| Characteristic | 
        Ondansetron (n = 32) | 
        Placebo (n = 33) | 
        p | 
       
      
        Plasma GGT, U/L; mean (SD) 
          (reference range 8-61)  | 
        
            109.66  
            (89.71) | 
        
            232.39 (491.06) | 
        
            t = -1.39, 63 df, p = 0.17 | 
       
      
        Plasma ALT, U/L; mean (SD) 
          (reference range < 41)  | 
        
            35.37  
            (26.24) | 
        
            36.06 (29.98) | 
        
            t = -0.09, 63 df, p = 0.92 | 
       
      
        Plasma AST, U/L; mean (SD) 
          (reference range < 37)  | 
        
            33.97  
            (23.97) | 
        
            47.58 (45.64) | 
        
            t = -1.50, 63 df, p = 0.14 | 
       
      
        Plasma MCV, f/L; mean (SD) 
          (reference range 80-100)  | 
        
            95.72  
            (8.60) | 
        
            94.74 (6.43) | 
        
            t = 0.51, 63 df, p = 0.61 | 
       
      
        | CIWA-AR, mean (SD) | 
        13.09 (8.87) | 
        14.24 (9.54) | 
        t = -0.50, 63 df,   p = 0.62 | 
       
      
        | SADD, mean (SD) | 
        28.41 (8.61) | 
        24.73 (6.94) | 
        t = 1.90, 63 df, p = 0.06 | 
       
      
        | OCDS, mean (SD) | 
        48.47 (8.89) | 
        44.40 (10.09) | 
        t = 1.72, 63 df, p = 0.09 | 
       
      
        | HDRS, mean (SD) | 
        9.01 (5.07) | 
        10.15 (5.57) | 
        t = -0.87, 63 df, p = 0.39 | 
       
     
    
    Biological markers were measured and instruments were applied over two weeks
    before the beginning of double-blind study. 
    GGT: Gamma-Glutamyl Transferase; ALT: Alanine Aminotransferase; AST:
    Aspartate Aminotransferase; MCV: Mean Cellular Volume; CIWA-AR: Clinical
    Institute Withdrawal Assessment; SADD: Short Alcohol Dependence Data; OCDS:
    Obsessive-Compulsive Drinking Scale; HDRS: Hamilton Depression Rating Scale. |