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Most commercial preparations contain 1000 mcg of vitamin B12 per mL, making it easy to figure out the dosage volume
Practical steps to minimize air exposure include keeping the vial upright so the stopper stays above the liquid, using the smallest gauge needle that works for your injection (smaller punctures seal better), and not removing the stopper or cap unnecessarily
vitamin B12 deficiency anemia The main difference in the two conditions is that pernicious anemia is due to your body not being able to absorb B12, while other types of B12 anemia may be due to your not having enough of the vitamin in your diet
Making adjustments If side effects occur, work through potential causes systematically
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