Treatment of dog thelaziosis caused by Thelazia callipaeda (Spirurida, Thelaziidae) using a topical formulation of imidacloprid 10% and moxidectin 2.5%
Abstract
Canine thelaziosis caused by Thelazia callipaeda infects dogs, cats, foxes, rabbits, and humans resulting in conjunctivitis, pain and excessive lacrimation. T. callipaeda live in the eyes under the nictitating membrane and females release first stage larvae which are ingested by flies which act as intermediate hosts. Control of canine thelaziosis is currently based on the removal of nematodes directly from the eyes of affected dogs or on the local instillation of antiparasitic drugs. With the aim of evaluating the efficacy against T. callipaeda of an association of imidacloprid 10% and moxidectin 2.5% by spot-on formulation administered via dermal application, three groups of naturally infected animals were selected: i.e. group A (21 dogs) received a single dose of imidacloprid 10% and moxidectin 2.5% by spot-on; group B (21 dogs) received a single dose of imidacloprid 10% by spot-on and group C (20 dogs) were left untreated. The efficacy of treatments was established by eye inspection and parasite viability and vitality after 1, 5 and 9 days after animal treatments (groups A and B) and after 9 days only in untreated animals (group C). Imidacloprid 10% and moxidectin 2.5% in spot-on formulation showed to be effective with regards the control of dog thelaziosis within 5 (90.47%) to 9 (95.23%) days after treatment. Only one dog from group A presented nematodes after treatment. The presence of parasites in the eyes of dogs from groups B (imidacloprid 10%) and C confirm that the anthelmintic efficacy against T. callipaeda in animal from group A (imidacloprid 10% and moxidectin 2.5%) was most likely attributable to moxidectin 2.5%. The spot-on formulation containing imidacloprid 10% and moxidectin 2.5% is very easy to apply and helps overcome problems linked to the mechanical removal of parasites or to the restraining of the animals for the local instillation of drugs in the eyes.
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Imidacloprid 10% and moxidectin 2.5% in spot-on formulation is effective for the control of dog thelaziosis within five to nine days after treatment, with efficacy of 90.47% to 95.23%.
“Imidacloprid 10% and moxidectin 2.5% in spot-on formulation was also effective for the control of dog thelaziosis within five (90.47%) to nine (95.23%) days after treatment [120]”
From Vector-borne helminths of dogs and humans in Europe (2013) · cites this paper as [120]
The formulation containing moxidectin and imidacloprid has the advantage of easy-to-apply dermal spot-on administration in parasitized dogs.
“the formulation containing moxidectin and imidacloprid has the advantage of the easy-to-apply dermal spot-on administration in parasitized dogs [170]”
From Pet roundworms and hookworms: A continuing need for global worming (2012) · cites this paper as [170]
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Self-citation
- Authors
- Bianciardi, P., & Otranto, D.
- Affiliations
- University of Bari Aldo Moro (IT)
- Corresponding author
- Bianciardi, P.
- ORCID
- Otranto, D.
- Venue
- Veterinary Parasitology
- Publisher
- Elsevier BV
- Published
- 2005-04
- Volume
- 129
- Issue
- 1-2
- Pages
- 89-93
- ISSN
- 0304-4017 (ISSN-L)
- OpenAlex
- W1998349790
- Cited by
- 55
- References
- 24
- Citations by year
- 2026: 2 · 2025: 3 · 2024: 2 · 2022: 5 · 2021: 6 · 2020: 3 · 2019: 4 · 2018: 1 · 2017: 1 · 2016: 5 · 2015: 2 · 2014: 2 · 2013: 4 · 2012: 6
- FWCI
- 2.74
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Veterinary Parasitology (publishedVersion)
- PubMed (publishedVersion)
- CINECA IRIS Institutional Research Information System (University of Bari Aldo Moro) (submittedVersion)
- Topics
- Health Sciences › Veterinary › Small Animals › Helminth infection and control
- Health Sciences › Medicine › Infectious Diseases › Parasitic Diseases Research and Treatment
- Health Sciences › Medicine › Infectious Diseases › Dermatological diseases and infestations
- Keywords
- Thelazia callipaeda, imidacloprid, moxidectin, spot-on formulation, treatment efficacy, dogs, conjunctivitis, nictitating membrane, anthelmintic combination therapy
- MeSH terms
- Neonicotinoids, Administration, Topical, Animals, Anthelmintics, Dog Diseases, Dogs, Drug Combinations, Female, Imidazoles, Male, Nitro Compounds, Random Allocation, Thelazioidea, Eye Infections, Parasitic, Treatment Outcome, Spirurida Infections, Macrolides
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