A healthcare provider may prescribe Vistaril® (hydroxyzine) to treat several conditions, such as nausea, vomiting, and allergic reactions caused by opioid medications. This medication is approved for use in adults and children.
Vistaril is available in the form of capsules, an oral suspension (liquid), and an injection. It is typically taken two to four times a day.
As a type of antihistamine, Vistaril works for allergic reactions (or itching reactions to opioids) by blocking histamine receptors. It probably works for anxiety by affecting certain parts of the brain. Vistaril also can cause relaxation of skeletal muscles and blocks acetylcholine receptors (which is probably why it helps to alleviate nausea).
Oral Vistaril capsules and suspension come in various strengths, including:
- Vistaril 25 mg capsules
- Vistaril 50 mg capsules
- Vistaril 100 mg capsules (available only in generic form)
- Vistaril 25 mg per 5 mL oral suspension.
The injectable form of Vistaril is available in two strengths.
(Click Vistaril for more information on how Vistaril can help treat several conditions. This article also discusses general dosing guidelines, safety precautions, and tips on effectively using this medication.)