Description: It`s off-white crystalline, odorless powder. Uses: It can be used to extinguish horse parascaris equorum,imago and larva at the fourth growing period of xyuris equi, S.equinus, S.edentatus, S.vulgaris, dictyocaulus arnfiedi, etc, and imago and larva at the fourth growing period of cattle ostertagia, haemonchus, trichostrongylus orientalis, nematodirus, bunostomum, esophagostroma, dictyocaulus, imago of fasciola hepatica and moniezia.