"What are allergies?
Allergies occur when the body's immune system responds to a substance it considers an "invader." Substances that provoke the immune system into an allergic response are known as allergens. There is no such thing as a"...
(hydroxyzine pamoate) Capsules and Oral Suspension
Hydroxyzine pamoate is designated chemically as 1-(p-chlorobenzhydryl) 4- [2-(2-hydroxyethoxy) ethyl] diethylenediamine salt of 1,1'-methylene bis (2 hydroxy- 3-naphthalene carboxylic acid).
Inert ingredients for the capsule formulations are: hard gelatin capsules (which may contain Yellow 10, Green 3, Yellow 6, Red 33, and other inert ingredients); magnesium stearate; sodium lauryl sulfate; starch; sucrose.
Inert ingredients for the oral suspension formulation are: carboxymethylcellulose sodium; lemon flavor; propylene glycol; sorbic acid; sorbitol solution; water.
What are the possible side effects of hydroxyzine (Vistaril)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using hydroxyzine and call your doctor at once if you have a serious side effect such as:
- restless muscle movements in your eyes, tongue, jaw, or neck;
- tremor (uncontrolled shaking);
- confusion; or
- seizure (convulsions).
Less serious side effects may include:
- dizziness, drowsiness;
- blurred vision, dry mouth; or
Last reviewed on RxList: 6/16/2014
This monograph has been modified to include the generic and brand name in many instances.
Additional Vistaril Information
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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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