Antivirals are a type of medication designed to treat viral infections. Unlike antibiotics, which target bacteria, antivirals specifically work against viruses like the flu, HIV, and COVID-19. They help to reduce the severity and duration of the illness by inhibiting the virus's ability to replicate in the body. These medications can come in various forms, such as pills, liquids, or injections. Some common examples of antivirals include oseltamivir for the flu and remdesivir for COVID-19. By blocking the virus's growth, antivirals play a crucial role in managing viral diseases and improving patient outcomes.