Extinosad Pour-On is registered for the control of spinosad-susceptible lice (Bovicola ovis) in sheep up to 7 days off-shears and sheep with long wool. It has the following key benefits: Powerful knockdown chemistry that starts killing lice within hours of contact. Unique mode of action that kills lice like no other, ideal for rotation programs. No known field resistance, kills SP resistant strains of lice. Maximum marketing flexibility with a zero (0) days withholding period for wool and an ESI of only 21 days when applied off-shears or to unshorn lambs. Maximum management flexibility being able to be applied to sheep off-shears, with long wool or suckling lambs (unshorn). Water based, odourless formulation with a favourable safety profile that poses low risk to livestock, shearers, farm workers and the environment when used according to label instructions.