is taking vitamin b12 nasally and by injection These highlights do not include all the information needed to use NASCOBAL® NASAL SPRAY safely effectively. See full prescribing information for NASCOBAL® NASAL SPRAY. NASCOBAL (cyanocobalamin nasal spray)Initial U.S. Approval: 1942 B12 as a Treatment Treatment:6 Months 1-Methyl-5-Aminoquinolinium
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