Those are covered at the end of this article
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Can I Get a B12 Injection at Hodgson Pharmacy
Pre-existing conditions such as liver disease, kidney problems, or known allergies can increase the risk of adverse reactions
Sterile water and normal saline can technically dissolve the powder, but the reconstituted solution must then be used within 24 hours, which is impractical for a weekly injection regimen
While additional studies are needed to determine whether elevated vitamin B 12 status may be related to cancer development, including evaluating whether it might be a potential marker of cancer, it is important for observational studies to adequately control for potential confounders, such as age, menopausal status, alcohol use, and intake of the B-vitamin folate