oral vitamin b12 vs injection Efficacy of different routes of supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis 7 Key Benefits of Vitamin

inmunosupresores como corticosteroides, ciclosporina (utilizado en el transplante de rganos, entre otras enfermedades)

[DOI] [PMC free article] [PubMed] [Google Scholar] 25.Bizzaro N, Antico A

The decision not to take serum methylnalonic acid and homocysteine concentrations into account as diagnostic markers and outcome variables was made bearing in mind that these are not normally determined, either at diagnosis or during follow-up, in patients with a vitamin B12 deficiency

When DNA synthesis is impaired your Red Blood Cells swell and enlarge

How long it lasts can be anywhere from a few minutes to hours, based on the dose and how well the patient can handle it