Do not take Vitamin B12 Injection if you are allergic to Vitamin B12, cobalt, or any other ingredients in the tablets, have hereditary optic atrophy (loss of some or most of the nerve fibers in the optic nerve)
However, full effects are usually felt after your third dose
What Is a B12 IV Infusion and How Does It Work
It is also effective as an oral step-down agent for patients that have responded to the initial treatment of intravenous (IV) corticosteroids (hydrocortisone 100mg four times a day) following hospitalisation for acute severe ulcerative colitis (ASUC)[1,31]
For broader pharmacokinetic context, see Peptide Half-Life Explained: Why Some Peptides Last Hours and Others Days
AOD9604 is administered either orally as a tablet or as an injection, with no scientifically validated evidence on dosing and usage being available