Table 5

Plasma protein binding and RB value of tamsulosin in rats, dogs, and humans

Drug concentrations5-a(ng/ml)RatsDogsHumans
% bound (fu)20080.6  (0.194)90.2  (0.098)98.9  (0.011)
60079  (0.210)90.3  (0.097)99.1  (0.009)
RB 501.200.72ND
200NDND0.53
  • Values represent the mean of triplicate determinations.

  • ND, Not determined.

  • 5-a Nominal concentration of 14C-tamsulosin in plasma or blood before centrifugation.