doi: 10.1089/acm.2006.12.881
He saw an improvement upon starting the treatment
Most runners experience this variant more frequently than insertional problems
It is thus crucial to carefully evaluate a vendor before making a purchase
Interactions with Medications and Substances Alcohol and Caffeine: Regular consumption of alcohol may interfere with the body's ability to absorb vitamin B12, potentially diminishing the efficacy of the injection and leading to suboptimal relief from deficiency symptoms
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
