Mean score (n = 9) (range mini-max)
    Before 0.5 hour 1 hour
Astemizole Control 0.55 (0-2) 0.22 (0-1) 0.75 (0-2)
1 mg/kg 0.55 (0-2) 2.11 (0-3) 2.22 (0-4)
3 mg/kg 0.55 (0-1) 3.22 (1-4) 2.67 (0-4)
Cisapride Control 0.4 (0-2) 0.7 (0-2) 0.6 (0-2)
1.5 mg/kg 0.3 (0-2) 1.6 (0-3) 0.7(0-2)
6 mg/kg 0.2 (0-1) 2.6 (0-4) 2.3 (0-5)
Table 2: Notching of the T wave recorded in CV5RL precordial lead, after treatment of dogs with astemizole or cisapride.