It has been my great ambition to write a book in Pharmacology for B.Pharm. students and it transformed my ideas into a wonderful book, very suitable for easynreading. This book is the result of my dedicated and sincere efforts.The subject is made into three volumes, as per the syllabus of PCI. All informations have been presented neatly, clearly,coherently and in a systematic manner. Needless to say that the students and faculties will find this book very useful. Reading is believing. Just go through this book and it can be joyfully enjoyed and pleasantly recollected. I wish all the students a successful, fruitful, enjoyable and bright career. WISHING THEM ALL THE BEST IN LIFE Dr. N. MURUGESH