Table 2.
Methamphetamine model
| Treatment group | SB | SIB | Mortality |
|---|---|---|---|
| Experiment 1 | |||
| Methamphetamine alone | 10/12 | 2/12 | 1/12 |
| Methamphetamine + 5 mg/kg nifedipine | 5/12 | 0/12 | 0/12 |
| Experiment 2 | |||
| Methamphetamine alone | 11/12 | 4/12 | 1/12 |
| Methamphetamine + 10 mg/kg nifedipine | 1/12 | 0/12 | 0/12 |
| Experiment 3 | |||
| Methamphetamine alone | 8/12 | 4/12 | 0/12 |
| Methamphetamine + 20 mg/kg nifedipine | 0/12 | 0/12 | 0/12 |
A χ2 analysis comparing animals treated with or without nifedipine revealed significant effects on both SB (χ2 = 29.4, p < 0.001) and SIB (χ2 = 11.6, p < 0.001).