H1 antagonists, also called H1 blockers, are a class of medications that block the action of histamine at the H1 receptor, helping to relieve allergic ...
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Cetirizine, A selective Histamine-1 antagonist drug used in allergic rhinitis and chronic urticaria. ; Loratadine, A second generation antihistamine used to ...
H1-blockers are commonly used to treat the symptoms of allergic reactions. They are found in many over-the-counter products for cold, flu, ...
Mar 10, 2024 · First-generation antihistamines with antiemetic properties through histamine H1-receptor blockade have several indications.
A H1 receptor antihistamine used in the treatment of seasonal allergies, and various allergic reactions including sneezing, runny nose, itchy/watery eyes, ...
Sep 18, 2023 · Commonly used H1 antagonists currently available in the United States are cetirizine, levocetirizine, desloratadine, loratadine, and fexofenadine.
Two H1-antagonists, astemizole and terfenadine, have been found to prolong the QTc interval and, rarely, to cause cardiac dysrhythmias after overdose or under ...
An H1 antagonist is a type of medication that competitively inhibits the interaction of histamine with the H1 receptor, thereby blocking the vasodilator ...
Histamine H2-receptor antagonists, also known as H2-blockers, are used to treat duodenal ulcers and prevent their return. They are also used to treat gastric ...