Hydroxyzine

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Hydroxyzine

Hydroxyzine (pronounced: /ˌhaɪdrəˈzaɪziːn/) is a first-generation antihistamine used to treat allergies, anxiety, and tension. It is also used together with other medications given for anesthesia. Hydroxyzine may also be used to control nausea and vomiting.

Etymology

The term "Hydroxyzine" is derived from its systematic name, which is (±)-2-(2-{4-[(4-chlorophenyl)-phenylmethyl]piperazin-1-yl}ethoxy)ethanol. The name is a combination of hydroxy, referring to the presence of a hydroxyl group, and azine, a common suffix for antihistamines.

Usage

Hydroxyzine is used to relieve itching caused by allergies. It does not prevent the actual release of histamine from cells but, rather, it works by blocking the action of histamine on certain cells. It is also used for its sedative and antiemetic effects.

Side Effects

Common side effects of Hydroxyzine include drowsiness, dry mouth, and headache. Serious side effects may include QT prolongation. It is unclear if use during pregnancy is safe; it appears relatively safe for use during breastfeeding.

Related Terms

  • Antihistamine: A type of medicine that blocks the effects of histamine, a substance in the body that causes allergic symptoms.
  • Anxiety: A feeling of worry, nervousness, or unease, typically about an imminent event or something with an uncertain outcome.
  • Nausea: A feeling of sickness with an inclination to vomit.
  • Vomiting: The forcible voluntary or involuntary emptying ("throwing up") of stomach contents through the mouth.

External links

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