vitamin b12 injections in hendersonville tn B-12 Shots Benefits of Vitamin B12 Shots
Description
Specially packaged in preservative-free, single-dose 1 mL vials, this formulation is designed for maximum safety, sterility, and efficacy in hospital and procedural settings

The answer depends on what type of injection were talking about.

it also recommends that people over 50 receive half the RDA from fortified foods or supplements because that form of B12 is []

Not known: Frequency cannot be estimated based on the available data