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If a validated research protocol requires frozen solution storage, aliquots should be prepared under controlled conditions so each portion is thawed once rather than repeatedly freezing and thawing the same vial
Note: Our B12 is approved by Health Canada
Solutions: Rotate injection sites more frequently Use new needle every time Clean site thoroughly with alcohol Let alcohol dry before injecting If persistent, reduce dose or switch to oral Usually harmless: Minor reactions common Should resolve within hours to days Not dangerous unless signs of infection (warmth, spreading redness, fever) No results after 4 weeks Problem: Not seeing expected healing or improvements
No medications that affect b12 absorption
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