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After that it slowly disappeared because it became more and more difficult to obtain radioactive B12 suitable for human use, and at the same time less and less acceptable to use radioactive B12 in a diagnostic test
If you experience significant nausea during dose escalation, the standard approach is to hold at the current dose for an additional two to four weeks before attempting the next increase
Those who benefit from this method usually report more noticeable improvements than they receive from oral supplements
This extends the practical utility of each vial compared to single-dose formulations that must be discarded immediately after opening
Cyanocobalamin is generally considered safe in pregnancy
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