Key Takeaways Location and Method Dictate Your Results : The injection sitebe it your arm, thigh, or buttocksand the technique used directly influence your comfort and how effectively your body absorbs the vitamin B12
Specifically, this nutrient: Because it is involved in so many bodily functions that correlate to healthy energy levels, B12 is sometimes known as 'the energy vitamin.' When people don't get enough B12 through diet alone, they are likely to suffer from ailments such as megaloblastic anemia
The period for B12 vitamin effectiveness remains a common question, but nerve recovery needs ongoing treatment for multiple months
Drug/Laboratory Test Interactions Most antibiotics, methotrexate, and pyrimethamine invalidate folic acid and vitamin B12 diagnostic microbiological blood assays
Some people can experience problems related to a vitamin B12 deficiency, despite appearing to have normal levels of vitamin B12 in their blood