To make sure it is safe for you, before using the medicine let your doctor also know if you have any medical conditions such as Leber's disease, liver disease, or kidney disorder.
Although cyanocobalamin is more readily absorbed, much of it is excreted through the urine before it can reach the cells Cyanocobalamin vs Hydroxocobalamin In comparison to hydroxocobalamin, cyanocobalamin has a significantly worse absorption rate and storability, which is why today mostly hydroxocobalamin is used in B12 injections
Established therapies such as platelet-rich plasma (PRP) have more extensive clinical evidence and regulatory approval for certain applications
How long will these reactions last
Interestingly, a recent study in Danish population showed that lower serum vitamin B12 concentrations were significantly associated higher BMI, but a genetic risk score related to vitamin B12 concentrations associated variants was not associated with BMI
Effective use depends on the solution used