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PMC 6543499
Maintenance Phase: Once adequate B12 levels are achieved, the frequency of injections can be reduced
Individual results vary, and we encourage realistic expectations during your consultation
Certain populations, including the elderly, vegetarians, and those with gastrointestinal disorders, may be at a higher risk of deficiency due to inadequate dietary intake or absorption issues
Consider injection supplies, sharps disposal, lab follow-up, and the interval between refills
Most adults can safely get weekly injections indefinitely
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