usage of Phenytoin (Dilantin) for treating such symptoms?

Apart from the treatment for epilepsy, has anyone used Phenytoin (Dilantin) for the treatment of the following symptoms? And if you have how much did it benefit your symptoms?

Obsessive / racing thoughts, Anger, Anxiety, Rage, Depression.

** I have heard that Phenytoin is said to treat over 100 symptoms of misc diseases. But i don't know of the efficacy to this statement.