Cyanocobalamin (Vitamin B12) Injection



Dosage & Concentration

  • Dosage: up to 1ml
  • Concentration: 2mg/ml


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Cyanocobalamin is a synthetic form of vitamin B12, a crucial nutrient for the body. Vitamin B12 plays a vital role in various physiological processes, including energy production, metabolism, blood cell formation, and nerve function. While most individuals obtain sufficient amounts of vitamin B12 through their diet, some individuals may require supplementation due to certain health conditions or lifestyle choices that can lead to vitamin B12 deficiency. Conditions such as intestinal or stomach problems, poor nutrition, HIV, pregnancy, old age, veganism and alcoholism can contribute to vitamin B12 deficiency.

What Is Cyanocobalamin Prescribed For?

Cyanocobalamin is primarily prescribed to treat vitamin B12 deficiency, which can occur due to a variety of conditions such as pernicious anemia, prolonged use of certain medications, surgery in the gastrointestinal tract or dietary deficiencies.

In mild cases, low levels of vitamin B12 can cause fatigue and anemia, while more serious deficiencies can lead to serious neurological and heart impairments. Symptoms of severe vitamin B12 deficiency can include visual disturbances, severe joint pain, paresthesia (tingling in the hands and feet), memory problems, depression, anxiety, poor muscle function, ataxia (impaired balance and coordination), changes in reflexes and even infertility. It’s crucial to identify and treat vitamin B12 deficiencies early to maintain overall health.

Other Benefits of Cyanocobalamin

Beyond preventing and treating deficiencies, cyanocobalamin has other health benefits. It is vital for the production of red blood cells and DNA and for maintaining the health of nerve cells. Cyanocobalamin can also aid energy production by converting carbohydrates into glucose, a process that is crucial for sustaining physical and mental functions.

Cyanocobalamin Dosage, Concentration, Route of Administration

Dosage: Seek advice from a licensed physician, medical director, or other healthcare provider

Concentration: 2mg/ml

Route of Administration: IM/Sub-Q

Precautions/Side Effects

Before taking, make sure to tell your healthcare provider about any allergies to this, cobalt, or any form of vitamin B12. This product may contain inactive ingredients, which can cause allergic reactions or other issues. Consult your physician if you have Leber’s optic neuropathy, polycythemia, gout, iron or folic acid deficiency anemia or hypokalemia. When taken in recommended doses, cyanocobalamin is safe to take during pregnancy. 

This product usually has no side effects. Contact your doctor or pharmacist if anything unusual occurs.

For those with serious anemia, this medication may rarely cause hypokalemia (low potassium). Tell your doctor right away if you experience any of the following: 

  • – Muscle cramps
  • – Weakness
  • – Irregular heartbeat

Seek immediate medical attention if you experience an allergic reaction. This may include:

  • – Rash
  • – Itching/swelling — especially of the face, tongue and throat
  • – Severe dizziness
  • – Trouble breathing


Store at controlled room temperature. Protect from light.


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