Other drugs that should be mentioned since the respiratory therapist will be in contact with them frequently are digitalis quinidine and other major cardiac drugs lidocaine is mentioned as a topical anesthetic agent and its use in the treatment of cardiac arrhythmia is simply mentioned in the section on basic pharmacology. As im sure youre already aware pharmacology is one of the most important subjects that you will learn about in respiratory therapy school with that said its also course that many students struggle with knowing the ins and outs of all the respiratory medications is crucial for anyone who wants to be a successful respiratory therapist. This basic pharmacology video reviews respiratory system medications this video is designed for the nursing student to master basic pharmacology content. Ribavirin is used to treat severe infections caused by respiratory syncytial virus zanamivir is an antiviral agent used to treat influenza in adults it has recently gained attention as the inhaled drug of choice to fight possible pandemic influenza