Film coatings of this type are now in widespread use throughout the world. Although drug properties are the key factor in medicinal formulations, the physical form or the finish of a preparation is also important. PHARMACOAT®
is easy to use as a film coating material and gives an excellent finish. It is very versatile, and is suitable for many applications in the design of film-coated tablet formulations.
film has the tough and flexible characteristics of cellulose derivatives. Although PHARMACOAT®
film is not brittle, as acrylic polymer is, addition of a plasticizer such as polyethylene glycol (PEG 6000) is effective when highly flexible film is required. When PHARMACOAT®
film is used for film coating, sometimes titanium dioxide (TiO2
) or talc is recommended to be added.