Serious adverse events related to study drugs
| Group | FPHT | LEV | P value |
| n | 82 | 94 | |
| Serious adverse event within 1 hour, n (%) | 3 (3.7) | 0 (0) | 0.061 |
| Cardiac arrest | 1 (1.2) | 0 (0) | |
| Respiratory arrest | 1 (1.2) | 0 (0) | |
| Hypertension | 1 (1.2) | 0 (0) | |
| Serious adverse event within 24 hours, n (%) | 0 (0) | 0 (0) | |
| Serious adverse event within 7 days, n (%) | 0 (0) | 0 (0) |
Each variable is expressed as n (%) and compared using the χ2 test.
FPHT, fosphenytoin; LEV, levetiracetam.