whereas conventional prazosin ( 2 mg ) produced a maximum reduction in erect blood pressure at 3 hours ( 80/46 mm hg compared with 110/65 mm hg with placebo ) , the lowest blood pressure of 94/48 mm hg with oros prazosin ( 5.5 mg ) was not observed until 8 hours after administration .
C0020649
lowest blood pressure
C0032912
prazosin