... can be used as dispersant, film-forming agent, viscosity-enhanceme-nt agent, lubricator and adhesive. They are used either ... assistant and stabilizer for injection ,flow assistant for capsule, dispersant for liquid medicine and stain, stabilizer for enzyme and heat ... drug ,coprecipitant for poorly soluble drugs ,lubricator and antitoxic assistant for eye drug and film-fromng agent for coating. PVP ...