Effects of newer oral contraceptives on the inhibition of coagulation and fibrinolysis in relation to dosage and type of steroid.

Oral contraceptives influence plasma proteins, causing changes in plasma procoagulants and fibrinolytic effectors. Estrogen is thought to be responsible for these changes, whereas progestogens, in particular those with an androgenic effect, may influence the magnitude of the changes. This concept is consistent with epidemiologic studies, suggesting a… CONTINUE READING