These may include: Nausea and stomach upset Diarrhea Constipation Injection site redness or swelling Itching Headache Dizziness Blood clots Swelling In rare cases, some people may experience an allergic reaction to vitamin B12, which can cause symptoms such as hives, difficulty breathing, and swelling of the face, lips, tongue, or throat
Oral supplements have also been shown to be effective at treating vitamin B12 deficiency
Monitor for Reactions After the injection, monitor for any adverse reactions like: Pain, redness, or swelling at the injection site (mild discomfort is normal)
As noted, the present knowledge is limited, and these are considerations, not strong recommendations
We encourage anyone with questions about this formulation to reach out to us for further information