can b12 injections increase ferritin levels High Levels: Causes, Symptoms & Risks Do You Need a Prescription

It is a form of the vitamin

Neomycin, colchicine, para-aminosalicylic acid, or excessive alcohol intake longer than two weeks may cause malabsorption of vitamin B12. Chloramphenicol and other drugs having bone marrow suppressant properties may cause a lack of therapeutic response to vitamin B12

(4) The phenomenon is analogous to macroprolactin, where a large, largely inert complex inflates a routine result

But you may need to continue taking supplements for the rest of your life, depending on your situation

It may take a few weeks for the shots to "kick in", but you will see the results if you stay consistent with the injections

The best approach depends on the underlying cause of the deficiency