The European Agency for the Evaluation of Medicinal Products Veterinary Medicines and Information Technology Unit

1. Flumethrin is a synthetic pyrethroid ectoparasiticide. In veterinary medicine it is applied topically to sheep, cattle and goats, as a 1% w/v pour-on (in approximately 75% liquid paraffin, 10% 2octyldodecanol and 0.5% Solvesso 150) or as a plunge dip (6% w/v flumethrin in approximately 73% Solvesso 200, 3% Solvesso 150 and emulsifiers), for the control of ticks, lice and mites. The pour-on is applied at a rate of 2 mg/kg bw. The plunge dip is diluted at a rate of 1 litre product in 900 litres water. For control of scab, the sheep must be dipped for one minute. Plastic strips impregnated with 3.6 mg flumethrin are hung in beehives for the diagnosis and treatment of varroatosis in honeybees. Four strips per hive are used for mature colonies and 2 per hive for immature colonies.