Active constituents: Ivermectin 10g/L & Clorsulon 100g/L. For the treatment and control of Ivermectin and Clorsulon sensitive internal and external parasites of beef and dairy cattle. Mectec Plus is a ready to use broad-spectrum endectocide injection for cattle containing Ivermectin and Clorsulon for the treatment and control of Ivermectin and Clorsulon sensitive strains of internal and external parasites of cattle, including adult liver flukes.