lǎo / zhōng yī / kāi de / ān shén / yào fāng / lǐ / ， / yǒu / yī wèi / guān jiàn / de / dān shā / 。

老中医开的安神药方里，有一味关键的丹沙。

There is a key ingredient of cinnabar in the tranquilizing prescription prescribed by the old Chinese medicine doctor.