Biomaterial Database

Double-blind trials of clemastine ('Tavegil') in allergic rhinitis. 1975

G Todd, and P Hopkins, and W P Maclay

Two double-blind randomised trials are reported comparing the effectiveness of the antihistamines, clemastine and chlorpheniramine in comparable doses, in relieving the symptoms of allergic rhinitis. In the first trial, treating 58 adults seen in a general practice, both drugs were prescribed in tablet form; l mg. clemastine b.d. and 4 mg. chlorpheniramine b.d. The second trial was carried out in 42 patients attending a children's E.N.T. out-patient department and the drugs were prescribed as clemastine elixir (0.5 mg. b.d.) or as chlorpheniramine syrup (2 mg. b.d.). Both drugs were effective in providing symptomatic relief in a significant number of patients, and the overall efficacy of clemastine was marginally better than that of chlorpheniramine, especially in the second trial in children. Side-effects were minimal and drowsiness was not a problem.

UI	MeSH Term	Description	Entries
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D011759	Pyrrolidines	Compounds also known as tetrahydropyridines with general molecular formula (CH2)4NH.	Tetrahydropyridine,Tetrahydropyridines
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D002675	Child, Preschool	A child between the ages of 2 and 5.	Children, Preschool,Preschool Child,Preschool Children
D002744	Chlorpheniramine	A histamine H1 antagonist used in allergic reactions, hay fever, rhinitis, urticaria, and asthma. It has also been used in veterinary applications. One of the most widely used of the classical antihistaminics, it generally causes less drowsiness and sedation than PROMETHAZINE.	Chlorphenamine,Chlorprophenpyridamine,Aller-Chlor,Antihistaminico Llorens,Chlo-Amine,Chlor-100,Chlor-Trimeton,Chlor-Tripolon,Chlorpheniramine Maleate,Chlorpheniramine Tannate,Chlorpro,Chlorspan 12,Chlortab-4,Cloro-Trimeton,Efidac 24,Kloromin,Piriton,Teldrin,Maleate, Chlorpheniramine,Tannate, Chlorpheniramine
D002986	Clinical Trials as Topic	Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries.	Clinical Trial as Topic
D004341	Drug Evaluation	Any process by which toxicity, metabolism, absorption, elimination, preferred route of administration, safe dosage range, etc., for a drug or group of drugs is determined through clinical assessment in humans or veterinary animals.	Evaluation Studies, Drug,Drug Evaluation Studies,Drug Evaluation Study,Drug Evaluations,Evaluation Study, Drug,Evaluation, Drug,Evaluations, Drug,Studies, Drug Evaluation,Study, Drug Evaluation
D006255	Rhinitis, Allergic, Seasonal	Allergic rhinitis that occurs at the same time every year. It is characterized by acute CONJUNCTIVITIS with lacrimation and ITCHING, and regarded as an allergic condition triggered by specific ALLERGENS.	Hay Fever,Pollen Allergy,Pollinosis,Seasonal Allergic Rhinitis,Hayfever,Allergic Rhinitides, Seasonal,Allergic Rhinitis, Seasonal,Allergies, Pollen,Allergy, Pollen,Fever, Hay,Pollen Allergies,Pollinoses,Rhinitides, Seasonal Allergic,Rhinitis, Seasonal Allergic,Seasonal Allergic Rhinitides
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