"Amphetamine" is a book chapter of the college-level textbook for the book volume in the Principles of Neuropsychopharmacology course. It is a part of the Science Textbook Series authored by Nicoladie Tam, Ph.D. that also includes the Principles of Biology course. This book is written with specific pedagogical considerations to facilitate students' learning. It applies the proven best practices to motivate students in learning. It uses multiple pedagogical methodologies to engage students in active learning by participating in the knowledge acquisition process. It stimulates the curiosity of students by asking them questions and answering them immediately. It guides the students in their comprehension of knowledge by using examples and by giving them detailed explanations following the answers.