Abstract
There are varieties of DDS (drug delivery system) technologies and a very significant number of DDS medicines already launched out in the world. It is not too much to say that DDS has established itself as one of the major tools for drug development. DDS technology has become more and more important for the pharmaceutical companies, because it is very difficult for them to discover the novel drugs these days. Each DDS technology has not only advantages but also limitations respectively based on its characteristics, so it is considered very important to understand individual DDS technology in detail for development of DDS medicines.
