ACUTE TOXICITY STUDY BASED ON TOLTRAZURIL, TINIDAZOLE AND LEVAMISOLA

Abstract

As a result of the studies, it was found that the proposed drug based on toltrazuril, tinidazole and levamisole hydrochloride according to the average lethal oral dose in accordance with GOST 12.1.007–76 belongs to the fourth hazard class - low-hazard substances. To assess the acute toxicity of the drug, experimental and control groups of whites were formed. Wistar rats weighing 190.2±5.92 grams. To study the acute toxicity of the drug based on toltrazuril, tinidazole and levamisole hydrochloride, a suspension was prepared using the Polysorbate 80 emulsifier. The prepared suspension in different dosages was administered through an intragastric tube to experimental animals and an equal volume of physiological saline was administered to the control group of white rats. With the introduction of a drug based on toltrazuril, tinidazole and levamisole hydrochloride at a dose of 3745 mg/kg, the death of two rats was recorded, which is 20% of the experimental group No. 5. With the introduction of the drug at a dose of 5350 mg/kg, 5 dead animals or 50% of experimental group No. 8 were registered, and with the introduction of 6420 mg/kg - 10 dead laboratory animals, i.e. all animals of the experimental group No. 10. When registering the body weight of white rats of the experimental and control groups, no statistically significant differences were found in the indicators for the entire observation period. At the same time, it should be noted that in the groups of experimental laboratory animals in which the drug was tested at a dose of 3745 mg/kg to 5885 mg/kg, lower values of body weight gain were established in comparison with the control. The minimum tolerated dose was found to be 3210.0 mg/kg, LD16 - 3679.7 mg/kg, LD50 - 5029.0 mg/kg, LD84 - 6121.5 mg/kg, LD100 - 6420.0 mg/kg and SLD50 - ±406. The data obtained allow us to proceed to the study of subchronic toxicity and irritant action of the developed drug.