This complex process means that conditions affecting the stomach or intestines can significantly impair B12 absorption, including pernicious anaemia, atrophic gastritis, previous gastric surgery, coeliac disease, Crohn's disease, and long-term use of certain medications (such as metformin, proton pump inhibitors, and H2 antagonists)
E Walsh, Prestbury Having the B12 injetion has made such a positive difference to how I was feeling
Known Side Effects Reported side effects are generally mild and infrequent: Injection site reactions: temporary redness, mild swelling, or tenderness Nausea: occasionally reported, usually mild and transient Dizziness: rare, typically with first doses Fatigue: some users report temporary tiredness Headache: infrequent, usually resolves quickly These effects typically diminish with continued use and rarely require treatment discontinuation
This 10 mg multi-dose vial is formulated for accuracy and stability, supporting experimental protocols related to red blood cell development, energy-metabolism pathways, and nervous-system function
Journal Biological Macromolecules 308, 142173
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