| D006634 |
Histamine H1 Antagonists |
Drugs that selectively bind to but do not activate histamine H1 receptors, thereby blocking the actions of endogenous histamine. Included here are the classical antihistaminics that antagonize or prevent the action of histamine mainly in immediate hypersensitivity. They act in the bronchi, capillaries, and some other smooth muscles, and are used to prevent or allay motion sickness, seasonal rhinitis, and allergic dermatitis and to induce somnolence. The effects of blocking central nervous system H1 receptors are not as well understood. |
Antihistamines, Classical,Antihistaminics, Classical,Antihistaminics, H1,Histamine H1 Antagonist,Histamine H1 Receptor Antagonist,Histamine H1 Receptor Antagonists,Histamine H1 Receptor Blockaders,Antagonists, Histamine H1,Antagonists, Histamine H1 Receptor,Antihistamines, Sedating,Blockaders, Histamine H1 Receptor,First Generation H1 Antagonists,H1 Receptor Blockaders,Histamine H1 Blockers,Receptor Blockaders, H1,Antagonist, Histamine H1,Classical Antihistamines,Classical Antihistaminics,H1 Antagonist, Histamine,H1 Antagonists, Histamine,H1 Antihistaminics,Sedating Antihistamines |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D001559 |
Benzhydryl Compounds |
Compounds which contain the methyl radical substituted with two benzene rings. Permitted are any substituents, but ring fusion to any of the benzene rings is not allowed. |
Diphenylmethyl Compounds,Compounds, Benzhydryl,Compounds, Diphenylmethyl |
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| D016171 |
Torsades de Pointes |
A malignant form of polymorphic ventricular tachycardia that is characterized by HEART RATE between 200 and 250 beats per minute, and QRS complexes with changing amplitude and twisting of the points. The term also describes the syndrome of tachycardia with prolonged ventricular repolarization, long QT intervals exceeding 500 milliseconds or BRADYCARDIA. Torsades de pointes may be self-limited or may progress to VENTRICULAR FIBRILLATION. |
Torsade de Pointes,Pointes, Torsade de,Pointes, Torsades de,de Pointes, Torsade,de Pointes, Torsades |
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| D016593 |
Terfenadine |
A selective histamine H1-receptor antagonist devoid of central nervous system depressant activity. The drug was used for ALLERGY but withdrawn due to causing LONG QT SYNDROME. |
Balkis Saft Spezial,Cyater,Hisfedin,RMI-9918,Rapidal,Seldane,Teldane,Terfedura,Terfemundin,Terfenadin AL,Terfenadin Heumann,Terfenadin Stada,Terfenadin Von Ct,Terfenadin-Ratiopharm,Terfenidine,Ternadin,Triludan,alpha-(4-(1,1-Dimethylethyl)phenyl)-4-(hydroxydiphenylmethyl)-1-piperdinebutanol,RMI 9918,RMI9918,Terfenadin Ratiopharm |
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