Efficacy of Amitraz plus Metaflumizone for the treatment of canine demodicosis associated with Malassezia pachydermatis
This case reports the efficacy of metaflumizone plus amitraz spot-on formulation (ProMeris Duo; Fort Dodge) against generalized demodectic mange. A two year-old male dog presented at clinical examination with poor general condition, diffused alopecia, crusted lesions, pruritus, skin scales and pustules.
Demodex mites, Malassezia pachydermatis yeasts and bacteria were diagnosed. The dog was treated with cephalexin and topically with metaflumizone plus amitraz spot-on formulation at two weeks intervals until two consecutive skin scrapings resulted negative for mites.
The number of adult mites statistically decreased at follow-up with a reduction of approximately 42 and 94% at +14 and +28 days post treatment (p.t.) respectively. Nymphs and larvae could not be detected from +28 day p.t.
while eggs were no longer present +42 day p.t. The dog was negative for both bacteria and M.
pachydermatis at 14 days p.t ., coinciding with improved general clinical conditions, recovering skin lesions and no further signs of pruritus. These results show that metaflumizone plus amitraz associated with the antibiotic therapy is highly effective for treating generalized demodectic mange and could also be effective toward controlling M.
pachydermatis opportunistic infections.
Author: Viviana D Tarallo, Riccardo P Lia, Mariateresa Sasanelli, Claudia Cafarchia and Domenico Otranto
Credits/Source: Parasites &Vectors 2009, 2:13
Published on: 2009-03-05
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