Virazole is a medication that is commonly used to treat respiratory infections caused by the respiratory syncytial virus (RSV). It is a broad-spectrum antiviral agent that helps to reduce viral replication by inhibiting RNA synthesis. Although Virazole is the most common name used to refer to this medication, it is also known by several other names, including ribavirin, Rebetol, and Copegus. Ribavirin is the generic name for Virazole, while Rebetol and Copegus are brand names for the same medication. Synonyms for Virazole include antiviral, antitumor, antineoplastic, antiparasitic, and antifungal. These terms are often used interchangeably to describe medications that have similar antiviral properties.