Calamus as a traditional Chinese medicine is mainly used for the treatment of dizziness and epilepsy, forgetfulness and insomnia, tinnitus and deafness, epigastric plumpness and lack of hunger and other diseases. Acorus calamus is the dried rhizome of Acorus calamus in the family of Tennantiaceae, with pungent and bitter taste, warm nature, belonging to the heart and stomach meridians, it has the efficacy of opening up the orifices and expelling phlegm, awakening the mind and promoting wisdom, resolving dampness and opening up the stomach (normalizing gastrointestinal function by removing dampness), and is mainly used in the treatment of somnambulism and epilepsy, forgetfulness and insomnia, tinnitus and deafness, epigastric rumpus and lack of hunger, and silencing of the mouth and dysentery (dysentery and inability to eat), among other diseases. The adverse effects and contraindications of this drug are not known. It should be reminded that, if you need to use Chinese herbs, you need to ask your doctor or pharmacist to take it after integrating your condition, physique, way of taking and other factors to identify and judge, don’t use it blindly on your own, so as not to delay your condition.