how fast do b12 injections work

how fast do b12 injections work Vitamin Injections: What You Need To Know B12 Injections: Who Should Get

Name: how fast do b12 injections work Vitamin Injections: What You Need To Know B12 Injections: Who Should Get
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Long-Term Use of Certain Medications: Some common drugs interfere with B12 absorption: Metformin: A widely used diabetes drug

This timeline matches B12 pharmacokinetics: intramuscular methylcobalamin reaches peak serum concentration at 8-12 hours, but tissue saturation (particularly in the liver and nervous system) occurs over 48-72 hours as the vitamin is transported into cells and converted to active coenzyme forms (Andrs et al., 2018)