The concept of blood purifier drugs is unique. These drugs are endowed with a number of pharmacological actions. An extensive search was carried out for this book to record all the available information in Unani literature on the concepts of blood, impure blood and blood purification. Unani classical books of different languages and discussion with experts were conferred with for this book. Contemporary reference books, relevant articles, peer reviewed indexed journals were assessed to find out on going current theories and advancement in the field of herbal medicine. This book may serve as a tool for a student, teachers, medical practitioner as well as common man seeking guidance in the field of blood purification by herbal drugs. Various scientific studies on blood purifier drugs on various common human diseases and different blood purifier medicine available in the market are also included in this book which helps Unani, Ayurvedic and Allopathic practitioner to treat diseases.