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Methylxanthines for prolonged non-specific cough in children (Review)

Chang, Anne B., Halstead, Ria A. P. and Petsky, Helen L. (2005). Methylxanthines for prolonged non-specific cough in children (Review). Cochrane Database of Systematic Reviews,2005(2 - Article No. CD005310).

Document type: Journal Article
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Title Methylxanthines for prolonged non-specific cough in children (Review)
Author Chang, Anne B.
Halstead, Ria A. P.
Petsky, Helen L.
Journal Name Cochrane Database of Systematic Reviews
Publication Date 2005
Volume Number 2005
Issue Number 2 - Article No. CD005310
eISSN 1469-493X
Total Pages 14
Place of Publication United Kingdom
Publisher John Wiley & Sons Ltd.
Language English
HERDC Category C1 - Journal Article (DEST)
Abstract Background
Non-specific cough is defined as non-productive cough in the absence of identifiable respiratory disease or known aetiology. It is commonly seen in paediatric practice. These children are treated with a variety of therapies including a variety of asthma medications. Methylxanthines, the main medication used for paediatric asthma for many decades in Western countries, is still widely used in non-Western countries. Also, methylxanthines have other pharmacological properties and their bronchodilator effect is only modest.

To evaluate the efficacy of methylxanthines in treating children with non-specific cough.

Search methods

The Cochrane Register of Controlled Trials (CENTRAL), the Cochrane Airways Group Specialised Register, MEDLINE and EMBASE databases were searched by the Cochrane Airways Group. The latest searches were performed in October 2010.

Selection criteria
All randomised controlled trials comparing methylxanthines with a placebo medication in treating children with non-specific cough.

Data collection and analysis

Results of searches were reviewed against pre-determined criteria for inclusion. No eligible trials were identified and thus no data were available for analysis. Four small non-randomised controlled trials were reported.

Main results
No randomised controlled trials that examined the efficacy of methylxanthines in the management of prolonged non-specific cough in children were found. In the non randomised trials above, a significant effect was seen within 2-14 days of therapy.

Authors' conclusions

There is currently an absence of reliable evidence to support the routine use of methylxanthines for symptomatic control of non-specific cough in children. If methylxanthines were to be trialed in children with prolonged non-specific cough, cohort data (thus limited) suggest a clinical response (subjective cough severity) would be seen within two to five days (and certainly within 14 days) of therapy. However methylxanthine use has to be balanced against the well known risk of toxicity and its low therapeutic range in children. Further research examining the efficacy of this intervention is needed.
Keywords Australia
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