In an era of complex drug delivery systems, the distinction between "inactive" and "active" ingredients is becoming blurred. Excipients often control the release rate and bioavailability of a drug. The 9th Edition addresses this by providing the Functional Category and Mechanism of Action for each substance, moving beyond simple descriptive data to functional intelligence.
: Inclusion of modern materials, particularly those used in advanced drug delivery systems like biologics or nanotechnology. handbook of pharmaceutical excipients 9th pdf