Numerous bipolar plugged capillarid eggs were detected on a routine centrifugal fecal flotation examination of a 2 yr old castrated male boxer-Chinese shar pei mixed-breed. The eggs were identified as Eucoleus boehmi (E. boehmi), the nasal capillarid, based on size and shell wall surface morphology. The dog had a history of chronic sneezing (> 5 times/day) and intermittent postexercise nasal discharge. Currently, there are no anthelmintics approved for use in dogs for the treatment of E. boehmi. Treatment of the dog with 0.5–1 mg/kg milbemycin oxime was ineffective, but treatment with 2 mg/kg milbemycin oxime resulted in negative fecal examinations 7–28 days and 5 mo posttreatment. The dog’s postexertion nasal discharge greatly lessened, and the sneezing behavior improved (it was only noted 2–3 times/wk), but neither the discharge nor sneezing completely resolved following the anthelmintic treatments. Use of milbemycin oxime at an increased dose (2 mg/kg) appeared to be an effective treatment against E. boehmi infection in this dog based on clinical response and the cessation of fecal egg shedding.

You do not currently have access to this content.