tired after b12 injection reddit 5 weeks starting injections : r/B12_Deficiency Vitamin B12 Injection | Causes

Genetic Factors: Rare genetic conditions such as hereditary transcobalamin deficiency or disorders affecting the production of intrinsic factor can also result in vitamin B12 deficiency

Dosing & Reconstitution Guide Educational guide for reconstitution and daily dosing Subcutaneous Protocol (4 mL = 12.5 mg/mL) Frequency: Inject once or twice daily subcutaneously

For cases requiring frequent injections, ensure the medical record provides robust justification for the frequency and appeals are filed with clinical evidence when necessary

In other words, B12 injections correct a problemthey dont override normal physiology

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