The book is organized by organ system affected instead of by herbal name, so it will have headings such as "agents acting on the nervous system" or "agents acting on the heart". This type of listing is somewhat controversial as herbal medicines tend to work on more than one system.
The book's arrangement by bodily system instead of botanical name yields a distinctive layout, characterized by titles such as "agents influencing the nervous system" or "agents influencing the heart". This method is disputed because herbal medications frequently affect several systems.