Polymeric Excipients for Controlled Release Applications

Thus polymers serve as key excipients in oral and parenteral CR formulations. Other excipients used in sustained release dosage forms have been covered in other chapters within this book. For example, parenteral CR dosage forms involving polymers would still have other excipients as discussed in the chapter on injectable excipients (Chapter 16). Similarly oral dosage forms will require consideration of other excipients depending on the nature of the drug, as discussed in Chapter 12. This chapter reviews some of the promising polymers used in this application. 

---