This book is a reading and writing manual for healthcare professionals and the public interested in how anaesthetic agents work. It is a Bi-Lingual in English and Chinese language for learners in the Chinese as a second language course organised by the Author. It provides essential information on general anaesthetic pharmacology. The review will aid in a patient-centric approach to anaesthesia practice and considerations for dosage regimens in a gender-wise and ethnic fashion for best results in recovery from general anaesthetics.