Vetmax Louse PowderSuitable for use on animals that do not lick their skin fur such as cows, horses, donkeys, alpacas, goats, sheep, pigs and poultry. Not suitable for dogs and cats Active ingredient: P Menthane 3,8 diol 0. 8%w w No withholding period for meat or eggs Effective on lice as well as red and white mites The powder acts as a repellent, rather than killing the insect and will be effective for up to seven days so long as the powder is kept dry Apply 5 to 10 g