What is the efficacy and main treatment of calamus

Calamus usually refers to the traditional Chinese medicine calamus, the effect of calamus is to open the orifices and wake up the mind (open the brain orifices, wake up the mind), dissolve the dampness and stomach, tranquilize the mind and benefit the spirit, the main treatment of phlegm and clear the orifices, delirium, epigastric (abdominal) distension, forgetfulness and other conditions.
Acorus calamus is a traditional Chinese medicine, is the dried rhizome of Acorus calamus in the family of Acorus calamus, taste pungent, bitter, warm, attributed to the heart, stomach meridian, mainly used for the treatment of phlegm clearing the orifices, delirium, epigastric plumpness (stomach distension and discomfort), distension and pain, forgetfulness, insomnia, tinnitus, deafness and other conditions.
Adverse effects of Calamus are currently unknown. Note that the product is prohibited for those who are allergic to the product, allergic people should be cautious, Yin deficiency fire (deficiency of yin essence in the body, the appearance of deficiency fire hyperactivity), blood deficiency and blood heat and other patients should not be taken in a single flavor, Yin and blood deficiency should be avoided, the elderly, children, infants and young children, patients with gastric ulcers should not be taken for a long period of time.
Patients should use calamus under the guidance of a physician to identify the evidence, and should not use the drug on their own, so as not to cause adverse consequences.