Fenbendazole is a benzimidazole-class compound used primarily to treat intestinal parasites such as roundworms, hookworms, and tapeworms in animals. It works by disrupting microtubule formation within parasites, which interferes with their ability to absorb nutrients — leading to their death.

Ivermectin is a well-established ingredient used to treat parasitic infections such asriver blindness (onchocerciasis), strongyloidiasis, andscabies. It works by binding to glutamate-gated chloride channels in nerve and muscle cells of parasites, causing paralysis and death of the organism.