Antiviral medications are drugs designed to treat viral infections by inhibiting the development and replication of viruses. They work by targeting specific stages of the viral life cycle, which helps to reduce the severity and duration of illnesses caused by viruses such as influenza, HIV, and herpes. These medications can be used for both treatment and prevention. For example, some antivirals are prescribed to manage chronic conditions like HIV/AIDS, while others may be given to prevent infection after exposure to a virus. Overall, antiviral medications play a crucial role in managing viral diseases and improving patient outcomes.