Acorus calamus 3 grams may be useful in the treatment of tinnitus, but it should be used in accordance with the doctor’s prescription and evidence. Acorus calamus is the dried rhizome of Acorus calamus, which is pungent, bitter and warm in nature. Attributed to the heart meridian, stomach meridian. It has the effect of awakening the spirit and wisdom, opening the orifices to dispel phlegm, resolving dampness and opening up the stomach (normalizing gastrointestinal function by removing dampness). It is used for tinnitus and deafness, forgetfulness and insomnia, dizziness and epilepsy, dysentery who do not want to eat and drink, dysentery, and distention of the epigastrium (abdomen) without feeling hungry. The usual dosage of Acorus calamus is 3 to 10 g. Therefore, using 3 g of Acorus calamus may have a therapeutic effect on tinnitus. Calamus should be used with caution in cases of yin deficiency and hyperactivity of yang (vertigo and tinnitus, five heartburns and heat, red face and eyes, head and eyes distention and pain, impatience and irritability, dry mouth, night sweating, etc.), profuse sweating, and slippery spermatozoa. Adverse effects of Acorus calamus are not clear. It is recommended to use the drug under the guidance of the doctor’s diagnosis, not self-medication, so as not to delay the condition.