| # | Side effect | Count |
|---|---|---|
| 0 | FATIGUE | 21648 |
| 1 | MULTIPLE SCLEROSIS RELAPSE | 15780 |
| 2 | OFF LABEL USE | 13782 |
| 3 | DRUG INEFFECTIVE | 11547 |
| 4 | HEADACHE | 11465 |
| 5 | GAIT DISTURBANCE | 9407 |
| 6 | MULTIPLE SCLEROSIS | 8936 |
| 7 | ASTHENIA | 8792 |
| 8 | MALAISE | 8692 |
| 9 | FALL | 8417 |
| # | Side effect | Count | Frequency |
|---|---|---|---|
| 0 | THERAPEUTIC REACTION TIME DECREASED | 1497 | 0.9100 |
| 1 | VAGINAL FLATULENCE | 71 | 0.6636 |
| 2 | DRUG DELIVERY DEVICE IMPLANTATION | 121 | 0.5475 |
| 3 | JC VIRUS TEST POSITIVE | 382 | 0.4515 |
| 4 | LOSS OF THERAPEUTIC RESPONSE | 450 | 0.4395 |
| 5 | INFUSION SITE HAEMATOMA | 142 | 0.4277 |
| 6 | NEUTRALISING ANTIBODIES POSITIVE | 118 | 0.3746 |
| 7 | POOR VENOUS ACCESS | 2591 | 0.3612 |
| 8 | AGRAPHIA | 189 | 0.3462 |
| 9 | GENERAL SYMPTOM | 2211 | 0.3378 |