Niclosamide

Killing parasites: Niclosamide can kill the adult and larvae in the parasite, thus effectively treating parasitic infections.
Preventing the spread of parasitic infections: Niclosamide can prevent the growth and reproduction of parasites, thereby reducing the spread of parasitic infections.
Preventing and treating tapeworm infections: Niclosamide is a first-line drug for treating tapeworm infections and can effectively remove adult worms and oocysts in the tapeworm.
Preventing and treating other parasitic infections: Niclosamide can also be used to treat other parasitic infections such as hookworms and roundworms.

In summary, Niclosamide is an effective antiparasitic drug that can be used to treat a variety of parasitic infections and prevent the spread of parasitic infections.