Hydroxyzine is a commonly prescribed antihistamine used to treat allergies, itching, and anxiety. Hydroxyzine can interact with various medications and substances, including central nervous system ...

To learn more about these conditions and how hydroxyzine is used for them, see the “What is hydroxyzine used for?” section below. Hydroxyzine is classified as an antihistamine. You’ll take hydroxyzine ...

Common side effects of hydroxyzine include drowsiness, dry mouth, and headache. Serious side effects such as hallucinations and allergic reactions are also possible. The side effects of hydroxyzine ...