Category | Pharmacologic Agent | Trade Name | Prevalence |
---|---|---|---|
Anticonvulsants | Phenytoin | Dilantin | 50% |
 | Sodium valproate (valproic acid) | Depakene, Depacon, Epilim, Valpro | Rare |
 | Phenobarbitone | Phenobarbital, Donnatal | <5% |
 | Vigabatrin | Sabril | Rare |
 | Carbamazepine | Tegretol | None reported |
Immunosuppressants | Cyclosporin | Neoral, Sandimmune | Adults 25–30% Children >70% |
Calcium channel blockers | Nifedipine | Adalat, Nifecard, Procardia, Tenif | 6–15% |
 | Isradipine | DynaCirc | None reported |
 | Felodipine | Agon, Felodur, Lexxel, Plendil | Rare |
 | Amlodipine | Lotrel, Norvasc | Rare |
 | Verapamil | Calan, Covera, Isoptin, Tarka, Verelan | <5% |
 | Diltiazem | Cardizem, Dilacor, Diltiamax, Tiazac | 5–20% |