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Table 4 Percentage efficacy of Effitix® against Ixodes ricinus 48h after treatment/infestation (geometric and arithmetic mean)

From: Efficacy of a fixed combination of permethrin 54.5% and fipronil 6.1% (Effitix®) in dogs experimentally infested with Ixodes ricinus

Means Days of treatment
2 1 9 2 16 2 23 2 30 2 37 2
Arithmetic 98 % 100 % 100 % 100 % 93 % 95 %
Geometric 98 % 100 % 100 % 100 % 97 % 96 %
  1. 1: therapeutic efficacy of the combination against day-2 infestation.
  2. 2: prophylactic efficacy against weekly tick re-infestation.