Ethopabate is a veterinary drug belonging to the class of antibiotics which contains an arylamide with a phenyl ring, a monocyclic aromatic hydrocarbon, and is a very safe drug used for the prophylaxis and treatment of coccidiosis in chickens. It has anticoccidial activity, especially against the intestinal form, and lacks activity against E. tenella of the cecum worm. The drug is a competitor of PABA, which is absorbed by the parasite and interferes with folate synthesis. It has good activity against E. acervulina and some strains of E. maxima and E. brunette. It is used only in combination with amprolium, first at a concentration of 4 ppm and later at a concentration of 40 ppm.This drug reaches peak activity on day 4 of the cycle.
