Endoparasites are parasites that live in the tissues and organs of their hosts, such as tapeworms, flukes, andprotozoans of vertebrates. Drenching is the forced pouring of liquid preparations down the throat of an animal. Drenching can be used forall livestock. During drenching, the animal's head must be raised so that the liquid does not enter the lungs. Abamboo tube, gourd or bottle (glass or plastic) can be used for drenching ruminants and pigs.