Parasitic diseases continue to account for a significant proportion of overall morbidity in many parts of the world despite improved living conditions and increased awareness of health issues. The creation of innovative veterinary antiparasitic agents is a promising area of modern veterinary pharmacy. The pathogens Dipylidium caninum, Ancylostoma caninum, Toxocara canis, Toxocaris leonina were identified in the study of stray dogs (n=12). Eggs of Dipylidium caninum, Toxocara mystax, and Toxocaris leonina were found during cats' examination (n=15). Both mono and mixed invasions have been diagnosed in animals. We established that the floor and inventory were contaminated with exogenous forms of helminths at an extent of 100% after keeping animals in the shelter's enclosures. An innovative antiparasitic agent was used to treat animals. One tablet (0.5 g) contains the following active ingredients such as pyrantel pamoate (150±0.5 mg), praziquantel (50±0.5 mg), and auxiliary substances (lactose, microcrystalline cellulose, calcium stearate, sodium chloride, food flavoring "meat", povidone K-30 and potato starch). We estimated high antiparasitic agents' extensive efficiency (100%) at mono and mixed invasions in dogs and cats.