The purpose of the research is to study the effectiveness of «Neoterica Protecto 12» product as polymer tape to prevent myiasis of dogs andcats. Materials and methods. In course of the experiment, spontaneously infected dogs and cats of different ages and breeds were used. The animals were not treated with anti-parasitic drugs for the previous 30 days; they had not been wearing insecticide collars for three months. The diagnosis was made comprehensively taking into account the epizootological data, clinical features and on the basis of careful examination and detection of ectoparasites and their eggs on the skin-and-coat of animals. The intensity of the invasion of animals was estimated by visual rating of insects on the animal's body parts (abdomen, head, lumbar region, and edge bone, inguinal and perineal zone) with a size of 10 × 10 cm. Results and discussion. The high therapeutic effectiveness of the product was found to be 100% when the animals were infected with Ctenocephalides canis, C. felis, Felicola subrostratus, Trichodectes canis and Linognathus setosus ectoparasites. No animal infected with ectoparasites was found within 28 days of applying the collar. No behavior changes and characteristic symptoms were found when observing the animals; general condition of the animals did not deteriorate. Clinical examination showed no evidence of itching; the restoration of skin and coat where scratches and alopecia were earlier noted. The re-infection of dogs and cats with ectoparasites during the following 6 months is hardly in evidence.