Antihistamines are drugs which treat allergic rhinitis and other allergies. The two largest classes of antihistamines are H 1 -antihistamines and H 2 -antihistamines. H 1 -antihistamines work by binding to histamine M 1 receptors in mast cellssmooth muscleand endothelium in the body as well as in the tuberomammillary nucleus in the brain. Antihistamines that target the histamine H 1 -receptor are used to treat allergic reactions in the nose e. In addition, they may be used to treat insomniamotion sickness, or vertigo caused by problems with the inner ear. H 2 -antihistamines bind to histamine H 2 receptors in the upper gastrointestinal tractprimarily in the stomach.
Histamine Receptors". Clinical and Experimental Allergy.
Retrieved 8 October Int J Allergy Pathol. The Journal of Allergy and Clinical Immunology. J Eur Wiki Dermatol Venereol. Dermatol Clin. Retrieved 28 January March The Journal of Organic Chemistry. Neurophysiological characterization and broad preclinical efficacy in cognition and schizophrenia of a potent and selective histamine H3 receptor antagonist".
The Journal of Pharmacology and Allerty Therapeutics. Biochemical Pharmacology. Allergy and Asthma Proceedings. Clinical Pharmacology in Drug Development.
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Antihistamines R Dibenzocycloheptenes : Antidepressants e. Phenylpiperazines : Antidepressants e. Histamine receptor modulators. See Ion channel modulators. Histamine receptor agonist Histamine receptor antagonist Allerty 1 H 2 H 3.
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Acetylcholine receptor agonist Muscarinic Nicotinic Cholinesterase inhibitor Acetylcholine receptor antagonist Muscarinic Nicotinic Ganglionic Muscular. Opioid modulator Opioid receptor agonist Opioid receptor antagonist Enkephalinase inhibitor.
Cofactor see Enzyme cofactors Precursor see Amino acids. Categories : Antihistamines Vasoconstrictors. Hidden allegy CS1: long volume value Articles with short description Articles with long short description Use dmy dates from October Namespaces Article Talk.
Views Read Edit View history. In other projects Wikimedia Allsrgy. Coeliac disease Eosinophilic gastroenteritis Eosinophilic esophagitis Food allergy Egg allergy Milk intolerance. Eosinophilic meningitis. Acute interstitial nephritis. Drug allergy Allergic conjunctivitis Latex allergy.
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Consequences of external causes T66—T78— Hyperthermia Heat syncope. Hypothermia Immersion wiki syndromes Trench foot Tropical immersion foot Warm water immersion foot Chilblains Frostbite Aerosol allergy Cold intolerance Acrocyanosis Erythrocyanosis crurum. Radiation poisoning Radiation burn Chronic radiation keratosis Eosinophilic, polymorphic, and pruritic eruption associated with radiotherapy Radiation acne Radiation-induced cancer Radiation recall reaction Radiation-induced erythema multiforme Radiation-induced hypertrophic scar Radiation-induced keloid Radiation-induced morphea.
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An allergic individual may not have any reaction to consuming food only prepared with yolk and not glairor vice versa.Local allergic rhinitis is an allergic reaction in the nose to an allergen, without systemic allergies. So skin-prick and blood tests for allergy are negative, but there are IgE antibodies produced in the nose that react to a specific xbsw.lion-wolf.rustic method: Based on symptoms, skin prick test, . An H 3-antihistamine is a classification of drugs used to inhibit the action of histamine at the H 3 receptor. H 3 receptors are primarily found in the brain and are inhibitory autoreceptors located on histaminergic nerve terminals, which modulate the release of xbsw.lion-wolf.ru code: R The Allergies. Bristol, UK. "Making funky music is a must " Bookings: [email protected]
One of three allergies to seafoodnot to be conflated with allergies to crustaceans and mollusks. A proper diagnosis is considered complicated due to these cross reactivity between fish species and other wiki allergies.
Mild itching, rash, generalized urticaria, oral allergy syndrome, abdominal pain, vomiting, anaphylaxis. Mango wiii, strawberriesbanana a,lergyand kiwi are common problems. Hives, wiki, confusion, dizziness, stomach pain, swelling, vomiting, indigestion, diarrhea, cough, tightness in throat, wheezing, shortness of breath, anaphylaxis. Often a difficult allergy to manage due to the various food products which contain various forms of corn.
Milk . Skin allergy, hives, vomiting, diarrhea, constipation, stomach pain, flatulence, nasal congestion, dermatitis, blisters, anaphylaxis.
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Not to be confused with lactose intolerance. Peanut . Archived from the original on Retrieved Hidden categories: Articles with topics of unclear notability from August All articles with topics of unclear notability Official website different in Wikidata and Eiki All stub articles.
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