Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1990-9-20
pubmed:abstractText
The widespread popularity of methylxanthine derivatives should be reassessed in light of current evidence. These drugs are relatively weak bronchodilators, respiratory muscle stimulants and inotropic agents and adverse effects, sometimes life threatening, occur fairly frequently. In contrast, beta-2 adrenergic and anticholinergic bronchodilator aerosols used in asthma or chronic obstructive lung disease, and the prophylactic anti-inflammatory aerosols of corticosteroids and cromolyn provide a spectrum of therapeutic choices which address both the inflammatory and bronchoconstrictor components of acute and chronic airflow limitation. Aerosol bronchodilators, in general, are more potent, are virtually free of important side effects, and do not require costly serum level monitoring. Adrenoceptor agonists, together with inhaled steroids, should be considered first-line drugs of choice in managing patients with reversible airflow obstruction associated with asthma or COPD, while methylxanthines should be relegated to the position of third or fourth line drugs, if they are to be used at all. If they are, they should be used with great caution and close patient supervision and, even then, only if benefit, over and above the aerosol bronchodilators and inhaled anti-inflammatory agents can be demonstrated objectively.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0341-2040
pubmed:author
pubmed:issnType
Print
pubmed:volume
168 Suppl
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
634-41
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Management of asthma and chronic airflow limitation: are methylxanthines obsolete?
pubmed:affiliation
St. Joseph's Hospital, Firestone Regional Chest/Allergy Unit, Hamilton, Ontario, Canada.
pubmed:publicationType
Journal Article, Comparative Study, Review