While B12 injections are generally safe, some individuals may experience minor side effects, such as: Pain or swelling at the injection site Mild diarrhea Dizziness or headache Rare allergic reactions, including rash or difficulty breathing Severe side effects are uncommon
Conditions include alcoholic liver disease, viral hepatitis, cirrhosis, and primary or metastatic liver cancer Renal dysfunction : Impaired kidney function reduces B12 elimination, causing accumulation even with normal intake Haematological conditions : Myeloproliferative neoplasms, chronic myeloid leukaemia, polycythaemia vera, and hypereosinophilic syndrome increase transcobalamin production, elevating total serum B12 Laboratory interference : Macro-B12 (immunoglobulin-bound B12) and assay interference can cause spuriously elevated results without true excess In clinical practice, unexplained hypercobalaminaemia should prompt investigation for underlying disease, particularly in patients without obvious supplementation history
A- It can be used if recommended by a doctor
This mechanism underpins its fibroblast migration-promoting effects and helps explain its capacity to accelerate tissue repair at a cellular motility level independent of proliferation
Ankle injections can help with pain that just wont go away
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