| # | Side effect | Count |
|---|---|---|
| 0 | DRUG INEFFECTIVE | 3578 |
| 1 | SEIZURE | 2687 |
| 2 | DRUG INTERACTION | 2596 |
| 3 | CONVULSION | 2505 |
| 4 | FALL | 2475 |
| 5 | DIZZINESS | 2366 |
| 6 | PYREXIA | 2308 |
| 7 | NAUSEA | 2070 |
| 8 | FATIGUE | 2001 |
| 9 | TOXICITY TO VARIOUS AGENTS | 1959 |
| # | Side effect | Count | Frequency |
|---|---|---|---|
| 0 | HUMAN HERPES VIRUS 6 SEROLOGY POSITIVE | 80 | 0.3922 |
| 1 | PROMINENT EPICANTHAL FOLDS | 41 | 0.3178 |
| 2 | SEDATION COMPLICATION | 384 | 0.2797 |
| 3 | ANTICONVULSANT DRUG LEVEL ABOVE THERAPEUTIC | 131 | 0.2373 |
| 4 | ANTICONVULSANT DRUG LEVEL INCREASED | 328 | 0.2315 |
| 5 | SUDDEN UNEXPLAINED DEATH IN EPILEPSY | 68 | 0.1643 |
| 6 | DECREASED EYE CONTACT | 35 | 0.1483 |
| 7 | CHANGE IN SEIZURE PRESENTATION | 35 | 0.1452 |
| 8 | COMPLEX PARTIAL SEIZURES | 160 | 0.1438 |
| 9 | LYMPHOCYTE MORPHOLOGY ABNORMAL | 72 | 0.1434 |