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Does dipyrone have any effect on respiratory function in COPD patients?

S Ezgi Gulmez1, F Cankat Tulunay, Sumru Beder

  • 1Department of Pharmacology and Clinical Pharmacology, Medical School of Ankara University, 06100 Sihhiye, Ankara, Turkey. gulmez@medicine.ankara.edu.tr

Respiratory Medicine
|October 11, 2005
PubMed
Summary

Dipyrone (Novalgin) does not affect respiratory function in healthy individuals or COPD patients. This study found no bronchodilator effects or impairment of spirometric parameters, suggesting safe use in COPD management.

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Area of Science:

  • Pharmacology
  • Respiratory Medicine
  • Clinical Trials

Background:

  • Dipyrone (Novalgin) is known for analgesic, antipyretic, and spasmolytic properties.
  • Previous in vitro studies indicated dipyrone relaxes guinea pig tracheal smooth muscle.

Purpose of the Study:

  • To investigate the in vivo effects of dipyrone on respiratory function in healthy volunteers and COPD patients.
  • To assess potential bronchodilator effects or pulmonary function impairment.

Main Methods:

  • A one-centered, open-label study involving 15 healthy volunteers and 15 stable COPD patients.
  • Spirometry was performed before and at intervals up to 120 minutes after oral administration of dipyrone (20 mg/kg).
  • Data were analyzed using General Linear Model Repeated Measures ANOVA.

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Main Results:

  • No significant differences in spirometric parameters were observed compared to baseline values in either group.
  • Dipyrone demonstrated no bronchodilator effect in COPD patients or healthy volunteers.

Conclusions:

  • Dipyrone does not possess observable bronchodilator effects in COPD patients or healthy individuals.
  • The drug does not impair pulmonary function, indicating it can be safely administered to COPD patients when indicated.