Goreisan, Goshuyuto, Tokishakuyakusan, and Keishibukuryogan are frequently used to treat migraines. Goreisan is also used to treat chronic subdural hematoma. Yokukansan and Keishikaryukotsuboreito are useful for alleviating the behavioral and psychological symptoms of dementia. Keishikajyutsubuto and Shinbuto are used to treat numbness and pain associated with peripheral neuropathy. Hangeshashinto has been successfully attempted to treat intractable hiccoughs. It is advisable to use an extract of stable quality in accordance with the rule of thumb described in the classics. However, awareness of side effects, such as pseudoaldosteronism caused by licorice, is important.