Issues in the selection of local anesthetics.

Several factors influence the safety with which neural blockade is performed, and something as simple as proper packaging can make a significant difference. For example, bulk packaging, individual boxes, and labels all should be color coded for easy identification and to alert the prescriber of ingredients requiring particular caution. One must also take care not to confuse single-use with multiple-use products, if the latter cannot be eliminated from formulary. Furthermore, substitutions must be made properly, particularly to avoid complications associated with products that contain preservatives.