Usually, B12 is absorbed in the stomach with the help of an intrinsic factor protein
What organ is affected by B12 deficiency
Cyanocobalamin (Vitamin B12) Injection Cyanocobalamin (Vitamin B12) Injection (30 mL Vial) Cyanocobalamin (Vitamin B12) Injection (10 mL Vial) commercial product Product Overview Cyanocobalamin (vitamin B12) injection is a sterile, prescription-only parenteral formulation of a water-soluble cobalamin analogue that serves as the principal therapeutic option when oral absorption of the vitamin is impaired or when rapid repletion is clinically required
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