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Doctor insights on: Zyrtec History

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Dr. John Chiu
561 doctors shared insights

Cetirizine (Definition)

Ceftirizine is the generic name of an antihistamine previously marketed under the ...Read more


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How long can you take zyrtec?

How long can you take zyrtec?

Depends: on the condition, some would take it for years, but if you need it for long, better run it by tour doctor, best wishes ...Read more

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Is it okay to take 20 mg zyrtec/ daily?

Is it okay to take 20 mg zyrtec/ daily?

Probably: Although the usual dose of zyrtec (cetirizine) for an adult is 10 mg daily, under the direction of a physician, some patients may need more. It would be important to discuss the dosing with your physician as another approach to treatment may be indicated. Avoid drinking alcohol and be aware that drowsiness may be more likely at higher doses. ...Read more

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Does crushing a Zyrtec pill make it less effective?

Does crushing a Zyrtec pill make it less effective?

No, it's bitter: When you chew or crush the tablet of cetirizine (Zyrtec) it does get into your system a little bit quicker but it doesn't reduce the effective time. It should still give you antihistamine effect for 24 hours. ...Read more

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Is it okay to be taking Zyrtec 10mg twice a day along with one tablet of Coaprovel 125/12.5?

Recommendation : Zyrtec 10 mg should be taken just once a day. Not twice. Coaprovel is ok with Zyrtec. ...Read more

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I accidentally took an expired (18 months ago!) Zyrtec pill. Should I take the correct (unexpired) one nowbad well or should I wait 24 hours?

Wait: Medication can lose it's effectiveness past expiration date, but I would not expect it to not be effective at all; especially if only 18 months expired. It will not be harmful at all that you took an expired zyrtec. It will probably still be almost as effective as it was prior to expiration, so I would just wait and take a new one at your normal time the next day. Hope this helps! ...Read more

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Zyrtec vs cetirizine?

Zyrtec vs cetirizine?

Same and different: Both one and same thing antihitamine once a day pill generic vs no generic, both over the counter. Should be taken at night as it can make you sleepy. Try not to take every day every pill has side effects. ...Read more

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What is zyrtec (cetirizine) used for?

What is zyrtec (cetirizine) used for?

Allergies and hives: Zyrtec (cetirizine) is a new generation antihistamine that is FDA approved for relieving the symptoms of :: Seasonal Allergic rhinitis (hay fever) from pollen in patients over 2 years old Perennial allergic rhinitis: year round allergies in patients over 6 months old Chronic Urticaria (hives) in those over 6 months old It has been shown to prevent itching and decrease size of mosquito bites! ...Read more

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What are the ingredients of zyrtec (cetirizine)?

What are the ingredients of zyrtec (cetirizine)?

Cetirizine (active): The active ingredient does the work. Pills may also contain preservatives, food dyes, stabilizers, and a coating. ...Read more

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How to open package zyrtec-d?

How to open package zyrtec-d?

Carefully: Open it very carefully according to the instructions on the box. Otherwise, return to pharmacy and ask them to show you how to open the package. ...Read more

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How long for zyrtec (cetirizine) to work?

About 1 hour: The onset of action for zyrtec (cetirizine) to clinically improve symptoms is about 1 hour. The reference is listed here: http://www.Ncbi.Nlm.Nih.Gov/pubmed/11770694. ...Read more

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How long can you take zyrtec (cetirizine)?

Zyrtec (cetirizine) use: Zyrtec (cetirizine) can be taken daily indefinitely, there are no long term side effects from accumulated drug. ...Read more

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How much zyrtec (cetirizine) can you take?

How much zyrtec (cetirizine) can you take?

Follow Directions: The directions for taking zyrtec (cetirizine) are on the bottle. One should not exceed these dosing recommendations. ...Read more

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Can i take zyrtec (cetirizine) twice a day?

Yes: It is safe if you need to take it twice daily. Do note that you may get drowsy from it. ...Read more

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Can i take more than one zyrtec (cetirizine)?

Can i take more than one zyrtec (cetirizine)?

Zyrtec (cetirizine): The recommended dosage is 10mg once a day. More than that is considered an overdose and would not be recommended. ...Read more

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Is zyrtec (cetirizine) safe for everyday use?

Yes with caution: If zyrtec (cetirizine) is needed every day to control symptoms for more than a week or two , a patient needs evaluation as possibly there is a chronic allergic disorder that needs more study, may be another medication needs to be prescribed, some patients are taking zyretc or other antihistamines for extended periods under medical supervision. ...Read more

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Can you take zyrtec (cetirizine) twice daily?

Most likely: If you are taking zyrtec (cetirizine) once a day and it does not make you significantly sleepy, you will be fine. A number of conditions are treated with zyrtec (cetirizine) or other antihistamines more than once a day and this is widely accepted. ...Read more

Dr. John Chiu
541 doctors shared insights

Zyrtec (Definition)

Zyrtec is a non-sedating antihistamine which is a kind of antihistamine type drug (common ...Read more