The study of the dose-dependent antiexudative effect of a new anti-inflammatory nasal spray

Abstract

It is possible to assume that intranasal forms of drugs with the anti-inflammatory effect (AIE) can be effective for the pathogenic therapy of acute rhinosinusitis (ARS) to relieve nasal congestion.Aim. To determine AIE of Enisamium iodide (EI), assess the dose dependence of the effect, and substantiate the choice of the concentration for the active substance of EI in the form of a nasal spray for external use.Materials and methods. Enisamium iodide nasal spray – “Amizon” manufactured by JSC Farmak (Ukraine) was used in different concentrations extracutaneously. As a reference drug Ibuprofen – “Nurofen”, film-coated tablets, 200 mg, was used intragastrically in the dose of 48 mg/kg. The primary screening for the study of EI antiexudative action in three concentrations was conducted on the carrageenan-induced acute inflammatory model in rats. The anti-inflammatory activity (AIA) of EI in the concentrations of 5, 10 and 20 mg/ml was assessed in three hours compared to Ibuprofen. Results. EI in all studied concentrations had a statistically significant anti-inflammatory activity of various degrees with a non-linear character in the route of administration studied and the concentration range selected. Therefore, the choice of the most optimal concentration of EI (nasal spray) was on the basis of the comparative analysis of AIA of the drug test samples studied. The most pronounced AIA (35.3 %) was in the EI concentration of 10 mg/ml. This concentration is recommended for further preclinical studies. Conclusions. The study of AIA of Enisanium iodide (nasal spray) in the range of concentrations of 5, 10 and 20 mg/ml has shown the “activity-concentration” non-linear dependence. The most pronounced AIA is in the EI concentration of 10 mg/ml. Enisamium iodide (nasal spray) is a promising drug for further preclinical studies.