Screening for Amorphous Drug Substance
article
internal
The term amorphous is used loosely in the pharmaceutical industry. A strict definition would limit amorphous to those materials which truly have no long range order, only the short range order characteristic of liquids. However, the term is popularly used to encompass other materials, such as disordered crystalline and microcrystalline solids. In this application note, amorphous is used in the popular way. A thoughtful analysis of terminology will be the subject of a future application note.