Big pharmacies, such as Sheikh Pharmacy, have it. Tu Su wine was created by Hua Tuo, a famous doctor at the end of Han Dynasty. Its formula is made by soaking rhubarb, Atractylodes macrocephala, Cinnamomum cassia twig, Saposhnikovia divaricata, Zanthoxylum bungeanum, monkshood and monkshood in wine. It takes about 1 month to soak 45% white wine until the color of the wine turns brown. It is said to be exorcism wine.