Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A nonsedating antihistamine, C22H23ClN2O2, used to treat allergic rhinitis and other allergic disorders.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun An antihistamine drug used to treat allergies

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[(ch)lor(o)– + (az)atadine, antihistamine from which it is derived (probably alteration of azo– + (hep)ta– + –(i)d(e) + –ine).]

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Examples

  • Start with over-the-counter antihistamines such as loratadine (Claritin) or cetirizine (Zyrtec), or home treatments like a nasal saline rinse.

    Allergies putting a damper on your Labor Day? Get relief with these tips 2009

  • Start with over-the-counter antihistamines such as loratadine (Claritin) or cetirizine (Zyrtec), or home treatments like a nasal saline rinse.

    Allergies putting a damper on your Labor Day? Get relief with these tips 2009

  • Still, if loratadine doesn't relieve your allergy symptoms, nonprescription Allegra could be an option to consider, along with cetirizine Zyrtec and generic, another related—but more expensive—antihistamine available without a prescription.

    Allergy drug Allegra goes OTC 2011

  • A good next move is to go to your pharmacist and get a long-acting non-sedating antihistamine, containing cetirizine or loratadine commonly sold as Zirtek and Clarityn respectively.

    The inside track on hay fever 2011

  • So for now, our Best Buy Drug pick for allergy relief remains loratadine, sold either as a generic or under the name Alavert.

    Allergy drug Allegra goes OTC 2011

  • Lower-cost generic loratadine, the active ingredient in the nonprescription drug Claritin (a best-selling prescription drug until 2002 when it became available without a prescription), has been shown to effectively relieve symptoms of hay fever, hives, and other allergies, and is our Best Buy pick.

    Get relief from your end-of-summer allergies 2010

  • Antihistamines such as Benadryl (diphenhydramine), Claritin (loratadine), and Zyrtec (cetirizine): for allergic reactions and hives.

    You Raising Your Child Michael F. Roizen 2010

  • Antihistamines such as Benadryl (diphenhydramine), Claritin (loratadine), and Zyrtec (cetirizine): for allergic reactions and hives.

    You Raising Your Child Michael F. Roizen 2010

  • Each drug is our recommended choice within its category: acetaminophen for fever reduction and pain relief; omeprazole for heartburn; and loratadine for seasonal allergies.

    Choosing store brands saves you money on medicine 2010

  • Antihistamines such as Benadryl (diphenhydramine), Claritin (loratadine), and Zyrtec (cetirizine): for allergic reactions and hives.

    You Raising Your Child Michael F. Roizen 2010

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