If you miss your scheduled injection day, administer the dose as soon as you remember, as long as your next scheduled dose is at least three days away
Severity of Deficiency : Severe deficiencies often require injections to restore B-12 levels quickly
L., Zaman, R., Rehman, N., & Tan, C
Dispose of the needle properly (in a sharps container, and not in your regular garbage return it to the docs office or a biohazard collection site!) After the B12 shot is injected into your upper arm, thigh, hip, or butt, you should experience benefits right away
" N -acetylcysteine: A Review of Clinical Usefulness (an Old Drug with New Tricks)"
Sheth's Dr