how long of a needle for b12 injection to self-inject intramuscular vitamin - Overview How Often Should You Get

PLoS ONE 7 , e33277 (2012)

Pharmacies are responsible for ensuring medications are stored appropriately before dispensing, but patients should verify the expiration date is adequate for their dosing schedule

Mar 2021;36(3):401-407

The answer depends on whether youll inject subcutaneously (SQ) or intramuscularly (IM)

Without this step, the bolus would remain too acidic to bind with intrinsic factor, a protein that pairs with B12 so that the body can use it

Self-prescribing or obtaining injections from unregulated sources carries significant risks , including receiving inappropriate treatment, masking underlying conditions, and exposure to contaminated or substandard products