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No syringe drawing
For in vivo or ex vivo studies (if employed in nonclinical contexts), consider potential biodistribution, clearance, and off-target interactions in experimental design
Symptoms of excessive intake are rare since your body will excrete any extra through your urine, adds Taylor
Question Oral or subcutaneous timing
Some individuals may experience mild injection-site reactions (e.g., redness, swelling) or occasional headaches
It takes weeks for B12 to build up in your body." The first time, or even the second time, a person receives B12 shots, you might not notice any difference
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