Ectoparasiticidal pour-on formulation

Abstract From the Canadian patent

The invention provides a pour-on formulation comprising a pyrethroid insecticide at a concentration of 7.5 to 75 kg/m3, a C6-15 alkanol diester of adipic or phthalic acid at a concentration of 150 to 300 kg/m3, a spreading agent at a concentration of 25 to 300 kg/m3, other additives at a concentration of 0 to 55 kg/m3, the balance being at least 67.5 kg/m3 of a veterinarily-acceptable mineral or vegetable oil having a kinematic viscosity at 40°C not greater than 35 x 10-6 m2/s (35 cSt); a process for the preparation of the formulation; and its application onto a localised region of the skin or coat of an animal for combating ectoparasites.