THE PLASTIC CONTAINER IS MADE FROM MULTILAYERED FILM SPECIFICALLY DESIGNED FOR PARENTERAL DRUGS. IT CONTAINS NO PLASTICIZERS AND EXHIBITS VIRTUALLY NO LEACHABLES. THE SOLUTION CONTACT LAYER IS A RUBBERIZED COPOLYMER OF ETHYLENE AND PROPYLENE. THE CONTAINER IS NONTOXIC AND BIOLOGICALLY INERT. THE CONTAINER-SOLUTION UNIT IS A CLOSED SYSTEM AND IS NOT DEPENDENT UPON ENTRY OF EXTERNAL AIR DURING ADMINISTRATION. THE CONTAINER IS OVERWRAPPED TO PROVIDE PROTECTION FROM THE PHYSICAL ENVIRONMENT AND TO PROVIDE AN ADDITIONAL MOISTURE BARRIER WHEN NECESSARY.