| 
      
        | Body    System | Desvenlafaxine | Venlafaxine | Placebo |  
        |  | 150 mg (n=6)
 | 225 mg (n=6)
 | 300 mg (n=6)
 | 450 mg (n=6)
 | 600 mg (n=6)
 | 750 mg (n=5)
 | 750 mg fasted
 (n=6)
 | 900 mg (n=6)
 | 150 mg ( n=16)
 | (n=16) |  
        | Any adverse    event | 2    (33) | 2    (33) | 2    (33) | 2    (33) | 0 | 5    (100) | 4    (67) | 5    (83) | 5    (31) | 1 (6) |  
        | Digestive Nausea
 Nausea (severe)
 Vomiting
 | 1    (17)
 0
 0
 | 2    (33)
 0
 0
 | 2    (33)
 0
 0
 | 2    (33)
 0
 0
 | 0
 0
 0
 | 5    (100)
 0
 2    (40)
 | 3    (50)
 1    (17)
 1    (17)
 | 5    (83)
 2    (33)
 4    (67)
 | 4    (25)
 1    (6)
 1    (6)
 | 0
 0
 0
 |  
        | Nervous Dizziness
 Feeling drunk
 Paresthesia
 | 1 (17)
 1    (17)
 0
 | 0
 0
 0
 | 0
 0
 0
 | 0
 0
 0
 | 0
 0
 0
 | 0
 0
 2    (40)
 | 2 (33)
 1    (17)
 0
 | 0
 2    (33)
 0
 | 0
 0
 0
 | 0
 0
 0
 |  
        | Respiratory Yawn
 | 0
 | 0
 | 0
 | 0
 | 0
 | 2 (40)
 | 0
 | 0
 | 0
 | 0
 |  
        | Skin/appendages Sweating
 | 0
 | 0
 | 0
 | 0
 | 0
 | 0
 | 0
 | 2    (33)
 | 0
 | 0
 |  |