The dermal toxicity of an antiseptic preparation as determined by the different research methods

The article presents the results of the study of acute and subacute skin toxicity of an antiseptic ointment based on ichthyol. The research was conducted using the classic method and according to the methodology of the Organization for Economic Cooperation and Development (OECD No. 410). The study of the dermal toxicity of the product under study by the classic method showed that long-term use of the drug in animals of the experimental groups did not cause significant changes in the concentration of hemoglobin, the number of erythrocytes, leukocytes, the value of hematocrit, the average concentration of hemoglobin in the erythrocyte (MCHC), the average volume of the erythrocyte (MCV), the average content of hemoglobin in the erythrocyte (MCH) and the number of platelets, the content of total protein, the level of creatinine and the activity of AST. The study of skin toxicity of the product under study according to the OECD method No. 410 showed that the number of erythrocytes increased in the animals of the I, II, and III research groups, respectively, by – 10.7 (Р < 0.01), 6.0 (Р < 0.05), and 7.5 % (Р < 0.05). At the same time, the concentration of hemoglobin did not change. In addition, in the animals of the I and II experimental groups, a tendency towards an increase in hematocrit was established. In the animals of the I, II, and III experimental groups, changes in the erythrocyte index were noted; in particular, a probable decrease in the average content of hemoglobin in the erythrocyte (MCH) was established, respectively by – 5.2 (P < 0.05), 5.2 (P < 0.01) and 7.1 % (P < 0.001) of the average erythrocyte volume (MCV), respectively by – 6.9 (P < 0.01), 5.5 % (P < 0.01) and 7.2 % (P < 0.001). The use of the drug in a therapeutic dose caused a slight decrease in the level of total protein, urea, and creatinine against a slight increase in the activity of AST and ALT. At the same time, the animals of the II and III research groups, which received the drug under investigation at five times and ten times the therapeutic dose, noted an increase in the level of urea, respectively, by – 3.3 and 8.5 %, and creatinine, respectively, by – 1.9 and 8.0 % (P < 0.05), the activity of AST, respectively, by – 2.3 and 3.2 %, and ALT, respectively, by – 10.4 (P < 0.05) and 13.4 % (Р < 0.05) compared to the values of animals of the control group.