Which drug would be expected to eliminate Moneizia spp. from cattle when treatment is desired?

Moneizia spp., a type of cestode (tapeworm) that can affect cattle, can be effectively targeted with specific anthelmintic treatments. Albendazole is particularly well-suited for the elimination of Moneizia spp. because it has a broad spectrum of activity against various helminths, including cestodes. Its mechanism involves disrupting the energy metabolism of the worm, leading to its death.

While praziquantel is highly effective against many types of parasitic worms, particularly cestodes, it is primarily used in treating infections in small animals and some species, rather than in cattle. Fenbendazole is effective against nematodes and some cestodes, but is generally not the first choice for treating Moneizia in cattle. Ivermectin is known for its efficacy against a range of parasites, including nematodes and some ectoparasites, but it does not effectively eliminate tapeworms like Moneizia spp.

Thus, the selection of albendazole as the effective treatment aligns with the specific needs for targeting Moneizia spp. in cattle, making it the best choice among the provided options.