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Heres a general guideline on how often B12 shots are administered: For Severe Deficiency : Initially, B12 shots may be given daily or weekly to rapidly boost levels in someone who has a significant deficiency
The studies were brief, with the first involving one of four ascending single doses over 28 days, and the second involving two or three weekly or biweekly doses over 49 days [2]
Cycle Length: 816 weeks
Lofgren S, Fernando MR, Xing KY, Wang Y, Kuszynski CA, Ho YS et al
Kamen DL, Pasko JA, et al
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