Uncaria rhynchophylla is a Chinese patent medicine. Taking this medicine can clear away heat and soothe the nerves, calm the liver and calm the wind. Can be used for treating headache, dizziness, deafness, tinnitus, insomnia and dreaminess. The side effects of this drug are relatively small, and it will not have adverse negative effects on patients' renal function. If you feel uncomfortable during taking it, you should stop taking it and go to the hospital.