Used as an anthelmintic agent to treat parasitic worm infections, particularly roundworm and pinworm infestations in humans and animals. It works by paralyzing the worms, allowing the host to expel them from the gastrointestinal tract. Commonly formulated in oral suspensions, tablets, or syrups for pediatric and adult use. Also serves as a building block in organic synthesis for pharmaceuticals and agrochemicals due to its heterocyclic amine structure. Occasionally employed in gas treatment processes to remove carbon dioxide and hydrogen sulfide from natural gas streams.