1. Ouabain Like Substance S.J.D. Karlish and D.M. Tal Israel Patent Application # 77852 2. Guanidine, Isourea andIsothiourea Derivatives, Their Preparation and Pharmaceutical Compositions Comprising Them. S.J.D. Karlish and D.M. Tal Israel Patent Application # 105907 resubmitted as Application # 110233