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  2. Which Allergy Medicine Is Actually Most Effective? - AOL

    www.aol.com/lifestyle/allergy-medicine-actually...

    “While antihistamines [like Zyrtec and Claritin] can help with sneezing, itching and runny nose, first line therapy for relief of nasal congestion includes a steroid or antihistamine nose spray.”

  3. Antihistamine - Wikipedia

    en.wikipedia.org/wiki/Antihistamine

    An H 3-antihistamine is a classification of drugs used to inhibit the action of histamine ... (Claritin), cetirizine (Zyrtec), and fexofenadine (Allegra) were ...

  4. Cetirizine - Wikipedia

    en.wikipedia.org/wiki/Cetirizine

    Cetirizine is a second-generation antihistamine used to treat allergic rhinitis (hay fever), dermatitis, and urticaria (hives). [5] It is taken by mouth. [6] Effects generally begin within thirty minutes and last for about a day. [6] The degree of benefit is similar to other antihistamines such as diphenhydramine, which is a first-generation ...

  5. H1 antagonist - Wikipedia

    en.wikipedia.org/wiki/H1_antagonist

    H 1-antihistamines can be administered topically (through the skin, nose, or eyes) or systemically, based on the nature of the allergic condition. The authors of the American College of Chest Physicians Updates on Cough Guidelines (2006) recommend that, for cough associated with the common cold, first-generation antihistamine-decongestants are ...

  6. It's Not in Your Head: Doctors Say Allergy Season Is Getting ...

    www.aol.com/not-head-doctors-allergy-season...

    Some ingredients that doctors recommend looking for in antihistamines include cetirizine (Zyrtec), fexofenadine (Allegra), loratadine (Claritin), and levocetirizine dihydrochloride (Xyzal), Dr ...

  7. Anti-allergic agent - Wikipedia

    en.wikipedia.org/wiki/Anti-allergic_agent

    Zyrtec-D, an example of combination therapy. Combination therapy with antihistamines. Antihistamines and decongestants can be used as a combination to treat nasal congestion, runny nose, and sneezing symptoms caused by common cold and hay fever. Some examples include: Pseudoephedrine + Loratadine (Claritin-D®) Pseudoephedrine + Cetirizine