Hydroxyzine can interact with central nervous system depressants, increasing the risk of extreme sedation. Hydroxyzine may cause a heart condition called QT prolongation, which can be more likely if ...

Hydroxyzine is an antihistamine that can help treat anxiety, allergies, itchy skin, and some rashes. No recent research has identified potential interactions between hydroxyzine and cannabis, but this ...

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 ...