PF 1022A is primarily used as an anthelmintic agent, which means it is effective in treating parasitic worm infections in animals. It is particularly utilized in veterinary medicine to control and eliminate gastrointestinal nematodes in livestock, such as cattle, sheep, and goats. The compound works by disrupting the nervous system of the parasites, leading to their paralysis and eventual death. This helps in improving the health and productivity of the treated animals. Additionally, PF 1022A is sometimes incorporated into feed formulations to ensure consistent and effective delivery of the anthelmintic properties. Its application is crucial in maintaining the well-being of livestock and preventing economic losses associated with parasitic infections.