Book excerpt: Take the easiest path to respiratory pharmacology mastery with Rau's Respiratory Care Pharmacology, 9th Edition. With broken-down terminology, relatable explanations, and reader-friendly writing, Rau simplifies the process of learning pharmacology material like never before to prepare you for success on your exams and in professional practice This new edition includes the most recent advances related to apneic and asthmatic pharmacology, twice the number of clinical scenarios, more drug formulation tables, and a new mobile app for interactive drug flashcards.