Using oxygenated heterocycles chosen from xanthones and biflavonoids for preparing a composition destiny to act as anticoccidial agent

The present invention relates to the use of oxygenated heterocycles selected from xanthones and bioflavonoids for the preparation of a composition intended to act as an anticoccidial agent, the coccidia being selected from the group consisting of Eimeria, Isospora, Toxoplasma, Besnoitia and Neospora. In particular, the composition is for the prevention or treatment of coccidiosis in humans or animals. Advantageously, such a composition is to be administered orally. The present invention also relates to a novel compound of formula (Ia), the laurentinone A.