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June 5, 1975New England Journal of Medicine

Dosage of Theophylline in Bronchial Asthma

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Authors

KPKenneth M. PiafskyUniversity of TorontoRORichard I. OgilvieGeneral / Preventive / Lipids

Discussion

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Implication

Clinical review demonstrates the therapeutic mechanisms and dosing of theophylline in bronchial asthma, highlighting smooth muscle relaxation mediated by cyclic AMP.

Key Points

  • To review the pharmacological actions, therapeutic indications, and appropriate dosing strategies of theophylline in the management of bronchial asthma and reversible airway obstruction.
  • Reviewed the pharmacological properties, mechanisms of action, and clinical indications of 1,3-dimethylxanthine (theophylline).
  • Evaluated systemic effects including respiratory stimulation, smooth muscle relaxation, cardiac changes, and diuresis.
  • Theophylline promotes smooth muscle relaxation in the bronchi and non-cerebral vasculature, stimulates respiration, increases cardiac inotropy and chronotropy, and induces diuresis.
  • Therapeutic actions in reversible airway obstruction are mediated primarily through the inhibition of phosphodiesterase, resulting in increased levels of intracellular cyclic AMP.

Cite This Study

Piafsky et al. (1975) studied this question.

synapsesocial.com/papers/6a94247b1e998d99dafeec1dhttps://doi.org/10.1056/nejm197506052922305
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Some Aspects of the Biological Role of Adenosine 3',5'-monophosphate (Cyclic AMP)1968 · 970 citations
  2. 2Indirect Plasma-Theophylline Monitoring in Asthmatic Children by Determination of Theophylline Concentration in Saliva1974 · 63 citations
  3. 3Cardiac Arrest in the Critically Ill1971 · 212 citations
  4. 4Double-Blind Trial of Aminophylline in Status Asthmaticus1971 · 66 citations