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Characteristics of previous prophylactic treatment.
| Medication | n (%) | Treatment duration (months) | End of onabotulinumtoxinA (BoNTA) therapy to erenumab initiation in years | Reason for treatment discontinuation | |
|---|---|---|---|---|---|
| Side effects | Lack of efficacy | ||||
| β-Blocker | 90.6 | 29.9 ± 47.9 | 6.6 ± 5.9 | 40.3% | 95.1% |
| Topiramate | 87.1 | 20.2 ± 31.1 | 5.9 ± 4.9 | 72.4% | 81.4% |
| Flunarizine | 65.5 | 5.2 ± 7.6 | 6.0 ± 6.3 | 52.0% | 89.8% |
| Valproate | 36.0 | 3.2 ± 2.9 | 6.1 ± 6.2 | 82.6% | 91.3% |
| Amitriptyline | 77.4 | 17.1 ± 26.6 | 5.2 ± 5.1 | 61.7% | 92.2% |
