The care team can review symptoms, outside labs, prior treatment plans, and whether a same-day B12 shot is appropriate before treatment is given
However, this does not mean everyone will feel more energetic after a B12 injection
When adverse effects occurred, they were typically mild and transient, with the most common being mild to moderate headaches (similar frequency to placebo groups), minor injection site reactions (redness, slight swelling), and gastrointestinal effects at higher oral doses (nausea, diarrhea)
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Hydroxocobalamin offers superior absorption, longer retention, and greater efficacy versus cyanocobalamin and methylcobalamin, making it the preferred choice for severe deficiency and for those needing frequent injections