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http://www.medscape.com/viewarticle/503104_Figures This link listed above will bring you to a site that provides diagrams which illustrate the immune response. Zyrtec is an H1-receptor antagonist. Zyrtec appears to compete with the histamine molecule (produced by mast cells) for cellular binding sites... so the histamine lacking for an available binding site does not have a chance to trigger a series of events which result in the allergic symptoms we experience.
Wiki User
∙ 16y ago
Wiki User
∙ 16y agoIt helps block the production of "histamines" a normal component of the body's chemical response to allergens, and therfeore helps reduce inflammation and secretions.
Wiki User
∙ 12y agoblocks histamine from binding to its receptor. histamine normally causes the allergy symptoms by interacting with this receptor, therefore, Zyrtec reduces these histamine-mediated symptoms
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What is Zyrtec for?
Zyrtec is an antihistamine prescribed or bought over-the-counter primarily for help with Allergies. It works by preventing the release of histamine, which causes the symptoms of allergies. It is used during the day due to its low incidence of drowsiness.
What is the drug Zyrtec used to treat?
Zyrtec is an antihistamine prescribed or bought over-the-counter primarily for help with allergies. It works by preventing the release of histamine, which causes the symptoms of allergies. It is used during the day due to its low incidence of drowsiness.
I have summer allergies.?
The best over the counter medications for allergies are Zyrtec, Allegra and Benadryl. Zyrtec and Benadryl can cause fatigue so it's best to take it at night.
Should i increase my dosage if my allergies get worse?
i have been using zyrtec 24hr and i hear my allergies are getting worse and its not the meds wearing off. so shall i increase the amount of zyrtec i consume?
Who is the brunette actress in the Zyrtec commercial with indoor and outdoor allergies?
Megan Paul.
What medicines can be used to treat nasal allergies?
Seasonal allergies are nver any fun. An over the counter allergy medicine like Claratin or Zyrtec will help with the sneezing. And alternative rememdy that helps is using a netti pot daily to flush your sinuses.
Can you tell me some good medicines that will help me with good allergy relief?
Benadryl, Claritin, and Zyrtec are three medicines that work well on allergies. I have mild seasonal allergies as well as moderate food allergies and use Benadryl. My sisters both have moderate reactions to food (pineapple) and use Benadryl for that but one of them has severe seasonal allergies and uses Zyrtec for that.If you are unsure of which one you should try, or simply would like to know more about each of them, you can always talk to your local pharmacist (often located at your local grocery store).
What is the side effect of Zyrtec because you using for long time for allergies puposei mean if you use Zyrtec up to the end of your life what will the side effect of Zyrtec for you?
Not sure what all side affects may be but when I take Zyrtec I start to cough. I recommend you take Claritin or the pill form of claritin: loratadine.
Can you use Zyrtec the day of surgery?
Yes actually. Most of the time, some doctors prescribe this medication prior to surgery as a prophylactic from allergies and also to help the patient relax and stay calm when going into surgery.
How do you stop spring allergy symptoms?
The best way to relieve seasonal allergies is to take an allergy medication such as Claritin (loratadine) or Zyrtec (cetirizine).
Can Tylenol sinus be taken along with Zyrtec?
Zyrtec contains cetirizine, it is a class of medications called antihistamines.Tylenol Sinus contains - Guaifenesin an expectorant and Phenylephrine HCl a nasal decongestant. The three drugs will probably be over kill on your allergies / sinuses.Check with your doctor or pharmacist to be sure.
Can you take Zyrtec and diphenhydramine?
No, you don't want to take two of the same medications. If the Zyrtec is not taking care of your allergies, don't take a second antihistamine on top of it. You need to switch from Zyrtec to some other antihistamine. It might be time to see your doctor and try a stronger antihistamine. Taking too much antihistamine can cause breathing difficulty.
