is there a shortage of b12 injections Vitamin Deficiency B12 Injection Dosage and Frequency:

Most clients describe a mild pressure sensation that resolves immediately after the needle is withdrawn

Thank you for such thorough instructions for a time that can be so stressful

As your results compound, your provider may adjust your dose or timing based on your progress

So, how soon do you feel less tired after a B12 injection

This response to the intramuscular vitamin injection supports the notion that there is metabolic evidence of vitamin deficiency and it is common in the elderly, even in the presence of normal vitamin levels

No, you cannot overdose on B12 It is highly unlikely that someone could take too much B12, says Natalie Allen, RD, a clinical assistant professor of biomedical sciences at Missouri State University