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Most Commonly Used

Hydroxyzine HCl 10mg/5ml Soln
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Hydroxyzine HCl 25mg Tab
Heritage Pharmaceuticals Inc.
Pill Identification: H 501 
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Hydroxyzine HCl 10mg Tab
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Hydroxyzine HCl 25mg Tab
Glenmark Pharmaceuticals
Pill Identification: IG  |  276
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Hydroxyzine HCl 50mg Tab
Heritage Pharmaceuticals Inc.
Pill Identification: H 502 
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Also See:

  • Answers to Frequently-Asked Questions (FAQs)
  • Other Class Related Drugs
  • Additional Patient Usage Statistics

Common Side Effects of Hydroxyzine Hydrochloride
Before you start taking hydroxyzine, be sure to tell your doctor about any allergies you have. Give your doctor a complete list of all the medicines you are taking, including over-the-counter and herbal supplements. Some medicines may interact with hydroxyzine. If you keep a complete list of medicines, then you will have a record that you can easily give to all your doctors when they want to know what medicines you take. Tell your doctor about any medical condition you have before you start on hydroxyzine. You should also tell your doctor or dentist if you are taking hydroxyzine before you have surgery.

Tell your doctor if you have had any of the following conditions:
  • Asthma
  • Glaucoma or ulcers
  • Trouble urinating
  • Heart or liver disease
  • High blood pressure or seizures
  • An overactive thyroid gland
You should also tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding before you start taking hydroxyzine.

Do not operate machinery or do anything that needs mental alertness until you know how hydroxyzine affects you. Be honest with your doctor about how much alcohol you typically drink each day. Taking hydroxyzine with alcohol can make you too drowsy. Hydroxyzine can cause some side effects. Call your doctor if any side effect becomes worse or does not go away. In addition to drowsiness, hydroxyzine may also cause the following side effects:
  • Nausea and dizziness
  • Dryness in your mouth, nose, or throat
  • Headache
  • Fatigue
  • Stomach upset
  • Constipation
You should get immediate emergency attention if you have any of the following:
  • Fast or irregular heartbeat
  • Difficulty passing urine
  • Seizures
  • Slurred speech or confusion
  • Tremor
  • Trouble breathing
  • Muscle weakness
  • Increasing anxiety