Table 2.

Composition of herbs in Orengedokuto () and the main function of respective herbs

Name of the herb (Japanese: Chinese), N	Main function
Rhizoma Coptidis (Oren: huang lian), 2	Clears heat and dries dampness
Radix Scutellariae (Ogon: huang qin), 3	Clears heat and dries dampness
Cortex Phellodendri (Obaku: huang bai), 1.5	Clears heat and dries dampness
Fructus Gardeniae Jasminoidis (Shishi: zhi zi), 2	Clears heat and eliminates irritability

Notes: Coptis decoction to relieve toxicity (US name¹⁸), Huang lian jie du tang (Chinese name).

N (see Table 1).