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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 (10-12)
chloramphenicol), and concurrent iron or folic acid deficiency (13, 16)
Blood reviews
First introduced in the 1950s, B12 injections have a long-standing record of safety and efficacy in treating deficiency and restoring metabolic health
If this occurs, consider changing placement on the body or use injections less often
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