keep bleeding after b12 injections 3 monthly : r/B12_Deficiency Vitamin B12 Injections - Vie
Description
The effects of a B12 shot usually last one to two weeks, but the vitamin itself can stay in your system longer

Vitamin B12 supports energy production, brain function, and red blood cell formation
How Long Does It Take Vitamin B12 Injections to Work

It is powerful, but it is not something to start without oversight

Vitamin B12 is stored principally in the liver

Dosage and frequency depend on your individual needs and the underlying reason for treatment
