how to give a b12 injection at home Ivy Grove Surgery : Self-administration of Safe B12 Injection Guide at
Description
In addition it can happen that we produce "Parietal cell Antibodies" and "Intrinsic Factor Antibodies" which totally wipes out any chance of absorbing the B12

Common side effects may include: Mild injection-site reactions (redness, soreness, itching) Upset stomach or nausea Headache Mild anxiety or restlessness Rarely, allergic reactions If you experience difficulty breathing, severe dizziness, or hives, seek medical attention immediately

PMID 24717514

[DOI] [PubMed] [Google Scholar] 27.Canto C, Menzies KJ, Auwerx J