Antiviral drugs are medications used to treat viral infections by inhibiting the replication and spread of viruses in the body. They work by targeting specific components of the virus, such as viral enzymes or proteins, to prevent the virus from multiplying and causing further harm. Antiviral drugs can be used to treat a variety of viral infections, including influenza, HIV, herpes, hepatitis, and more. These drugs can help to reduce the severity and duration of symptoms, as well as prevent the spread of the virus to others. Antiviral drugs are an important tool in the treatment and management of viral infections, and ongoing research is focused on developing new and improved antiviral medications to combat emerging viral threats.