Most people tolerate B12 injections very well, and side effects are usually mild and short-lived
Is Oral BPC-157 More Relevant for Gut Issues Than Injections
Vitamin B12 deficiency can lead to pernicious anemia, a form of anemia that can result in irreversible nerve damage known as pernicious neuropathy
2.5 Quality assessment and risk of bias In line with PRISMA guidelines, the assessment of methodological quality was conducted to evaluate the strength of evidence, recognising that methodological limitations may introduce bias
Poor technique, like vigorous shaking, using the wrong solvent, or ignoring sterility, can cause foaming (which risks oxidation), precipitation (insoluble aggregates), or rapid degradation from bacterial byproducts
Pharmacokinetics: Cyanocobalamin is administered intranasally, orally, and parenterally, while hydroxocobalamin is administered only parenterally. Once absorbed, vitamin B12 is highly bound to transcobalamin II, a specific B-globulin carrier protein and is distributed and stored primarily in the liver as coenzyme B12. The bone marrow also stores a significant amount of the absorbed vitamin B12. This vitamin crosses the placenta and is distributed into breast milk. Enterohepatic recirculation conserves systemic stores. The half-life is about 6 days (400 days in the liver). Elimination is primarily through the bile; however, excess cyanocobalamin is excreted unchanged in the urine