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 ...

Hydroxyzine HCl prescription and dosage sizes information for physicians and healthcare professionals. Pharmacology, adverse reactions, warnings and side effects.

Hydroxyzine (whose brand names include Vistaril) and Benadryl (the brand name of diphenhydramine) are both first-generation antihistamines and share many similarities, including sedating side effects.

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 ...

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 ...

Hydroxyzine HCl 10mg, 25mg, 50mg; tabs.