Taking the diabetic medication, Metformin, is associated with a higher risk for Vitamin B12 deficiency
Vitamin B12 deficiency can also result from poor nutrition, cancer, HIV, during pregnancy, old age, due to alcoholism
Tell your doctor if you are pregnant, plan on getting pregnant, or are breastfeeding
Medications know to cause bone marrow suppression (e.g., myelosuppressive antineoplastic agents) may result in a blunted or impeded response to methylcobalamin, vitamin B12 therapy
B12 Intravenoso: Applications in Acute Settings In urgent situations, like being in the hospital for a severe B12 deficiency or after some surgeries, IV B12 is very helpful