Table 4

Effect of a single oral dose of OPC-51803 on plasma hormone levels in male Sprague-Dawley rats

AVPRenin ActivityAldosteroneNorepinephrineEpinephrine
pg/ml ng/ml/h pg/ml ng/ml ng/ml
Vehicle0.9  ± 0.17.51  ± 0.79217  ± 366.78  ± 0.423.00  ± 0.35
OPC-51803 (mg/kg, p.o.)
 0.030.9  ± 0.09.30  ± 3.72200  ± 4210.02  ± 0.704.04  ± 0.53
 0.11.6  ± 0.98.03  ± 2.67343  ± 8610.59  ± 1.364-150 4.18  ± 0.53
 0.30.8  ± 0.16.08  ± 1.52132  ± 359.54  ± 1.063.77  ± 0.43

Values are expressed as mean ± S.E.M. of five separate binding experiments performed in duplicate.

  • 4-150P < .05 vs. vehicle.