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Drugs reference index «cetirizine»

cetirizine
cetirizine


cetirizine

Generic Name: cetirizine (se TIR a zeen)Brand names: All Day Allergy, All Day Allergy Children's, Indoor/Outdoor Allergy Relief, Zyrtec, Zyrtec Hives, Zyrtec Children's Dye-Free Sugar-Free, Zyrtec Children's Perfect Measure

What is cetirizine?

Cetirizine is an antihistamine that reduces the natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.

Cetirizine is used to treat cold or allergy symptoms such as sneezing, itching, watery eyes, or runny nose.

Cetirizine is also used to treat itching and swelling caused by chronic urticaria (hives).

Cetirizine may also be used for other purposes not listed in this medication guide.

What is the most important information I should know about cetirizine?

Cetirizine can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert. Avoid drinking alcohol. It can increase some of the side effects of cetirizine. Tell your doctor if you regularly use other medicines that make you sleepy (such as other cold or allergy medicine, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression, or anxiety). They can add to sleepiness caused by cetirizine. Call your doctor if your symptoms do not improve, if they get worse, or if you also have a fever.

What should I discuss with my healthcare provider before taking cetirizine?

You should not use this medication if you are allergic to cetirizine.

Before taking cetirizine, tell your doctor about all of your medical conditions.

FDA pregnancy category B. This medication is not expected to be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment. Cetirizine can pass into breast milk and may harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

Older adults may need to take a lower than normal dose. Follow your doctor's instructions.

How should I take cetirizine?

Take this medication exactly as directed on the label, or as prescribed by your doctor. Do not use it in larger amounts or for longer than recommended.

You may take this medication with or without food.

The chewable tablet must be chewed before you swallow it.

Measure liquid medicine with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.

Call your doctor if your symptoms do not improve, if they get worse, or if you also have a fever. Store cetirizine at room temperature away from moisture and heat.

See also: Cetirizine dosage in more detail

What happens if I miss a dose?

Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention if you think you have used too much of this medicine.

Overdose symptoms may include feeling restless or nervous, and then feeling drowsy.

What should I avoid while taking cetirizine?

Tell your doctor if you regularly use other medicines that make you sleepy (such as other cold or allergy medicine, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression, or anxiety). They can add to sleepiness caused by cetirizine. Cetirizine can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert. Avoid drinking alcohol. It can increase some of the side effects of cetirizine.

Cetirizine side effects

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 this medication and call your doctor at once if you have any of these serious side effects:
  • fast, pounding, or uneven heartbeat;

  • weakness, tremors (uncontrolled shaking), or sleep problems (insomnia);

  • severe restless feeling, hyperactivity;

  • confusion;

  • problems with vision; or

  • urinating less than usual or not at all.

Less serious side effects may include:

  • dizziness, drowsiness;

  • tired feeling;

  • dry mouth;

  • sore throat, cough;

  • nausea, constipation; or

  • headache.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Cetirizine Dosing Information

Usual Adult Dose for Allergic Rhinitis:

5 to 10 mg orally or chewed once a day

Usual Adult Dose for Urticaria:

5 to 10 mg orally or chewed once a day

Usual Pediatric Dose for Allergic Rhinitis:

6 months to 2 years: 2.5 mg orally once a day, 12 months and older may be increased to 2.5 mg orally twice a day.2 to 5 years: 2.5 mg orally once a day, may be increased to 5 mg/day in 1 to 2 divided doses.>=6 years: 5 to 10 mg orally or chewed once a day.

Usual Pediatric Dose for Urticaria:

6 months to 2 years: 2.5 mg orally once a day, 12 months and older may be increased to 2.5 mg orally twice a day.2 to 5 years: 2.5 mg orally once a day, may be increased to 5 mg/day in 1 to 2 divided doses.>=6 years: 5 to 10 mg orally or chewed once a day.

What other drugs will affect cetirizine?

There may be other drugs that can interact with cetirizine. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.

Where can I get more information?

  • Your pharmacist can provide more information about cetirizine.
  • Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
  • Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.
Copyright 1996-2006 Cerner Multum, Inc. Version: 8.02. Revision Date: 4/12/2009 4:41:52 PM.
  • Cetirizine Professional Patient Advice (Wolters Kluwer)
  • Cetirizine MedFacts Consumer Leaflet (Wolters Kluwer)
  • Cetirizine Prescribing Information (FDA)
  • Zyrtec Prescribing Information (FDA)
  • Zyrtec Detailed Consumer Information (PDR)
  • Zyrtec Consumer Overview

See Also...

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