This measures the amount of B12 that is available for the cells to absorb and use
As in other developed economic areas, European pet food companies are not required to declare the analytical or additive value of vitamin B12 on product labels [16]
These include, extreme tiredness, a lack of energy, pins and needles, muscle weakness, disturbed vision, mouth ulcers, a sore and red tongue, and cognitive or psychological concerns such as depression, confusion, and difficulty with memory, understanding or judgement
Since this is a multi-dose vial with a preservative, it can be used for multiple doses in the same patient
If the underlying disease process has resolved and cobalamin body stores have been replenished, serum cobalamin concentration should be supranormal [higher than normal] at the time of reevaluation