can you take too much vitamin b12 injections How Is Much? High B12 Levels in Blood:

Nanjing, China 210061 September 2024 8H1AAM9-00 NDC 71288-300-01 Rx Only Cyanocobalamin Injection, USP 1,000 mcg per mL For Intramuscular or Subcutaneous Use Only 1 mL Multi-Dose Vial NDC 71288-300-02 Rx Only Cyanocobalamin Injection, USP 1,000 mcg per mL For Intramuscular or Subcutaneous Use Only 25 x 1 mL Multi-Dose Vials NDC 71288-301-10 Rx Only Cyanocobalamin Injection, USP 10,000 mcg per 10 mL (1,000 mcg per mL) For Intramuscular or Subcutaneous Use Only 10 mL Multi-Dose Vial NDC 71288-301-11 Rx Only Cyanocobalamin Injection, USP 10,000 mcg per 10 mL (1,000 mcg per mL) For Intramuscular or Subcutaneous Use Only 10 x 10 mL Multi-Dose Vials

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Pernicious anaemia , an autoimmune condition affecting approximately 2% of the UK population over 60 (and about 0.10.2% overall), destroys gastric parietal cells, eliminating intrinsic factor production and severely impairing B12 absorption

The best supplements contain Methylcobalamin

Obstetrics & Gynecology, 86(5), 696-701