The leaves of the kencana ungu (Ruellia tuberosa L.) contains flavonoid compounds potentially as diuretics. This study aims to determine the diuretic activity of ethanol extract of kencana ungu leaves. Diuretic activity testing was carried out on 6 groups of test animals including normal (aquades), negative (NaCMC), positive (Furosemide), and three groups of treatment doses of 100, 200 and 400 …