b12 injection dosage monthly and Frequency: 7 Guidelines for Adults Vitamin B12 Injection Dose For
Description
When should I seek medical help after a B12 injection
(2004) Journal of Peptide Research Meta-analysis of safety data from multiple AOD 9604 trials examining injection site reactions, systemic AEs, and tolerability

Or are they basing it on the original term, since you showed signs of anemia in your blood
Thus, vitamin B-12 status should be determined before folic acid is given as monotherapy
