Nedocromil and exercise-induced asthma: Acute and chronic effects

Shmuel Kivity*, Amir Onn, Yoel Greif, Elizabeth Fireman, Shmuel Pomeranz, Marcel Topilsky

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Nedocromil sodium confers both acute and chronic protective effects in patients with bronchial asthma, the interactions of which are unknown. To examine to what extent and for how long nedocromil sodium prevents exercise-induced asthma when given immediately before exertion compared to chronic administration. Eighteen asthmatic patients were given 4 mg NS at 30 min or 3.5 hours before exertion. We compared the resultant effect with that of the same protocol measured after 2 and 4 weeks of continuous treatment with the drug. Nedocromil sodium decreased exercise-induced asthma similarly at both points when given acutely. Chronic treatment of up to 4 weeks did not improve this protective effect at either interval following the inhalation. Nedocromil sodium most likely reaches its maximal effect on exercise-induced asthma upon the first administration, although treatment for longer than 4 weeks might be required to prove a chronic effect of the drug.

Original languageEnglish
Pages (from-to)92-94
Number of pages3
JournalIsrael Medical Association Journal
Issue number2
StatePublished - 1999


  • Chronic administration
  • Exercise-induced asthma
  • Nedocromil sodium
  • Protective effect


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