Synthesis and Clinical Examination of Novel Formulations of Ivermectin, Albendazole and Niclosamide for the Treatment of Equine Gastrointestinal Helminthoses
Background: This study aimed to develop new complex preparations of ivermectin, niclosamide and albendazole based on solid-phase mechanochemical technology, and to evaluate their efficacy against equine nematodosis and cestodosis.
Methods: Novel formulation of antiparasitic paste were prepared using joint mechanochemical treatment of ivermectin (0.2 mg/kg bodyweight; BW), niclosamide (10 mg/kg BW) and albendazole (3, 5, 10 mg/kg BW) substances with polyvinylpyrrolidone and arabinogalactan. For the evaluation of activity of different doses of formulations against gastrointestinal tract helminths a total of 151 adult horses of the Novoaltai breed weighing 450–500 kg naturally infected with strongyles (>150 egg per gram of faeces, EPG), Parascaris spp. (>20 EPG) and Anoplocephala spp. (>10 EPG) were selected. Antiparasitic pastes were orally fed to the horses and faecal egg count reduction counts were compared prior to and 14 days after the treatment.
Results: Pastes with mechanically modified ivermectin showed 91.4–100% efficacy against strongyles and Parascaris. Pastes with modified albendazole and niclosamide were also effective against Anoplocephala in all tested dosages i.e. 78.6–100%. In particular, treatment with two formulations containing i) 0.2 mg ivermectin, 10 mg albendazole, 10 mg niclosamide, and ii) 0.2 mg ivermectin, 3 mg albendazole showed 100% efficacy against strongyles, Parascaris and Anoplocephala.
Conclusion: Solid-phase mechanochemical technology could be applied in equine anthelminthics production. It is suggested that future studies focus on plasma concentration-time profile of these highly effective pastes.
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|Issue||Vol 18 No 1 (2023)|
|Albendazole Helminths Horses Ivermectin Mechanochemistry Niclosamide|
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