| Time  (AM Dose)                                                                         (PM Dose) | 
      
        | -60 | -30 | +60 | +120 | -30 | +60 | +120 | +180 | +240 | 
      
        | HEART    RATEPlc/Plc
 69.78 (9.27)
 Plc/SYN11572.85 (11.26)
 | 
 67.0 (10.81)
 72.30 (9.97)
 | 
 63.0 (9.29)
 65.69 (7.21)
 | 
 60.56 (6.56)
 63.38 (4.86)
 | 
 62.22 (9.74)
 64.76 (6.49)
 | 65.22 (8.97)
           63.85 (8.16)
 | 62.78 (8.21)
 62.76 (6.15)
 | 64.0 (7.94)
 66.15 (7.82)
 |             61.44 (4.95)
           65.23 (4.75)
 | 
      
        | SYSTOLIC    BP (mm Hg)Plc/Plc
 111.89 (10.09)
 Plc/SYN115108.77 (10.84)
 | 
 
 112.56 (10.44)
 108.08 (11.84) | 
 
 112.22 (11.19)
 114.69 (12.73) | 
 
 111.67 (13.71)
 115.15 (9.05) | 
 
 113.0 (11.32)
 112.15 (8.59) | 
 
 111.56 (5.48)
 111.92 (9.21) | 
 
 107.0 (5.41)
 113.38 (11.38) | 
 114.11 (13.46)
 116.84 (12.44) | 
 121.33 (13.9)
 122.0 (17.1) | 
      
        | DIASTOLIC    BP (mm Hg)Plc/Plc
 72.89 (10.95)
 Plc/SYN11571.54 (11.12)
 | 
           73.11 (7.08) 72.15 (10.67) | 
 
 69.67 (8.08)
 73.76 (12.28) | 
 
 70.56 (11.40)
 73.23 (9.81) | 
 
 72.67 (12.35)
 74.54 (6.84) | 
 
 77.22 (4.02)
 76.54 (6.41) | 
 
           73.56 (5.75) 75.85    (11.30) | 
 
 67.22 (8.30)
 75.76 (9.82) | 
 
 73.33 (6.81)
 76.77 (10.83) |