IMPORTANCE OF STEREOCHEMISTRY IN MEDICINCE BHANU KIRAN STUDENT OF NIT WARANAGAL Abstract : There are medicines that are used in present scenario to treat covid-19 but not only that there are many medicines to treat many diseases & problems. But some of them may also cause side effects this due to many reasons one of the reasons for that is structural property of medicine. In this we are going to discuss about Thalidomide medicine structural property that is stereochemistry and its causes, and how its stereochemistry is important in medicine. Introduction : We know that world is moving towards the modernisation in every field. There are many inventions are taking place but some of them might have some negative effect. This kind of aspect we can also see in pharmaceutical field, that some medicines also have side effects this may due to many reasons one of them is structural property, so there is a need to study stereochemistry of medicine. Thalido