Peer-reviewed veterinary case report
Topical fipronil-permethrin kills and repels Rhodnius prolixus on dogs
By Ucan-Mézquita, A et al.·Published in Veterinary parasitology·2019·Facultad de Medicina Veterinaria y Zootecnia·View original on PubMed →
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Original publication title: Efficacy of a topical combination of fipronil-permethrin against Rhodnius prolixus on dogs.
- Species:
- dog
Plain-English summary
Ten medium-sized dogs were tested with a new topical treatment containing fipronil and permethrin to see how well it worked against a type of bug called Rhodnius prolixus, which can transmit diseases. Initially, the dogs had no protection and the bugs fed on them, but after applying the treatment, the bugs showed a high level of repellency and died quickly after feeding on the treated dogs. The treatment was effective in killing the bugs and preventing them from feeding, which is important for protecting dogs from diseases like American trypanosomiasis.
People also search for: dog bug treatment · fipronil permethrin for dogs · how to prevent dog trypanosomiasis
Abstract
A controlled clinical trial was carried out to assess the mortality and repellency of a new topical combination of fipronil-permethrin (Effitix® Virbac, Mexico) against Rhodnius prolixus in dogs. Ten medium-size dogs (10-15 kg) with short hair were used. The dogs were exposed to 8 adult triatomines once weekly for 7 weeks. On the control day (D0), the dogs were exposed to the insects without treatment. On D7, the dogs were immediately treated with a spot-on 2.2 ml pipette containing 134 mg of fipronil and 1200 mg permethrin after exposure to the insects. The dose was repeated after 4 weeks following the manufacturer's instructions. Repellency at D0 was, 0 % and the insects had a high blood content. After 12 h post-contact, repellency was 86.3 % and slowly decrease though D21 and D28. On D7, none of the insects survived after 3 h of feeding on the treated dogs. On D14, D35 and D42, all insects died within 12 h post-feeding, whereas no mortality was observed in the control D0 (P < 0.05). The results of this study indicated that administration of the product following the manufacturer's instructions was efficacious at inducing rapid mortality of R. prolixus and therefore could be useful to prevent the transmission of American trypanosomiasis in dogs.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/31765865/