Vitamin B12: How Frequently Should I Get It? URBAN Medical Fishersville, VA and Gilbert, AZ FREE B12 injections the month of October no purchase necessary. 1 per a person. This is to show appreciation to our customers. It also allows new clients the opportunity to try vitamin Cyanocobalamin vs Hydroxocobalamin (Vitamin B12 forms) Key Clinical Differences Hydroxocobalamin is preferred in: Pernicious anemia Severe vitamin B12 deficiency Neurological symptoms (subacute combined degeneration, neuropathy) Cyanocobalamin is How Often Should You Get Vitamin B12 Injections? Vitamin B12 Shots Specialist Near Me in Canton, MI