b6 b9 b12 injection Methylcobalamin (Vitamin B12) Rx only Sold in 100 mL B12 INJECTIONS - The Nurse
Description
Some practitioners suggest methylcobalamin for certain conditions, though robust comparative trials are lacking

J Endocrinol Metab
Self-Administration Training and Protocols For those needing long-term Vitamin B12 injections, self-administration training is often necessary

How Often Can I Take B12 Injections