HYDROXYZINE (hye DROX i zeen) is an antihistamine. This medicine is used to treat allergy symptoms. It is also used to treat anxiety and tension. This medicine can be used with other medicines to induce sleep before surgery.
Take this medicine by mouth with a full glass of water. Follow the directions on the prescription label. Shake well before using. Use a specially marked spoon or dropper to measure every dose. Ask your pharmacist if you do not have one. Household spoons are not accurate. You may take this medicine with food or on an empty stomach. Take your medicine at regular intervals. Do not take your medicine more often than directed.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed. While this drug may be prescribed for children as young as 2 years of age for selected conditions, precautions do apply.
Patients over 65 years old may have a stronger reaction and need a smaller dose.
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
changes in vision
fast, irregular heartbeat
trouble passing urine or change in the amount of urine
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
Do not take this medicine with any of the following medications:
This medicine may also interact with the following medications:
antihistamines for allergy, cough, and cold
barbiturate medicines for sleep or seizures, like phenobarbital
certain antibiotics like erythromycin or clarithromycin
certain medicines for anxiety or sleep
certain medicines for bladder problems like oxybutynin, tolterodine
certain medicines for depression or psychotic disturbances
certain medicines for irregular heart beat
certain medicines for Parkinson's disease like benztropine, trihexyphenidyl
certain medicines for seizures like phenobarbital, primidone
certain medicines for stomach problems like dicyclomine, hyoscyamine
certain medicines for travel sickness like scopolamine
narcotic medicines for pain
other medicines that prolong the QT interval (an abnormal heart rhythm)
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Do not freeze. Protect from light. Throw away any unused medicine after the expiration date.
They need to know if you have any of these conditions:
history of irregular heartbeat
lung or breathing disease, like asthma
stomach or intestine problems
trouble passing urine
an unusual or allergic reaction to hydroxyzine, cetirizine, other medicines, foods, dyes or preservatives
pregnant or trying to get pregnant
Tell your doctor or health care professional if your symptoms do not improve.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe.
This medicine may cause dry eyes and blurred vision. If you wear contact lenses you may feel some discomfort. Lubricating drops may help. See your eye doctor if the problem does not go away or is severe.
If you are receiving skin tests for allergies, tell your doctor you are taking this medicine.