B12 Injections Absorption Unlike the oral vitamin B12 tablet, a B12 injection does not pass through the digestive system
A sore, red tongue or mouth ulcers
People with pernicious anemia: Individuals with pernicious anemia may also be at risk for B12 deficiency
Typically, 1 ampoule 2-3 times weekly for therapeutic use, or once weekly/monthly for maintenance, administered intramuscularly or intravenously
Individual responses vary, but some individuals may experience improvements in energy levels and symptoms within a few days after starting B12 injections.
In fact, the Institute of Medicine recommends that adults aged 51 and over take vitamin B12 shots because they are more bioavailable than vitamin B12 found in oral supplements and foods