The first week, adults get 1000 mcg daily
An overview of Vitamin B12 Vitamin B12 (also called cobalamin) is a water-soluble vitamin
Conclusion: Optimizing Your Vitamin B12 Therapy Getting the most out of vitamin B12 therapy is key to good health
If you let it go for too long, it can cause problems in your nervous system such as: Vision problems Memory loss A pricking or numbing sensation Difficulty speaking or walking due to ataxia (loss of physical coordination) Damage to your extremities (hands, feet, arms, etc.), particularly your legs Other problems could include Infertility (this should go away with B12 treatment) Stomach cancer Bleeding and infections Damage your heart, brain, bones, and other organs in your body If you're pregnant and don't get enough vitamin B12, your baby is at risk of a serious birth defect called a neural tube defect
For pre-filled pens or auto-injectors, follow the manufacturer's instructions to prepare the device for injection