Prefilled syringes are medical devices that are preassembled and come with a premeasured amount of drug or vaccine that is ready to use right away. They are disposed of after usage and are intended to be single-use only. Prefilled syringes usually come with a needleless delivery method or a barrel, plunger, and needle. The syringe is used for subcutaneous, intramuscular, or intravenous...