| TRADE | COUNTRY |
| Antisacer | Poland |
| Di-Hydan | France |
| Difhydan | Denmark |
| Dilantin | Canada |
| Dilantin | France |
| Dilantin | India |
| Dilantin | Israel |
| Dilantin | Malaysia |
| Dilantin | Philippines |
| Dilantin | Taiwan |
| Dilantin | Thailand |
| Dintoina | Italy |
| Diphantoine | Netherlands |
| Epamin | Ecuador |
| Epamin | Mexico |
| Epanutin | Sweden |
| Epilan-D | Austria |
| Fenantoin | Sweden |
| Fenytoin | Denmark |
| Hydantin | Finland |
| Lehydan | Sweden |
| Nuctane | Mexico |
| Phenhydan | Austria |
| Phenhydan | Germany |
| Phenhydan | Switzerland |