why is pernicious anemia treated with injections of vitamin b12 Understanding and Deficiency | Muhammad Qasim posted on the topic State of art of oral

Vitamin B12, or cobalamin, is a water-soluble vitamin crucial for maintaining optimal health

Diphosphopyridine Nucleotide (oxidised) Molecular formula (free acid, reference): C 21 H 27 N 7 O 14 P 2 Molecular weight (free acid, reference): ~663.4 g/mol CAS (reference): 53-84-9 Form: Lyophilised powder Appearance: White to off-white solid Note: Exact values may vary by salt/hydration state (e.g., disodium salt, hydrates)

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However, it has been suggested that the risk of cognitive impairment and white matter damage in the elderly is elevated even when serum B12 is within 250350 pmol/L (50)