| Year published | 2003 |
| Literatures (Research papers) |
Yabe T, Tuchida H, Kiyohara H, Takeda T, Yamada H: Induction of NGF synthesis in astrocytes by onjisaponins of Polygala tenuifolia, constituents of kampo (Japanese herbal) medicine, Ninjin-yoei-to. Phytomedicine 10(2-3):106-114, 2003. |
| Kampo formulas | ninjin'yoeito |
| Remarks | ninjin'yoeito |