Oxfenda (oxfendazole) 500mg tablets are a broad-spectrum anthelmintic (deworming) medication used primarily in veterinary medicine to treat and control internal parasitic infestations in livestock, specifically cattle, sheep, goats, and horses. 

Mebenda Plus (commonly 500mg Mebendazole + 25mg Ivermectin) is a combination anti-parasitic medication used to treat mixed or stubborn intestinal worm infections, including roundworms, hookworms, pinworms, and whipworms. It works by preventing worms from absorbing nutrients and paralyzing them, leading to their death and elimination from the body.