Vistaril (hydroxyzine pamoate) is an antihistamine with anticholinergic (drying) and sedative properties used as a sedative to treat anxiety and tension. l your doctor if you experience serious side effects of Vistaril including: Our Vistaril (hydroxyzine pamoate) Side Effects.
capsule, green/white, imprinted with WATSON 801, 50 mg.
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capsule, green/white, imprinted with Z 2909, Z 2909.
round, white, imprinted with 75, A.
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Cardiac System: QT prolongation, Torsade de Pointes.
round, white, imprinted with H 106.
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round, white, imprinted with SL, 07.
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round, blue, imprinted with M, H50.
Side effects reported with the administration of Vistaril are usually mild and transitory in nature.
capsule, dark green/light green, imprinted with E613, E613.
Involuntary motor activity, including rare instances of tremor and convulsions, has been reported, usually with doses considerably higher than those recommended.
Hydroxyzine is an antihistamine. It works by preventing the effects of a substance called histamine, which is produced by the body.
Make sure your doctor knows if you are pregnant. Do not use this medicine during the early part of a pregnancy unless your doctor ls you to.
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.
l your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines.
Medscape - Pruritis, sedation, anxiety-specific dosing forVistaril (hydroxyzine), frequency-based adverse effects, comprehensive interactions, contraindications.
May cause CNS depression resulting in drowsiness; avoid driving or operating dangerous machinery.
Documented hypersensitivity or related product including cetirizine and levocetirizine and components of the formulation Prolonged QT interval.
The above information is provided for general informational and educational purposes only. Individual plans may vary and formulary information changes. Contact the applicable plan provider for the most current information. From: To:
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Hydroxyzine, sold under the brand names Atarax and Vistaril among others, is a first-generation antihistamine. It was first synthesized by Union Chimique Belge in 1956 and was marketed by Pfizer in the United States later the same year and is still widely used today.
Somnolence with or without vivid dreams or nightmares may occur in users with antihistamine sensitivities in combination with other CNS depressants. Hydroxyzine exhibits anxiolytic and sedative properties in many psychiatric patients. Other studies have suggested that hydroxyzine acts as an acute hypnotic, reducing sleep onset latency and increasing sleep duration — also showing that some drowsiness did occur. This was observed more in female patients, who also had greater hypnotic response. 
Hydroxyzine is synthesized by the alkylation of 1-(4-chlorobenzohydril)piperazine with 2-(2-hydroxyethoxy)ethylchloride: 
Use of hydroxyzine for premedication as a sedative has no effects on tropane alkaloids, such as atropine, but may, following general anesthesia, potentiate meperidine and barbiturates, and use in pre-anesthetic adjunctive therapy should be modified depending upon the state of the individual.
Find patient medical information for Hydroxyzine Hcl Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings.
Consult your doctor before breast -feeding. It is unknown if this drug passes into breast milk.
Things to remember when you fill your prescription.
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List Hydroxyzine Hcl side effects by likelihood and severity.
What should I know regarding pregnancy, nursing and administering Hydroxyzine Hcl to children or the elderly?
l your doctor right away if you have any serious side effects, including: mental/mood changes (such as restlessness, confusion, hallucinations ), shaking (tremor), difficulty urinating.
QT prolongation can rarely cause serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting ) that need medical attention right away.