is vitamin b12 injections safe during pregnancy Injections: Benefits for Your Health Vitamin B12 in Pregnancy: What
Description
According to the Mayo Clinic, one of the most common medical uses of B-12 shots is for pernicious anemia

Kang L, Jiang D, Ehlerding E, Barnhart T, Ferreira C, Wang R, et al
A: Many clients feel a mild boost within 2448 hours, with more noticeable improvements in energy and focus over 13 weeks

Anyone with kidney disease should talk to their doctor about an appropriate B12 regimen

Mild headaches for a week might be acceptable
