Vitamin B12 shots are usually safe, but knowing about possible side effects and problems is key for good care
Food and Drug Administration) Dietary deficiency of vitamin B 12 occurring in strict vegetarians and in their breastfed infants (isolated vitamin B 12 deficiency is very rare) Malabsorption of vitamin B 12 resulting from damage to the stomach, where intrinsic factor is secreted, or damage to the ileum, where intrinsic factor facilitates vitamin B 12 absorption
Speed depends on your metabolism, diet, and the severity of your deficiency
It is not a replacement for these medications but rather a different approach targeting a distinct metabolic pathway
This way, I am clean and my muscles are relaxed and warm, which means the the injection is less painful or totally pain-free
solubility, pH, and ionic strength should be validated per assay