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  2. Fexofenadine - Wikipedia

    en.wikipedia.org/wiki/Fexofenadine

    Fexofenadine, sold under the brand name Allegra among others, [10] is an antihistamine pharmaceutical drug used in the treatment of allergy symptoms, such as hay fever and urticaria. [ 11 ] Therapeutically, fexofenadine is a selective peripheral H 1 blocker .

  3. You May Want To Skip Allergy Meds With Decongestant In The ...

    www.aol.com/may-want-skip-allergy-meds-155300887...

    Allergy 24-Hour Gelcaps. Allegra Gelcaps, a type 1 histamine blocker, work best for skin symptoms, according to Dr. Chaudry. These fast-acting capsules are said to offer 24-hour non-drowsy relief ...

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

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

    Zyrtec works by blocking the histamine 1 receptor in your body, explains David Corry, MD, professor of allergy medicine at Baylor College of Medicine in Houston. “Histamine is a chemical that is ...

  5. Antihistamine - Wikipedia

    en.wikipedia.org/wiki/Antihistamine

    Antihistamines are drugs which treat allergic rhinitis, common cold, influenza, and other allergies. [1] Typically, people take antihistamines as an inexpensive, generic (not patented) drug that can be bought without a prescription and provides relief from nasal congestion, sneezing, or hives caused by pollen, dust mites, or animal allergy with few side effects. [1]

  6. How to Choose the Best Cold Medicine, According to Medical ...

    www.aol.com/choose-best-cold-medicine-according...

    CHOOSING THE BEST COLD MEDICINE can be overwhelming. ... Pseudoephedrine, such as Allegra-D (which also contains an antihistamine) or Sudafed 12/24, is an alternative for phenylephrine to treat ...

  7. H1 antagonist - Wikipedia

    en.wikipedia.org/wiki/H1_antagonist

    H 1 antagonists, also called H 1 blockers, are a class of medications that block the action of histamine at the H 1 receptor, helping to relieve allergic reactions.Agents where the main therapeutic effect is mediated by negative modulation of histamine receptors are termed antihistamines; other agents may have antihistaminergic action but are not true antihistamines.

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