AMHERST, N.H.--(BUSINESS WIRE)--The administration of therapeutic drugs via injection is an indispensable delivery method for numerous drugs critical to patient health and well-being. Now this segment is evolving in response to changing patient populations, new classes of powerful therapeutic drugs, and healthcare administration initiatives. Population demographics and efforts by managed care providers to control healthcare costs are driving the growth in drug self-administration, particularly for chronic conditions, introducing a new class of naïve users to parenteral drug delivery. User-friendly syringe and injection device designs and the availability of an increasing number of drugs in pre-filled insertable and disposable cartridges are propelling the growth of prefilled syringes across all user segments.