b12 injection doses for adults Cyanocobalamin (B12) 1000 mcg/mL, Multiple Dose Vial 30 mL B12 Injections: dosage, frequency, benefits,
Description
Some people can take an iron pill, but people with kidney failure may need to get iron through an injection or their hemodialysis tubing

10.1002/ncp.10596 5 BenskyM

The Journal of Urology , 201 (Supplement 4), e545-e545.

For example, one study found that after taking 1,000 mcg of oral vitamin B12, only about 1.3% (13 mcg) is absorbed into the bloodstream

REMEMBER there were only 20 patients alive at this point, probably barely alive and unable to cause problems

A doctor may suggest lowering the dosage by 10% to 25% every week or two, depending on how the person responds