| Regional names | |
| Piccap: | "WuzhuYu" in Chinese characters |
| C: | Chinese: 吴茱萸 |
| Showflag: | p |
| P: | wu zhu yu |
| Kanji: | Japanese: 呉茱萸 |
| Kana: | Japanese: ごしゅゆ |
| Revhep: | goshuyu |
Tetradium ruticarpum is a tree that comes from China and Korea. It was previously classified in the genus Euodia as Euodia ruticarpa. The fruit is usually used, denoted sometimes as fructus. It has a strong bitter taste, and is used in traditional Chinese medicine (TCM) and is a recognized herb in Kampo. Both the former genus name and the species name are often misspelled, and the plant usually appears in sources dealing with traditional Chinese medicine as "Evodia(e) rutaecarpa".
Tetradium ruticarpum is grown mainly in China.
The fruit is picked. It may be consumed as food.
In traditional Chinese medicine the herb is described as a fruit.
Tetradium ruticarpum is called in Japanese, used in Goshuyu-tou and Unkentou . These are Kampo (漢方) preparations of mixed herbs, the former named after this plant.[1] The mixture is noted for having a high concentration (132.6 to 706.3 mmol/100 g) of antioxidants, where the other constituents of the mixture rank lower.[2]
Allergic reactions have occasionally been reported in users of medicinal preparations of the plant.
There has been relatively little scientific study of Tetradium ruticarpum except for antioxidant capacity of one of its mixtures.
Notable compounds in T. ruticarpum include:[3]
In rats, the half-lives of most of these compounds was found to be relatively short, between 0.5 - 2 hours.[3]
There are a few variants:[4]