a Vitamin B12 Injection; others are also possible. Contact your doctor promptly if any side effects persist, worsen, or concern you, or if you experience any other concerning symptoms.
• Headache
• Mild diarrhea
• Mild pain or redness at the injection site
• Nausea

Serious or rare side effects – Stop taking Vitamin B12 Injection and seek immediate medical attention right away if you experience any of the following:
• Allergic reactions, including angioedema, hives, and trouble breathing
• Signs of heart problems, including swelling, rapid weight gain, and shortness of breath
• Signs of hypokalemia, including muscle weakness, slow or irregular heartbeat

Contraindications:

This is not an exhaustive list of contraindications. Before starting Vitamin B12 injection, it is crucial to discuss all your medical conditions, past and present, and all medications you are taking with your doctor or pharmacist.

Vitamin B12 Injection should not be used if:
• Are allergic to cyanocobalamin or any of the inactive ingredients in Vitamin B12 Injection
• You have Leber’s disease

Tell your doctor about all of your medical conditions, past and present, before starting Vitamin B12 Injection. This is crucial because certain conditions can affect whether Vitamin B12 Injection is right for you. These conditions may include, but are not limited to:
• A family history of eye problems
• Any active infection
• Iron or folic acid deficiency
• Kidney disease
• Liver disease

Alcohol:
Avoid drinking large amounts of alcohol while getting Vitamin B12 treatment. Alcohol can interfere with the absorption of vitamin B12, reducing the effectiveness of the treatment.

Folic Acid Deficiency:
You will likely have concomitant folic acid deficiency if you have severe vitamin B12 deficiency. Vitamin B12 Injection alone will not resolve all symptoms if folic acid is also deficient.

Leber’s Disease:
Leber’s disease is an inherited form of vision loss. Cyanocobalamin can lead to optic nerve damage and possibly blindness in people with Leber’s disease.

Medical Tests:
Your doctor may order frequent medical tests to monitor your blood count, potassium levels, and vitamin B12 levels, assessing the effectiveness of the treatment.

Pernicious Anemia:
If treating pernicious anemia, you may have to use Vitamin B12 Injections for the rest of your life. Do not stop using the medicine unless your doctor tells you to. Untreated vitamin B12 deficiency can lead to anemia or irreversible nerve damage.

Drug Interactions:

Before taking a Vitamin B12 Injection, it is essential to discuss all potential risks and interactions with your doctor or pharmacist. For complete information about potential drug interactions, consult the Prescribing Information in Canada: https://pdf.hres.ca/dpd_pm/00026115.PDF and discuss any concerns with your healthcare provider.

Provide your doctor with a complete list of all your medications, including prescriptions, over-the-counter (OTC) drugs, vitamins, and herbal supplements. Vitamin B12 Injection can interact with other medicines but is not limited to chloramphenicol, cimetidine, neomycin, omeprazole, and ascorbic acid.

Pregnancy and Breastfeeding:

If you are pregnant or become pregnant, tell your doctor before using Vitamin B12 Injection. Vitamin B12 is essential for normal fetal development, and a deficiency should be corrected. Cyanocobalamin is generally considered safe in pregnancy. If you are breastfeeding or plan to breastfeed, inform your doctor. Cyanocobalamin is excreted in human breast milk in safe concentrations. This medicine is considered safe for breastfeeding mothers and nursing infants.

Frequently Asked Questions about Vitamin B12 Injection at Canada Pharmacy Online

Why is Vitamin B12 Injection more affordable in Canada than in the United States?

Prescription drug prices, including Vitamin B12 Injection, are generally lower in Canada than in the US due to a combination of factors, primarily government price regulations, differing market dynamics, and other economic considerations. In Canada, provincial and federal governments negotiate drug prices with pharmaceutical companies, which often results in lower costs than the US, where market forces play a more significant role. For more information, see the FAQs on Prescription Drug Importation from the Kaiser Family Foundation (KFF): https://www.kff.org/health-costs/issue-brief/faqs-on-prescription-drug-importation/

How much is the shipping?

Our shipping fee is a flat rate of $10.00 per order. Our pharmacy is dedicated to offering you the lowest prices on high-quality products.

How do I place an order with your pharmacy?

Ordering from us is very simple. You can purchase online or call Customer Service at 1866.920.3784. For additional information or to learn about the ordering process, visit our How to Order page.

Is there a limit on how many Vitamin B12 injections I am allowed to order at one time?

CanadaPharmacyOnline.com can only dispense a maximum of a three-month supply of Vitamin B12 Injection at one time, as per your doctor's prescription.

Can I buy an over-the-counter vitamin B12 injection from you?

No, Vitamin B12 Injection requires a valid prescription from your doctor. We do not sell this product without a valid prescription.

Do you ship to the United States?

Yes, we do. It usually takes 7 to 18 business days to receive your order from our pharmacy.

How often are Vitamin B12 injections given?

The frequency of injections depends on the severity of the deficiency and the underlying cause of the deficiency. Initially, your doctor may administer the injection frequently (e.g., daily or weekly), then transition to less frequent injections (e.g., monthly) for maintenance, especially when treating conditions like pernicious anemia.

Who administers the injection?

Vitamin B12 injections are typically administered by a healthcare professional (doctor, nurse) into a muscle (intramuscularly).

Can I give myself the injection?

In some cases, after proper training from your doctor, you may learn how to self-administer the injection.

Blog Posts:

VITAMIN B 12: The Vitamin You Can't Afford to Be Deficient In
The Best Iron Supplements Infographic

Latest News:

Vitamin B12 deficiency in pregnancy could pose a metabolic health risk, research suggests (study published on May 20, 2025)

Similar Drugs in the category of Vitamin Supplements:

Nutrazul Centrum FeraMAX Vitamin B6 Injection Replavite

The information on this page is sourced from independent third parties contracted by CanadaPharmacyOnline. While we cannot guarantee its medical accuracy, we strongly recommend consulting a healthcare professional for personalized advice regarding medications or medical conditions.

Reviews From Real Customers