Aqueous film coating is widely used in the pharmaceutical industry for improving organoleptic properties (color/taste/odor), easier brand identification, facilitating swallowing, protection from light and humidity etc. Many synthetic polymers, predominantly modified celluloses, are the most widely used tablet coating polymers, but suffer from many drawbacks.
Summary and conclusions
The specially pregelatinized, new-generation, hydroxypropyl starch polymer (LYCOAT®), exhibits significant advantages over HPMC in aqueous film coating.