| Purpose | Patients | Evaluations | Perceived Effectiveness |
|---|---|---|---|
| Epilepsy | 3,856 | 976 | |
| Seizures | 259 | 132 | |
| Seizures (grand mal or tonic-clonic) | 125 | 88 | |
| Seizures (complex partial) | 42 | 37 | |
| Seizures (partial focal) | 22 | 3 |
Common side effects
| Side effect | Patients | Percentage |
|---|---|---|
| Fatigue | 41 | |
| Drowsiness | 37 | |
| Tiredness | 31 | |
| Dizziness | 30 | |
| Mood swings | 30 | |
| Excessive daytime sleepiness (somnolence) | 29 |
Side effect severity
| Severity | Evaluations | Percentage |
|---|---|---|
| Severe | 171 | |
| Moderate | 305 | |
| Mild | 322 | |
| None | 370 |