b12 injection dose mcg VITAMIN Vitamin B12 Injection Dosage |

For individuals requiring supplementation due to confirmed deficiency or malabsorption, therapeutic doses vary considerably depending on the underlying cause: Dietary deficiency : 50150 micrograms daily orally, or cyanocobalamin tablets as prescribed Pernicious anaemia : Initially hydroxocobalamin 1 mg intramuscularly three times weekly for two weeks, then maintenance injections every two to three months [3] Neurological involvement : More intensive regimens may be required, with hydroxocobalamin injections on alternate days until symptom improvement [3] NICE guidance emphasises that supplementation should be evidence-based rather than speculative

Efficacy of oral versus intramuscular vitamin B12 supplementation following RouxenY gastric bypass

This distinction is especially important for clients with MTHFR genetic variants who have difficulty converting synthetic forms of B12

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