The author treated 22 patients suffering chronic intestinal amebiasis employing the new compound Ethylchlordiphene in a dose of 600 mgm per day, after the meals, during five consecutive days for adults, and 300 mgm per day during the same period for children. The drug was excellent in all patients, and the parasitological cure rate obtained was 95,4% (21 patients). The Author concluded that the drug used in this investigations is very effective against chronic intestinal amebiasis.