at an equimolar dose of 71 mumols/kg , p.o. , the effect of ta-870 continued for greater than 4 h , while that of da-hcl lasted for only 2 h : the peak free-da concentration and maximum increase in rbf were 155 +/- 57 ng/ml and 56 +/- 15 % , respectively , for ta-870 , and those for da-hcl were 32 +/- 13 ng/ml and 36 +/- 10 % .
C0013030
free-da
C0282151
da-hcl