Kollidon® SR

Kollidon ® SR is a polyvinyl acetate and povidone based matrix retarding agent. It is particularly suitable for manufacturing of pH-independent sustained-release matrix tablets by direct compression or hot melt extrusion. Polyvinyl acetate is a very plastic material that produces a coherent matrix even under low compression forces and the water soluble povidone is leached out to form pores through which the active ingredient slowly diffuses outwards. Kollidon ® SR contains no ionic groups and is therefore inert to drug substances.

Kollidon ® SR has also found success as a polymeric film former in sprayable topical formulations as well as transdermal applications.