Biomaterial Database

Oral and topical antihistamines: pharmacologic properties and therapeutic potential in ocular allergic disease. 1998

S D Jaanus

State University of New York, State College of Optometry, New York, USA.

BACKGROUND Allergic eye disease is a common clinical occurrence in individuals who experience local and systemic hypersensitivity reactions. The majority of ocular symptoms involve the conjunctiva and lids, which are exposed to the environment and thereby are sites of interaction between allergens and immunocompetent cells. Signs and symptoms of ocular involvement can manifest as itching, chemosis, tearing, swollen lids, and photophobia. METHODS Histamine is a key preformed mediator released when allergen molecules crosslink to antigen-binding components of adjacent IgE molecules on mast cells or basophil surface. On its release, histamine acts on H1-receptors on a variety of tissues and cells, including blood vessels, smooth muscle, and sensory nerves. RESULTS Drugs classified as H1-receptor antagonists, commonly referred to as the antihistamines, are among the most efficacious and frequently used medications for ocular and systemic allergy symptoms. CONCLUSIONS This review focuses on the pharmacologic actions and side effects of oral first-generation sedating or classic H1-receptor antagonists; the second-generation, relatively nonsedating H1-receptor antagonists; and the topical ocular antihistamine/decongestants and single-entity antihistamine formulations.

UI	MeSH Term	Description	Entries
D009883	Ophthalmic Solutions	Sterile solutions that are intended for instillation into the eye. It does not include solutions for cleaning eyeglasses or CONTACT LENS SOLUTIONS.	Eye Drop,Eyedrop,Eyedrops,Ophthalmic Solution,Eye Drops,Drop, Eye,Drops, Eye,Solution, Ophthalmic,Solutions, Ophthalmic
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D003233	Conjunctivitis, Allergic	Conjunctivitis due to hypersensitivity to various allergens.	Allergic Conjunctivitis,Conjunctivitis, Atopic,Conjunctivitis, Giant Papillary,Conjunctivitis, Vernal,Keratoconjunctivitis, Vernal,Allergic Conjunctivitides,Atopic Conjunctivitides,Atopic Conjunctivitis,Conjunctivitides, Allergic,Conjunctivitides, Atopic,Conjunctivitides, Giant Papillary,Conjunctivitides, Vernal,Giant Papillary Conjunctivitides,Giant Papillary Conjunctivitis,Keratoconjunctivitides, Vernal,Papillary Conjunctivitides, Giant,Papillary Conjunctivitis, Giant,Vernal Conjunctivitides,Vernal Conjunctivitis,Vernal Keratoconjunctivitides,Vernal Keratoconjunctivitis
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
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000284	Administration, Oral	The giving of drugs, chemicals, or other substances by mouth.	Drug Administration, Oral,Administration, Oral Drug,Oral Administration,Oral Drug Administration,Administrations, Oral,Administrations, Oral Drug,Drug Administrations, Oral,Oral Administrations,Oral Drug Administrations
D000287	Administration, Topical	The application of drug preparations to the surfaces of the body, especially the skin (ADMINISTRATION, CUTANEOUS) or mucous membranes. This method of treatment is used to avoid systemic side effects when high doses are required at a localized area or as an alternative systemic administration route, to avoid hepatic processing for example.	Drug Administration, Topical,Administration, Topical Drug,Topical Administration,Topical Drug Administration,Administrations, Topical,Administrations, Topical Drug,Drug Administrations, Topical,Topical Administrations,Topical Drug Administrations
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D012449	Safety	Freedom from exposure to danger and protection from the occurrence or risk of injury or loss. It suggests optimal precautions in the workplace, on the street, in the home, etc., and includes personal safety as well as the safety of property.	Safeties
D016896	Treatment Outcome	Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.	Rehabilitation Outcome,Treatment Effectiveness,Clinical Effectiveness,Clinical Efficacy,Patient-Relevant Outcome,Treatment Efficacy,Effectiveness, Clinical,Effectiveness, Treatment,Efficacy, Clinical,Efficacy, Treatment,Outcome, Patient-Relevant,Outcome, Rehabilitation,Outcome, Treatment,Outcomes, Patient-Relevant,Patient Relevant Outcome,Patient-Relevant Outcomes