Basic and Clinical Pharmacology and Toxicology, vol.135, no.2, pp.173-179, 2024 (SCI-Expanded)
Introduction: To investigate the in vitro effect of diclofenac on tubal smooth muscle as an alternative to hyoscine-N-butyl bromide, which is used for premedication before hysterosalpingography (HSG). Material and Methods: Fallopian tubes were retrieved from seven healthy women after bilateral tubal ligation and in vitro contractility and histological studies were conducted using tissue bath and immunohistochemistry. Results: Diclofenac sodium and hyoscine-N-butyl bromide did not significantly change the basal mean tension; however, they decreased the contractions induced by potassium chloride (KCl). The relaxant effect of diclofenac sodium and hyoscine-N-butyl bromide was not statistically significantly different. The presence of cyclooxygenase (COX)-2 enzyme in the fallopian tube was demonstrated by immunohistochemical studies. Conclusions: The in vitro relaxant effect of diclofenac sodium on the fallopian tube is similar to hyoscine-N-butyl bromide. Diclofenac may have the potential to be used as an alternative to hyoscine-N-butyl bromide in premedication in HSG.