can i give myself vitamin b12 injections Instruction Guide for Intramuscular (IM) Self-injection of Methylcobalamin 1mg/5mg B12 Shots at Home: How,
Description
Age : Older adults may have reduced intrinsic factor production, essential for B12 absorption

Women taking oral contraceptives may have decreased serum B 12 levels in the absence of clinical deficiency (due to decreases in the B 12 carrier protein, haptocorrin)

that is, its not likely to increase energy levels in people with normal levels of B12

On rare occasions some patients do find that B12 improves their sleep if you fall into this category then using B12 at night may be better for you
If you are taking B12 supplements and suspect they may be contributing to anxiety, do not abruptly discontinue without medical advice, particularly if you have been diagnosed with deficiency

M., & Grinspoon, S
