For the treatment and control of roundworms, nasal bot and itchmite in sheep. For protection against severe challenge by Haemonchus contortus (barbers pole worm) for up to 4 months. Contains moxidectin the most potent macrocyclic lactone (ML). Ideal for use where paddock larval burdens are high, or where animal immunity levels are expected to be low (e.g. lactating ewes and merino weaners).