how to do a vitamin b12 injection Shots: B12 Injections Benefits, Uses, Risks How to Administer an Intramuscular
Description
People who dont produce enough IF can become deficient in vitamin B12, and are good candidates for B12 shots, says Foxx
AOD-9604 is not FDA-approved, so a clinician will evaluate the reaction without label-based guidance

As described by Cant et al

Chloramphenicol can antagonize the hematopoietic response to Methylcobalamin, vitamin B12 through interference with erythrocyte maturation
