doi:10.1016/j.bcp.2017.11.007 (PMID 29155147) Neelakantan H, Brightwell CR, Graber TG, et al
[3] Because different salt forms, supplier lots, and analytical specifications may exist, any COA interpretation should verify the compound name, salt form, CAS number, molecular formula, molecular weight, analytical identity method, assay or purity method, residual solvent information, water content if tested, storage recommendation, and lot-specific validity date against the actual batch documentation
As a result, you can get more B12 with injections than with oral supplementseven if you take higher oral doses
If the discomfort is bothersome, over-the-counter pain relievers such as acetaminophen or ibuprofen may helpprovided you do not have any contraindications to these medications
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