Table 2

Effect of bupropion HCl 120 mg/kg intraperitoneal infusion times on time to onset of bupropion HCl-induced convulsions and on odds of convulsing vs not convulsing in mice

Group*
Intraperitoneal (IP) infusion time (min)
Time to Onset of Convulsions for Individual Mice (min)†
Reduction in hazard (probability) of convulsing

1
0 (bolus)
7; 30; 6; 120; 5; 11; 120; 120; 23; 120
-
2
15
15; 120; 5; 18; 19; 23; 14; 20; 16; 13
28.4%
3
30
20; 120; 17; 120; 120; 120; 120; 39; 42; 31
48.7%
4
60
32; 120; 42; 120; 120; 60; 120; 70; 120; 69
73.7%
5
90
120; 120; 120; 120; 120; 120; 120; 120; 120
86.5%
6
120
120; 9; 41; 120; 120; 120; 120; 120; 120; 120
93.1%
7
240
120; 120; 120; 120; 120; 120; 120; 120; 120; 120
99.5%

*Number of mice was 10 for each group, except group 5 that had 9 mice.

†Mice that did not have convulsions during treatment infusion and by the end of the 2-h post-treatment period were considered to be censored at 120 min.

‡Reduced hazard of convulsing vs not convulsing for any infusion time, x min, was calculated using the formula: 1 - (0.978x) × 100%; where 0.978 was the hazard ratio estimate obtained from Cox proportional hazards model, and x = infusion time (min).

Silverstone et al. Annals of General Psychiatry 2008 7:27   doi:10.1186/1744-859X-7-27

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