... significant improvement in tardive dyskinesia, psychosis, schizophrenia, Yi Gan San (Restrain the Liver Powder) contains Dang Gui, Fu Ling, Bai Zhu, Gou Teng, Chuan Xiong, Chai Hu, and Gan Cao. The formula is often used for headaches, dizziness, anxiety, panic attacks, teeth grinding, chills ...