Maternal plasma folate, vitamin B12 levels and multivitamin supplementation during pregnancy and risk of Autism Spectrum Disorder in the Boston Birth Cohort. The FASEB Journal 30 (2016): 151-6
Providers must document the patients details, medication name and dosage, route and site of administration, medical necessity, and their own signature to ensure claim approval
The absence of pharmacokinetic or pharmacodynamic interaction studies means healthcare providers must rely on theoretical considerations and the known pharmacology of each component when patients inquire about combination use

Poor health outcomes in infants with vitamin B 12 deficiency include anemia, abnormal skin and hair development, convulsions, weak muscle tone, failure to thrive, mental developmental delay, and potentially abnormal movements.[4-8] Well-recognized at risk groups are exclusively breastfed infants of mothers with B 12 deficiency due to minimal or no dietary intake of animal products[9-21] or pernicious anemia caused by a maternal malabsorption of B 12 .[18,22] Infant vitamin B 12 status can be improved through maternal B 12 supplementation during pregnancy and lactation.[23-26] Deficient mothers who miss the opportunity to supplement during pregnancy should still be encouraged to supplement during early lactation since infant vitamin B 12 status correlates with milk vitamin B 12 levels in breastfed infants up to 6 months of age.[27-30] Although there are cases reported of exclusively breastfed infants with vitamin B 12 deficiency having biochemical and clinical improvement through adequate maternal supplementation alone,[9] direct supplementation of the infant is recommended when such treatments are available.[31-33] Drug Levels Methylcobalamin is the major form of vitamin B 12 in milk

In some cases, if it is severe, it may even be life-threatening