
1) Actifed 2) Antivert 3) Benadryl 4) Coricidin 5) Cyproheptadine 6) Dimenhydrinate 7) Dimetane 8) Dimetapp 9) Diphenhydramine 10) Dramamine 11) Meclizine 12) Methapyrilene 13) Periactin 14) Phenergan 15) Pheniramine 16) Phenyltoloxamine 17) Promethazine 18) Pyrilamine
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1) Allergy drug 2) Medicament 3) Medication 4) Medicinal drug 5) Medicine 6) Winter dosage
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a drug that counteracts the action of histamine. The antihistamines are of two types. The conventional ones, as those used in allergies, block the H1 histamine receptors, whereas the others block the H2 receptors. Called also antihistaminic.
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any of a group of synthetic drugs that selectively counteract the pharmacological effects of histamine (q.v.), following its release from certain ... [9 related articles]
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http://www.britannica.com/eb/a-z/a/83

A type of drug that blocks the action of histamines, which can cause fever, itching, sneezing, a runny nose, and watery eyes. Antihistamines are used to prevent fevers in patients receiving blood transfusions and to treat allergies, coughs, and colds.
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Any of group of substances that block the effects of histamine, a chemical released during allergic reactions (see allergy). Antihistamines are used to relieve the symptoms of hay fever (allergic rhinitis) and hives (urticaria) and other rashes. They are sometimes used in cough and cold remedies bec...
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http://www.daviddarling.info/encyclopedia/A/antihistamine.html

<pharmacology> A drug that counteracts the action of histamine. The antihistamines are of two types. The conventional ones, as those used in allergies, block the H1 histamine receptors, whereas the others block the H2 receptors. ... Synonym: antihistaminic. ... (18 Nov 1997) ...
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http://www.encyclo.co.uk/local/20973

(an″te-) (an″ti-his´tә-mēn) a drug that counteracts the effects of histamine, a normal body chemical that among its actions is believed to cause the symptoms of persons who are hypersensitive to various allergens. While the term antihistamine can broadly include any agent that blo...
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a drug that blocks the action of histamine, a chemical messenger in the body. Antihistamines are used to prevent or alleviate allergic reactions and to reduce stomach acid production.
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http://www.encyclo.co.uk/local/22225

Substance that opposes the action of histamine, an important mediator of allergic reactions and inflammation.
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Antihistamine medicine counteracts the action of histamine (a chemical released during an allergic reaction). For example loratadine, hydroxyzine.
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A commonly used medication that releives symptoms of sneezing, itching, runny nose and ongestion by blocking histamine receptors. Although most antihistamines are considered safe during pregnancy, you should always contact your healthcare provider before taking any medication.
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An exogenous agent that inhibits the release of histamine, the amino acid derivative that stimulates vasodilation and permeability under many circumstances, particularly tissue irritation. The most common type of antihistamine, the H1 receptor antagonist, produces many moderate side effects, and the H2 receptor antagonist cimetidine is even more pr...
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http://www.swsbm.com/ManualsMM/MedHerbGloss2.txt

[
n] - a medicine used to treat allergies and hypersensitive reactions and colds
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http://www.webdictionary.co.uk/definition.php?query=antihistamine

a drug that relieves an allergic reaction by stopping the effects of histamine, the substance responsible for the negative symptoms associated with the reaction
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https://www.encyclo.co.uk/local/20875
noun a medicine used to treat allergies and hypersensitive reactions and colds; works by counteracting the effects of histamine on a receptor site
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https://www.encyclo.co.uk/local/20974

Any substance that counteracts the effects of histamine. Antihistamines may occur naturally or they may be synthesized. H
1 antihistamines are used to relieve allergies, alleviating symptoms such as runny nose, itching, swelling, or asthma. H
2 antihistamines suppress acid production by the stomach, and a...
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https://www.encyclo.co.uk/local/21221

any of certain compounds or medicines that neutralize or inhibit the effect of histamine in the body, used chiefly in the treatment of allergic disorders and colds.
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https://www.infoplease.com/dictionary/antihistamine
No exact match found.