Vitamin B12 / Mecobalamin / Cynocobalamin / Methylcobalamin
Description
Vitamin B12, or methylcobalamin, is an essential water-soluble vitamin vital fo
r various bodily functions. Unlike other B vitamins, the body can store B12 for several years, mainly in the liver. A deficiency in B12 can cause significant health issues. The most well-known is megaloblastic anaemia, a condition in which red blood cells become abnormally large and cannot mature properly, thereby impairing their ability to carry oxygen. This can result in fatigue, weakness, and shortness of breath. Furthermore, B12 is vital for maintaining a healthy nervous system. A lack of it can cause neurological damage, leading to symptoms such as numbness, tingling in the hands and feet, difficulty with balance, and cognitive issues like memory loss. Since B12 is mainly found in animal products, individuals following vegan or vegetarian diets are at higher risk of deficiency and often need to supplement.
Uses
- Vitamin B12, or methylcobalamin, is used for the treatment and prevention of Vitamin B12 deficiency anaemia.
- For preventing Vitamin B12 deficiency during pregnancy, breastfeeding, after surgery or in conditions of nutritional malabsorption.
- It is also used in the treatment of a condition of nerve damage also known as diabetic neuropathy.
Precautions and Warnings
Other General Warnings
- You have any existing medical condition and you are on other medications, supplements or following any complementary or integrative health approaches.
- You should not take this vitamin if you are allergic to it.
- You have any planned surgery or operation. You may be asked to stop taking these products at least 2-3 weeks ahead of the procedure.
- Dietary supplements containing vitamin B12 are intended to supplement the diets of some people and should not be a substitute for a well-balanced, varied diet and a healthy lifestyle.
Mode of Action
How Does It Work?
- Methylcobalamin is a form of Vitamin B12 also known as mecobalamain.
- It is essential for the functioning of the brain and nerves, for the production of red blood cells and DNA synthesis.
- It also plays a major role in protein and fat metabolism, fertility and functioning of various hormones.
- Deficiency of vitamin B12 can lead to anaemia and neurological changes.
- Methylcobalamin is widely prescribed along with other medicines for the treatment and prevention of diabetic neuropathy. It supports nerve regeneration and has neuroprotective properties.
Content Details

Dr. Arpit Verma
MBBS, MD, CCEBDM Diabetology

Dr. Ritu Budania
MBBS, MD (Pharmacology)
Frequently Asked Questions (FAQs)
Q: What are the food rich in methylcobalamin?
Q: Does methylcobalamin interact with other medicines?
- Medicines treat indigestion like antacids, medicines used to treat bacterial infections like Chloramphenicol and medicines used to treat bone problems like bisphosphonates should be taken with a minimum gap of two hours....
- Consult your doctor if you are taking medicines like Phenytoin (used to treat epilepsy), Methotrexate (used to treat cancer), Sulfasalazine (used to treat ulcers), water pill, metformin, Omeprazole and Cimetidine....
Q: What happens due to vitamin B12 deficiency?
Q: What is Vitamin B12 / Mecobalamin / Cynocobalamin / Methylcobalamin and why is it important?
Q: What are the different forms of Vitamin B12 and how are they different?
Q: How do I know if I'm deficient in Vitamin B12?
Q: Can Vitamin B12 / Mecobalamin / Cynocobalamin / Methylcobalamin be taken with other medications?
Q: Are there any side effects of taking Vitamin B12?
Q: Is Vitamin B12 safe during pregnancy or while breastfeeding?
Q: Who is at risk for a deficiency?
Q: How long do I need to take Vitamin B12 supplements?
Q: How long does it take to see the benefits of taking Vitamin B12?
References
Recent articles
Medicines containing Vitamin B12 / Mecobalamin / Cynocobalamin / Methylcobalamin
Top-Tests we cover:
Top-Selling Healthcare Products:
Top-Selling Medicines:
Top-Searched Medicines:
Top Searched Vaccines: