Vaccines and injectable biologics are not always used in perfect environments. Indeed, they regularly need to be deployed in emergency situations or in remote areas to respond to outbreaks of disease. Prefilled syringes are often better suited to these applications due to the speed at which they can be delivered and the fact that less specialism is needed for tasks like drug reconstitution. Medical professionals have responded positively to the benefits of prefilled technologies, as in studies by prefilled syringe market leader Becton Dickinson, as many as nine out of ten healthcare professionals preferred prefills to standard syringes. For healthcare providers, the fact that prefilled syringes come ready to use with the exact drug dosage required is a major advantage, minimising the potential for dosage errors. Providing prefilled needles with exact dosages is not only convenient for medical users, it also prevents a huge amount of drug wastage for pharmaceutical companies. Typically, multidose or single-dose vials have a drug overfill of 20-25% to ensure the drug administrator always has enough to fill the correct dose and to account for human errors. The virtual elimination of overfill by prefilled syringes eradicates a major source of inefficiency in the manufacturing process, allowing larger quantities of drugs (the production of which is often highly expensive) to be sold and used.