Table 4 Severity of pruritus of people in contact with the dogs. Range, median and mean pruritus, assessed by a 10 cm visual analogue scale, of eight people living and/or working on the same premises where dogs were treated with either 54.5% permethrin-6.1% fipronil combination or were sham-treated and sheep were treated with either 1% deltamethrin or placebo at the beginning of the trial (day 0) and after 14, 28, 56 and 84 days

From: A field trial of a fixed combination of permethrin and fipronil (Effitix^®) for the treatment and prevention of flea infestation in dogs living with sheep