hospira bac water europe Bacteriostatic 30ML - Sterile Water for Injection contains no bacteriostat antimicrobial agent or added buffer and is intended only for single dose injection after admixture with an appropriate aolute or solution Hospira Bacteriostatic Water 30ml x

Others space it out to every few weeks or monthly

[56] [57] Low levels of serum vitamin B 12 may be caused by other factors than B 12 deficiency, such as folate deficiency, pregnancy, oral contraceptive use, haptocorrin deficiency, and myeloma

Claims that the combination is "proven" to outperform either compound are not supported by the published literature

Cyanocobalamin Drugs BNF

Recent research confirms that there is a high B12 deficiency in vegetarians and vegans because the study reported that: Vegans who dont take supplements develop B12 deficiency more than all other types of vegetarians

PMC Article PMC6073405