acetaminophen overdose napqi glutathione mechanism review Toxicity in Children: Diagnosis, Clinical Assessment, and Treatment of Acute Overingestion Xia & He Publishing
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In-competition vs out-of-competition testing Athletes can be tested at any time, not just during competitions

Older adults absorb it less efficiently

Rare hypersensitivity reactions to B12 preparations can occur, which might include systemic symptoms, though joint pain specifically is not typically reported

10.1152/ajprenal.00400.2009 155 MorevatiM.EgstrandS.NordholmA.MaceM
always assess B12 directly
