Efficacy of selamectin against biting lice on dogs and cats

Issues involving parasite prevention and treatment. Questions, answers, theories, and evidence.
Do pets really need medication every month for worms, fleas and ticks?

Efficacy of selamectin against biting lice on dogs and cats

Postby malernee » Thu Feb 24, 2005 6:58 am

http://www.ingentaconnect.com/content/b ... 8/art00002
Efficacy of selamectin against biting lice on dogs and cats
Authors: Shanks D.H.; Gautier P.; McTier T.L.; Evans N.A.; Pengo G.

Source: The Veterinary Record, 22 February 2003, vol. 152, no. 8, pp. 234-237(4)

Publisher: BVA Publications

< previous article | next article > View Table of Contents


The efficacy of selamectin was evaluated against naturally acquired Trichodectes canis infestations on dogs and against Felicola subrostratus infestations on cats. Twenty dogs and 18 cats were randomly allocated to treatment with either a placebo or selamectin (6 mg/kg), administered topically once only on day 0. The treatment had no adverse effects in either the dogs or the cats. Efficacy was assessed by counting the live lice (adults and nymphs) on each animal by using a coat-parting technique on days -3, 7, 14, 21, 28, 35 and 42 for the dogs, and on days -1, 7, 21, 35 and 42 for the cats. On day 43, the number of live lice on each dog was also assessed by using a whole-body combing technique. Selamectin was 100 per cent effective in killing biting lice on the dogs and cats throughout the period of assessment; the louse counts on the treated dogs and cats were significantly lower than the pretreatment counts (P=0·0001) and were also significantly lower than on the placebo-treated dogs (P0·05) and cats (P=0á0001). There was a marked reduction in the prevalence of clinical signs associated with ectoparasite infestation in the treated dogs and no clinical signs were observed in any of the treated cats.
Keywords: Selamectin; lice; Trichodectes canis; Felicola subrostratus; pruritus

Language: Unknown

Document Type: Research article
Site Admin
Posts: 462
Joined: Wed Aug 13, 2003 5:56 pm

Return to Parasite Prevention and Treatment

Who is online

Users browsing this forum: No registered users and 2 guests