is b12 injection im or subq Common Mistakes in Injections to Avoid Best Vitamin B12 Injection Sites:

Subcutaneous vitamin B12 administration using a portable infusion pump in cobalamin-related remethylation disorders: a gentle and easy to use alternative to intramuscular injections

Depending on your circumstances, multiple injections may be necessary to achieve optimal B12 levels

These effects may include better moods, more energy, less fatigue, and a general sense of wellbeing

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Conversely, pernicious anemia resulting from vitamin B12 deficiency may cause infertility or poor pregnancy outcomes

Please report these side effects immediately to your providerespecially if it is your first time receiving B12 injections