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The units are the same IF the concentration is the same
This is the most popular option and works well with the peptide calculator for verification
The optimal dosage of vitamin B12 for nerve pain relief is a key consideration
doi: 10.1073/pnas.89.10.4678
Community sources report a 16-week subcutaneous ladder of 250 mcg daily for Weeks 1-4, 375 mcg daily for Weeks 5-8, and 500 mcg daily for Weeks 9-16, but this is reported research context, not a recommendation
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