What is antihistamines?

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Antihistamines

Antihistamines are a type of medicine that are often used to treat allergic health conditions that commonly include:

Antihistamine

Antihistamines are used to relieve or prevent the symptoms of hay fever and other types of allergy. They work by preventing the effects of a substance called histamine, which is produced by the body. Histamine can cause itching, sneezing, runny nose, and watery eyes. Also, in some persons histamine can close up the bronchial tubes (air passages of the lungs) and make breathing difficult.

Antihistamine

Treats symptoms caused by hay fever, allergies, or the common cold. May be used as a nighttime sleep aid. Belongs to a class of drugs called antihistamines.

Livostin

LIVOSTIN 0.05% (levocabastine hydrochloride ophthalmic suspension) is a selective histamine H1-receptor antagonist for topical ophthalmic use. Each mL contains 0.54 mg levocabastine hydrochloride equivalent to 0.5 mg levocabastine, 0.15 mg benzalkonium chloride, propylene glycol, polysorbate 80, dibasic sodium phosphate, anhydrous, monobasic sodium phosphate, monohydrate, disodium edetate, hydroxypropyl methylcellulose, and purified water. It has a pH of 6.0 to 8.0.

Histamine antagonist - Wikipedia, the free encyclopedia

Antihistamines suppress the histamine-induced wheal (swelling) and vasodilation (flare) response by blocking the binding of histamine to its receptors on ...

Antihistamines: Understanding Your OTC Options -- familydoctor.org

Learn how to safely take over-the-counter antihistamines.

Antihistamine Types, Side Effects, Interactions, and More

Many antihistamine drugs are available without a prescription. Examples include the first-generation antihistamines such as brompheniramine (Dimetapp, ...

Antihistamines definition - Medical Dictionary definitions of ...

Mar 12, 2011 ... Antihistamines: Drugs that combat the histamine released during an allergic reaction by blocking the action of the histamine on the tissue. ...

Antihistamines, Decongestants, and Cold Remedies

Antihistamine drugs block the action of histamine, therefore reducing these symptoms. For the best result, antihistamines should be taken before allergic ...

Antihistamines - What Are Antihistamines

Jan 8, 2010 ... You can't stop sneezing, but don't know what medication to take? You may need an antihistamine. Find out all you need to know about ...