A regimen combining a loading dose and no loading dose, involving administration every three days for two weeks followed by weekly doses, appears to be the optimal approach for treating vitamin B12 deficiency in elderly patients.
Lifehacks for Pernicious Anemia: Talk with your doctor, of course, about what to do about pernicious anemia
B12 injections are generally considered safe, especially since vitamin B12 is water-soluble, meaning the body naturally expels excess amounts
Oral Vitamins Path to Bioavailability When you take an oral vitamin, it first makes its way to your stomach
However, the absence of known interactions may partly reflect the limited scope of formal studies on NAD+ therapy, so this lack of interactions should be interpreted with caution