[Effect of low-dose oral contraceptive regulon-Gedeon Richter on some hemostatic variables].

The authors have investigated the changes of some haemostatic variables at 33 women, who used low-dosed oral contraceptive REGULON--Gedeon Richter in the duration of six months. Statistically significant decrease is found in the activity of Protein S and Protein C, but plasminogen level is increased. The levels of the other variables remained in referential ranges. The use of REGULON doesn't influence the coagulation system.