These injections typically contain hydroxocobalamin or cyanocobalamin, with hydroxocobalamin being the preferred formulation in the UK as it is retained in the body for longer periods
Rahman I, Biswas SK, Jimenez LA, Torres M, Forman HJ (2005) Glutathione, stress responses, and redox signaling in lung inflammation
A low acid content can also cause poor vitamin absorption
PMID: 26385228.)
Use caution if you have cancer history, autoimmune disease, bleeding disorders, copper metabolism disorders (such as Wilsons disease), or if you take anticoagulants, immunosuppressants, or hormone-active therapies
Therapeutic response to cyanocobalamin may decrease due to elderly age, infection, renal insufficiency, diabetes mellitus, marrow suppressants use (e.g