More commonly used is corn starch , due to its stable nature ,and don’t work with most drugs . Water content is 12% ~15% . In production , often mixed with better compressibility of sugar and dextrin . Due to the poor compressibility of starch , if alone used , the extruded drug is too loose
Taboo:Some strong acidity drugs , do not use starch as a filter , because the wet particles in the drying process can make the starch partially hydrolyzed, affecting the quality of the tablet.