can you get too much vitamin b12 injection B12: Overdose and Side Effects Vitamin B12: Overdose and Side

Elderly people may also be deficient, as the ability to absorb vitamin B12 decreases with age

Lactated Ringers injection and 5% Dextrose injection (D5W) have also been found to be compatible with hydroxocobalamin and may be used if 0.9% NaCl is not readily available

Positive pressure inside the vial from repeated needle insertions can force contaminants back through the needle on subsequent draws, so always equalize pressure by injecting an equivalent volume of air before drawing liquid

The tradeoff is the trip itself, though many patients combine a B12 shot with other errands or with a blood test or a physical

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