Table 1.
FDA-approved antiepileptic drugs | Acute injection dose (mg/kg) | Fraction of mice with >50% spike reduction | Change in spikes relative to baseline (%)* | Statistical significance† | Effect |
Ethosuximide | 400 | 1/6 | −0.8 (± 18.9) | P = 0.96 | None |
Gabapentin | 100 | 0/4 | −10.3 (± 12.1) | P = 0.45 | None |
Levetiracetam | 200 | 7/7 | −70.6 (± 4.9) | P < 0.0001 | Suppression |
Phenytoin | 100 | 0/3 | +183.2 (± 48.7) | P = 0.043 | Exacerbation |
Pregabalin | 200 | 0/3 | +87.7 (± 14.6) | P = 0.026 | Exacerbation |
Valproic acid | 300 | 0/4 | +20.3 (± 15.4) | P = 0.28 | None |
Vigabatrin | 300 | 0/4 | +0.8 (± 15.6) | P = 0.96 | None |
*Over a period of 6 h postinjection.
†One-sample t test compared to baseline.