That is the entire structural difference
Vitamin B12 injections are supplemental treatments containing cyanocobalamin, a synthetic form of vitamin B12
MILK (Cattle): Zero (0) days
Some patients may notice symptoms returning before their next scheduled injection, particularly if they have higher metabolic demands or ongoing neurological involvement
Following injection of lambs with 1mL from 3 weeks of age (at tailing), vitamin B12 levels would be expected to be maintained at adequate concentrations for 180 days (4.5 months), and in some cases up to 200240 days (5-6 months)
Two types of medications for ulcers and gastric reflux proton-pump inhibitors, such as omeprazole (Prilosec) and lansoprazole (Prevacid), and H2 blockers like cimetidine (Tagamet), famotidine (Pepcid), and ranitidine (Zantac) inhibit the release of stomach acid necessary to free dietary vitamin B12