| Purpose | Patients | Evaluations | Perceived Effectiveness |
|---|---|---|---|
| Epilepsy | 2,743 | 403 | |
| Bipolar disorder | 655 | 37 | |
| Trigeminal neuralgia | 381 | 75 | |
| Bipolar II disorder | 146 | 23 | |
| Bipolar I disorder | 131 | 14 |
Common side effects
| Side effect | Patients | Percentage |
|---|---|---|
| Fatigue | 38 | |
| Dizziness | 34 | |
| Drowsiness | 25 | |
| Sleepiness | 23 | |
| Nausea | 21 | |
| Excessive daytime sleepiness (somnolence) | 19 |
Side effect severity
| Severity | Evaluations | Percentage |
|---|---|---|
| Severe | 130 | |
| Moderate | 200 | |
| Mild | 191 | |
| None | 195 |