L-Praziquanamine is primarily used in the field of veterinary medicine as an effective anthelmintic agent. It is particularly valuable in treating parasitic worm infections in animals, including livestock and pets. The compound works by targeting the nervous system of the parasites, leading to paralysis and subsequent elimination from the host's body. Its application helps improve animal health, productivity, and overall welfare by reducing the burden of parasitic infections. Additionally, it is sometimes employed in research settings to study the mechanisms of antiparasitic drugs and their effects on helminths.