【Nature and flavor】Salty, warm in nature.
 [return through meridians] Returns to the kidney meridian.
 【Effects】Warms the kidney and strengthens yang.
 [Indications] Kidney yang deficiency, cold numbness of waist and knees, impotence and spermatorrhea in men, infertility due to uterine coldness in women, metrorrhagia, and abdominal masses.
 【Medical records】
 "Ben Jing": "It is used to treat metrorrhagia, uterine bleeding, blood in the uterus, abdominal pain caused by heat and cold, impotence, and to replenish deficiency."
 "Bie Lu": "It can treat coldness of the penis head, dampness and itching under the genitals, remove odorous sweat, and eliminate edema."
 "Medicinal Properties": "It can nourish the kidney, treat deficiency of qi and essence, waist pain, cold knees, dampness and arthritis, warm the long-term cold uterus of women, treat cold syndrome and cold masses, and stop irregular menstruation."
 "Rihuazi Bencao": "It treats leucorrhea, epidemic fever, cold, and replenishes the five kinds of fatigue and seven kinds of injuries."
 Wang Haogu: "Replenish the deficiency of the vital gate."
 "Introduction to Medicine": "It can help boost the yang energy of the human body and treat male yang deficiency."
 "Compendium of Materia Medica": "Disperse various heat swellings."
 "Yuchu Yaojie": "It can treat cold hernia."
 【Predecessors release medicine】
 "Compendium of Materia Medica": Yangqi stone is suitable for people with coldness in the lower part of the body, but it is not suitable for long-term use. Zhang Zihe's "Rumen Shiqin" says: Throat paralysis is rapid, it is a disease of Xianghuo, Xianghuo is dragon fire, it should be driven away with fire. A man was suffering from throat wind swelling, both inside and outside, and medicine could not be taken. He poured cold medicine into his nose, and went down more than ten lines. He burned Yangqi stone and Fulong liver in equal parts, grinded them into very fine powder, and swept them with fresh water a hundred times a day. After three days, the fever began to subside and the swelling began to disappear. This is also the way of treatment.
 "Ben Cao Jing Shu" says: "Acanthizite is a holy medicine that supplements Yang Qi and removes the accumulation of cold and blood in the lower Jiao. Therefore, it can cure metrorrhagia, blood disease in the viscera, abdominal pain caused by cold and heat, cold penis head, impotence, and itchy and wet under the genitals. When the true Yang is sufficient, the Qi of the five internal organs is full and the evil and damp Qi is dispersed. Therefore, it can also remove odor and sweat. "Bie Lu" also says that it can eliminate edema, which means that the true fire returns to the origin, which can warm the lower Jiao to fumigate the dregs, transform the essence, and help the spleen and earth to control water.