Protective Effect of Drugs on Histamine-induced Asthma
Overview
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Controlled standardised histamine inhalation tests were carried out in 21 asthmatics to determine the degree of non-specific bronchial hyperreactivity with and without prior treatment with several anti-asthmatic drugs. A significant protective effect was produced by inhaled salbutamol, 200 microgram, ingested salbutamol, 4 mg, inhaled Sch1000, 40 microgram inhaled atropine sulphate, 290 microgram, and ingested choline theophylinate (200 or 400 mg) producing serum theophylline levels over 10 mg/l. Inhaled salbutamol was consistently the most effective and was significantly better than the other drugs. The protective effect between the other four was not significantly different. Drug side-effects occurred only with the ingested drugs. No significant protection was detected after ingested choline theophyllinate producing serum theophylline levels of less than 10 mg/l, inhaled sodium cromoglycate, 20 mg given once or six-hourly for one week, or ingested ascorbic acid, 1 gram.
Cromoglycate and nedocromil: influence on airway reactivity.
Valletta E, Boner A Mediators Inflamm. 1994; 3(7):S15-9.
PMID: 18475597 PMC: 2365598. DOI: 10.1155/S0962935194000694.
Beta2-agonists and bronchial hyperresponsiveness.
Page C, Spina D Clin Rev Allergy Immunol. 2006; 31(2-3):143-62.
PMID: 17085790 DOI: 10.1385/CRIAI:31:2:143.
Anticholinergic agents for chronic asthma in adults.
Westby M, Benson M, Gibson P Cochrane Database Syst Rev. 2004; (3):CD003269.
PMID: 15266477 PMC: 6483359. DOI: 10.1002/14651858.CD003269.pub2.
Keeble J, Moore P Br J Pharmacol. 2002; 137(3):295-310.
PMID: 12237248 PMC: 1573498. DOI: 10.1038/sj.bjp.0704876.
Histamine induced bronchoconstriction and end tidal inspiratory activity in man.
Meessen N, van der Grinten C, Luijendijk S, Folgering H Thorax. 1996; 51(12):1192-8.
PMID: 8994514 PMC: 472762. DOI: 10.1136/thx.51.12.1192.