the systemic activities associated with an inhibition of 50 % of the generated thrombi were as follows : 0.17 +/- 0.02 anti-xa and 0.16 +/- 0.03 anti-iia units obtained after injection of 97 micrograms/kg ( 14 anti-xa and anti-iia units/kg ) of unfractionated heparin , 0.28 +/- 0.04 anti-xa and 0.14 +/- 0.03 anti-iia units obtained after injection of 250 micrograms/kg ( 15 anti-xa and 7.5 anti-iia units/kg of pk 10169 , and 2.6 +/- 0.2 anti-xa and 0.06 +/- 0.01 anti-iia units obtained after injection of 5000 micrograms/kg ( 260 anti-xa and 5 anti-iia units/kg ) of emt 680 .
C0019134
unfractionated heparin
C0019139
anti-xa