Ziverdo Kit is a combination of three drugs: zinc acetate, doxycycline and ivermectin. Zinc acetate is a zinc additive that provides essential nutrients. Doxycycline is an antibiotic. It stops the growth of bacteria by preventing the synthesis of essential proteins that bacteria need to perform important functions. Ivermectin is an anthelmintic. It works by attaching to the worm's muscles and nerve cells, paralyzing them and causing them to die. It cures your infection.