Preemptive analgesic effects of midazolam and diclofenac in rat model

  • Antigona Hasani Department of Anesthesiology and Reanimation, University Clinical Centre of Kosovo
  • Marija Soljakova Department of Anesthesiology and Reanimation, Faculty of Medicine “St. Cyril and Methodius”
  • Muharrem Jakupi Institute of Clinical Pharmacology, Clinical Centre University of Prishtina, Faculty of Medicine
  • Serpil Ustalar-Ozgen Department of Anesthesiology and Reanimation, Acibadem Universitesi
Keywords: midazolam, diclofenac, preemptive analgesia, hot plate test, formalin test

Abstract

The aim of the present study was to investigate the preemptive analgesic effects of intraperitoneally administrated midazolam and diclofenac, before acute and inflammatory induced pain in rat model.

One hundred twenty-eight (n=8 in each group) male Sprague Dawley rats were included in the study. Paw movements in response to thermal stimulation or paw flinching in response to formalin injection were compared after midazolam (0.1, 1, 5 and 10 mg/kg) and diclofenac (10 mg/kg), intraperitoneal administration. Saline was used as a control.

Preemptive analgesic effect was significant in both tests when diclofenac and midazolam was administrated before the pain stimuli (p<0.01 and p<0.001). Intraperitoneal injection of midazolam in doses 5 and 10 mg/kg, increase the response time in hot plate test and decrease the number of flinches in formalin test (p<0.01 vs. p<0.001). ED50 of midazolam (with diclofenac) in hot plate test was 2.02 mg/kg (CI95% =-3.47-5.03 mg); and, 0.9 mg/kg (CI95% =-0.87-4.09 mg) in phase I and 0.7 mg/kg (CI95% = 0.48-6.63 mg) in phase II, in formalin test.

Intraperitoneally administered midazolam and diclofenac had preemptive analgesic effects on acute thermal, and inflammatory induced pain in rats.

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Preemptive analgesic effects of midazolam and diclofenac in rat model
Published
2011-05-20
How to Cite
1.
Hasani A, Soljakova M, Jakupi M, Ustalar-OzgenS. Preemptive analgesic effects of midazolam and diclofenac in rat model. Bosn J of Basic Med Sci [Internet]. 2011May20 [cited 2020Nov.30];11(2):113-8. Available from: https://www.bjbms.org/ojs/index.php/bjbms/article/view/2593
Section
Pharmacology