Drug Res (Stuttg) 2020; 70(09): 424-428
DOI: 10.1055/a-1217-6777
Original Article

The Antinociceptive Activities of Certain NSAIDS Combinations in Murine Orofacial Test

Hugo F. Miranda
1   Neuroscience Department, Faculty of Medicine, Universidad de Chile, Santiago, Chile
,
Viviana Noriega
2   Cardiovascular Department, Clinical Hospital, Universidad de Chile, Santiago, Chile
,
Fernando Sierralta
3   Pharmacology Program, ICBM, Faculty of Medicine, Universidad de Chile, Santiago, Chile
,
Ramón Sotomayor-Zárate
4   Neurochemistry and Neuropharmacology Laboratory, Institute of Physiology, Faculty of Sciences, Universidad de Valparaíso, Valparaíso, Chile
,
Juan Carlos Prieto
2   Cardiovascular Department, Clinical Hospital, Universidad de Chile, Santiago, Chile
3   Pharmacology Program, ICBM, Faculty of Medicine, Universidad de Chile, Santiago, Chile
› Author Affiliations

Abstract

Pain models are mostly in rodents and between them formalin orofacial test allow discrimination among antinociception and anti-inflammation. This assay use a formalin solution injected into the upper right lip of each mouse which produces two periods of pain separated by an inactive period. The aims of the present study were to evaluate, by means of the isobolographic analysis, the antinociception and anti-inflammatory activities of the following NSAIDs: dexketoprofen, diclofenac, piroxicam and metamizole in an orofacial. The NSAIDs administered intraperitoneally produced a dose-dependent activity with the following order of potency of the rubbing behavior, in phase I: diclofenac>dexketoprofen>piroxicam>metamizole and in the phase II: metamizole>diclofenac>piroxicam>dexketoprofen. The coadministration of NSAIDs resulted in a synergistic interaction, which according to the value of the potency of the combination (II) presents the following range: dexketoprofen plus metamizole>dexketoprofen plus diclofenac>dexketoprofen plus piroxicam, in phase I and dexketoprofen plus metamizole>dexketoprofen plus piroxicam>dexketoprofen plus diclofenac, on the phase II. Data obtained in this work corroborate that NSAIDs alone or in combination inducing activities by additional mechanism of action supplementary to inhibition of COXs. This fact represent a novel approach that could be used as multimodal management of orofacial pain, since with this treatment strategies, by the reduction of doses, can help to diminish side effects of other dugs such opioids.



Publication History

Received: 27 May 2020

Accepted: 06 July 2020

Article published online:
24 July 2020

© Georg Thieme Verlag KG
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