Research Advance of Drug Polymorphism

Drug polymorphism has received extensive attention since it had been discovered,and scientists have got great achievements in research of polymorphism.However,the drug variety is so large and with the invention of new drugs,the research of polymorphism is also an arduous task.In this paper,on the basis of research,analysis and summary of a near decade of correlative literatures,the drug polymorphism,the research significance,the analysis method,the influential factors of crystal transformation.