| Year published | 2008 |
| Literatures (Research papers) |
Shinno H, Kamei M, Nakamura Y, Inami Y, Horiguchi J: Successful treatment with Yi-Gan San for rapid eye movement sleep behavior disorder. Prog Neuropsychopharmacol Biol Psychiatry 32(7):1749-1751, 2008. |
| Kampo formulas | yokukansan |
| Remarks | yokukansan |