Ribavirin, also known as virazole, is a broad-spectrum, relatively potent antiviral drug. This drug is commonly used for viral infections of the respiratory system, such as acute upper respiratory tract infections, acute bronchitis, acute attacks of chronic bronchitis, pneumonia, and the types of viruses including respiratory syncytial virus, rhinovirus, and adenovirus, all of which can be treated with ribavirin. This drug is commonly used in the form of tablets and granules in oral dosage, as well as oral liquids. When using this drug, it is recommended to use it early, especially in the three days before the onset of the disease with the best effect, which can reduce the number of viruses in the body to a certain extent and even shorten the course of the disease.