| Purpose | Patients | Evaluations | Perceived Effectiveness |
|---|---|---|---|
| Epilepsy | 13 | 8 | |
| Brain tumor | 4 | 2 | |
| Seizures | 2 | 2 | |
| Pain in lower back | 1 | 2 |
Common side effects
| Side effect | Patients | Percentage |
|---|---|---|
| Fatigue | 1 | |
| Headaches | 1 | |
| Hearing loss | 1 | |
| Seizures (grand mal or tonic-clonic) | 1 |
Side effect severity
| Severity | Evaluations | Percentage |
|---|---|---|
| Severe | 4 | |
| Moderate | 3 | |
| Mild | 2 | |
| None | 2 |