Use
The helminths, or parasitic worms, comprise the nematodes (roundworms), trematodes (flukes), cestodes (tapeworms) and acanthocephalans (thorny-headed worms). Most anthelmintics were discovered and developed for use in the veterinary field, where helminths significantly impact health and productivity. Few companies are searching for new compounds for use in human medicine, but commercial competition has produced a steady supply of new products for the veterinarian.