ATARAX is a prescription medication that belongs to the class of antihistamines. It is commonly used to treat anxiety, allergies, and insomnia. Hydroxyzine works by blocking the action of histamine in the body, which helps to alleviate symptoms such as itching, runny nose, and sneezing. Additionally, it has sedative properties that can help calm the mind, making it an effective option for those experiencing anxiety or difficulty sleeping.