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

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

    Loratadine is also used to treat symptoms of allergies, like runny nose, congestion, and itchiness. How Claritin works. Claritin works similarly to Zyrtec, Dr. Alan says, meaning it helps block ...

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

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

    Which is best — Zyrtec, Claritin or Allegra? These common medications are safe and effective for treating allergy symptoms and work similarly, Aungst says. It really comes down to which one best ...

  4. 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.

  5. Antihistamine - Wikipedia

    en.wikipedia.org/wiki/Antihistamine

    [22] [27] Subsequently, other non-sedating antihistamines like loratadine (Claritin), cetirizine (Zyrtec), and fexofenadine (Allegra) were developed and introduced. [22] The introduction of the first-generation antihistamines marked the beginning of medical treatment of nasal allergies. [28]

  6. This Popular Cold Medicine Doesn't Work—Here's What To Buy ...

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    “I actually recommend nasal steroid sprays like Flonase, Nasacort, Rhinocort or Nasonex; or nasal antihistamine sprays like Astepro, as well as antihistamine tablets like Zyrtec, Claritin ...

  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