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Dictionary » Histamine H1 Antagonists

Histamine H1 Antagonists

Introduction: Histamine H1 Antagonists

Description of Histamine H1 Antagonists

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.
Source: MeSH 2007

Histamine H1 Antagonists: Related Topics

These medical condition or symptom topics may be relevant to medical information for Histamine H1 Antagonists:

Terms associated with Histamine H1 Antagonists:

Terms Similar to Histamine H1 Antagonists:

Source - MeSH 2007

Related Topics

Source - MeSH 2007

More specific terms for Histamine H1 Antagonists:

Source - MeSH 2007

Broader terms for Histamine H1 Antagonists

Source - MeSH 2007

Hierarchical classifications of Histamine H1 Antagonists

The following list attempts to classify Histamine H1 Antagonists into categories where each line is subset of the next.

MeSH 2007 Hierarchy:

MeSH 2007 Hierarchy

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