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Formulations of cyanocobalamin injection containing benzyl alcohol as a preservative should also be avoided in premature neonates and those with hypersensitivity due to its association with gasping syndrome
Vegans and vegetarians B12 occurs naturally only in animal products
Once ingested, cyanocobalamin must be converted by the body into active formsmethylcobalamin and adenosylcobalaminthrough enzymatic reactions in various cells throughout the body
CDC and FDA guidance say otherwise
Appa, Y., Yohn, J., Stern, R., & Mehta, R
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