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For many patients, their injections dont last long enough Some clinicians assume (incorrectly) that 1000 mcg of B12 should last patients at least 200 days, calculating from a 5 mcg daily requirement for the vitamin
Many people use daily maintenance alongside an IV or injection strategy so the gains are not limited to a single office or home visit
Increasing the dose beyond the effective range adds little benefit regardless of body weight
The role of injection dose in treating deficiency
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