SummaryThe authors determine scrupulously a method of utilization of anticoagulants. They establish a series of strict rules thanks to which anticoagulant treatment is without danger and can be applied not only in clinics, but also at home, and even to out-door patients, when the acute period of the disease that requires this treatment is followed by a stage allowing a certain degree of mobilization.The authors emphasize that those indications should be followed, as they have been established on the basis of a four years experience with Pelantan and Tromexan.