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Most commercial preparations contain 1000 mcg of vitamin B12 per mL, making it easy to figure out the dosage volume
Wipe the tops with the alcohol swabs and let dry
Most notice a clear energy boost by the next morning
When your body has enough B12, it can efficiently produce new, healthy cells to replace old ones
If the injection is needed (e.g., to replete B or B in a deficient mother), it can be used, but the infant should be observed for any unusual symptoms (though none would be expected from B vitamins, apart from perhaps looser stools if anything)
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