Der er rapporteret om trombotiske/ vaskulære hændelser, f. eks. myokardieiskæmi, myokardieinfarkt, cerebrovaskulær hændelse (cerebral blødning og cerebral infarkt), forbigående iskæmiske anfald, dyb venetrombose, arterietrombose, pulmonal emboli, aneurismer, retinal trombose samt tilstopning af en kunstig nyre hos patienter, der får erythropoietiske midler, herunder patienter, der får epoetin alfa.
Thrombotic/ vascular events, such as myocardial ischaemia, myocardial infarction, cerebrovascular accidents (cerebral haemorrhage and cerebral infarction), transient ischaemic attacks, deep vein thrombosis, arterial thrombosis, pulmonary emboli, aneurysms, retinal thrombosis, and clotting of an artificial kidney have been reported in patients receiving erythropoietic agents, including patients receiving epoetin alfa.