how is b12 injection made Cyanocobalamin B-12 Compliance Injection: Package Insert
Description
[16] [121] Investigations into the intestinal absorption of B 12 confirm that the upper limit of absorption per single oral dose is about 1.5 g, with 50% efficiency

van Duyvenvoorde, H

Factors such as individual risk assessment, potential side effects, timing of vaccination, and specific vaccine options need to be carefully evaluated

The J-code for the drug still travels with it on the claim
