Clorsulon is primarily used in veterinary medicine as an anthelmintic, specifically for the treatment of parasitic infections. It is highly effective against liver flukes, particularly Fasciola hepatica, which commonly infect livestock such as cattle and sheep. By inhibiting the enzyme system of the parasite, it disrupts their energy metabolism, leading to their death. This helps in improving the health and productivity of infected animals. It is often administered orally or through injection, ensuring efficient absorption and action. Clorsulon is also sometimes used in combination with other antiparasitic agents to enhance its efficacy and broaden its spectrum of activity. Its use is crucial in controlling parasitic infestations, which can cause significant economic losses in the agricultural sector.