This book reviews drug delivery systems as mechanisms to introduce
therapeutic agents into the body to help or improve tissue function, and
examines different drug delivery systems applied in various organs. To
date, polymeric systems, ceramic particles or composites have been used
in different applications such as injectable, coatings of implants,
scaffolds, or implantable devices. Such systems should be able to retain
the therapeutic agent and release it in uniform amounts at a specific
time.