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Table 2 Reasons for discontinuation of onabotulinumtoxinA treatment (n = 9)

From: Sustained onabotulinumtoxinA therapeutic benefits in patients with chronic migraine over 3 years of treatment

Reasons for discontinuation of Onabotulinumtoxin-A treatment

N (%)

Lost to follow-up

3 (33.3%)

Financial limitations

1 (11.1%)

Patients significantly improved/ No additional sessions were needed

5 (55.5%)

  1. T1, T2: Follow up after 9 and 24 months, respectively