Diet and Lifestyle: In conjunction with injections, dietary adjustments or oral supplementation may be considered to maintain adequate vitamin B12 levels, especially in dietary-related deficiencies
Once opened, vials must be used within 28 days and discarded after that period, regardless of remaining volume
Some practitioners use the Z-track method (pulling tissue aside before injection) to prevent leakage
If you are arranging US delivery from Canada, plan ahead so your injection schedule, storage needs, and refill timing stay aligned

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What are the benefits of B12 injections over oral supplements