Intestinal parasitic infections represent seriousrnmedical and public health problems in many developingrncountries especially in the tropical regions. Taeniasisrnand cysticercosis have been recognized as importantrnproblems not only because of their impact on health butrnalso because of economic losses resulting fromrncondemnation of infected carcasses. The most frequentlyrnsold traditional medicines in Ethiopia are therntaenicides. This is apparently due to the high prevalencernof taeniasis in this country. Al though a nu.mber ofrnwriters have mentioned a list of traditional taenicidalrndrugs in Ethiopia, very little serious work has beenrncarried ou.t to determine their relative efficacy. Thernpresent study is a contribution towards that end.rnTwelve traditional drugs used against human taeniasis inrnEthiopia were screened for their taenicidal propertiesrnusing the earthworm. The drugs were extracted usingrnwater and ethanol. The potency of the traditional drugrnextracts was compared with that of a commercialrntaeniacide, niclosamide. Resul ts showed that Hageniarnabyssinica (Kosso) is the most potent traditionalrntaeniacide, followed by Glinus lotoides (Mettere),rnAlbizia anthelmintica (Musenna), and, Myrsine africanarn(Ketchemo) in that order.