**5.17 Anthelmintic effect**

Different extract and essential oil of *P. khinjuk* are significant anthelmintics, especially against *Echinococcus granulosus*, which causes hydatid cyst [101]*.* The *P. lenticus* is also the best anthelmintic [102]. The exsheathment of gastro-intestinal nematode larvae is impaired by polyphenols of *Pistacia lentiscus* [103]. Additionally, The *P. lenticus* along with other plants in mixture form killed the nematodes in naturally infected sheep [104].
