[return through meridians] Returns to the bladder meridian.
 【Function】It can eliminate rheumatism and dredge meridians.
 [Indications] It is used for rheumatic pain, numbness of limbs, spasm of tendons and veins, and difficulty in flexion and extension.
 [Contraindications] This product is pungent and dispersing. Long-term use may damage the vital energy. People with weak qi and blood, and those without wind, cold or dampness should take it with caution.
 【Medical records】
 "Tang Materia Medica": "It is effective for all kinds of cold diseases in the waist, kidneys, feet and knees, accumulation, and intestines that have not been cured for years."
 Kaibao Materia Medica: "It cures all kinds of wind, clears the five internal organs, removes cold stagnation in the abdomen, treats long-term accumulation of phlegm and water in the heart, treats lumps, eczema, tinea, gas masses, bladder pus and water, cold pain in the waist and knees, and treats fractures."
 "Compendium of Materia Medica": "It can treat intestinal wind."
 "Compendium of Materia Medica Yanyi Buyi" says: "Those who have pain in the upper part of the body should take this medicine."
 "Ben Jing Feng Yuan" says: "When the smallpox poison is blocked in the upper part and cannot be discharged downwards, and the poison is slow to flow from the waist, shins and knees, it can be used to draw it downwards."
 【Predecessors release medicine】
 "Compendium of Materia Medica" states: "Clematis chinensis is good at moving around and eliminating diseases. It is suitable for treating dampness, phlegm, blood stasis and qi stagnation. It has a slightly spicy taste, so it is also said to dispel wind. However, it is suitable for treating diseases caused by the retention of wind, cold and dampness in the meridians and joints, and other diseases. It is quite sharp in nature, so the meaning of the name can be imagined. However, the "Biography of Clematis chinensis" written by a Tang Dynasty writer actually said that it can treat aphasia caused by stroke, paralysis of hands and feet, crooked mouth and eyes, etc., which makes people misunderstand.
 "Compendium of Materia Medica": Clematis chinensis has a warm nature and a slightly pungent and salty taste. Pungent taste releases qi, while salty taste releases water. Therefore, it is effective for people with strong qi to take it for rheumatism, phlegm and fluid. Its nature is generally laxative, and long-term use may damage the true qi. People with weak qi should not take it either.
 "Ben Cao Jing Shu": Clematis root cures all kinds of wind, and is the best wind medicine for guiding and moving. Cold stagnation in the abdomen is mostly due to cold and dampness, phlegm and water in the heart and diaphragm, which is the retention of fluid in the upper and middle Jiao. Wind can overcome dampness. Dampness diseases like dryness, so it cures it. Bladder pus and bad water are all caused by dampness. Cold pain in the waist and knees is also caused by dampness flowing down and invading the tendons. Remove wind and dampness, and the disease will go away. It is said that long-term accumulation of diseases, lumps, gas masses and fractures. There are more diseases in the blood, less in the qi, and it is not necessarily due to dampness. It may not be appropriate to use it, so it is better to take it in moderation.
 "Pharmaceutical Chemistry": Lingxian, fierce and urgent in nature, moves without staying, and dredges the twelve meridians. It is mainly used to treat wind, dampness, phlegm, and stagnation in the meridians, which lead to gout, pain in the joints, or swelling, or numbness. If the wind prevails, the disease is in the upper part, and if the dampness prevails, the disease is in the lower part. The two are suppressed for a long time and turn into blood heat. Blood heat is the root, and phlegm is the symptom. It can dredge the meridians, and blood stagnation and phlegm obstruction will be relieved immediately. If the hands and feet are paralyzed by a stroke, it can be used to assist other medicines to dredge the airway. Mix with wine to treat pain in both buttocks. Because of its fierce power, it can also soften bones. It can be used together with Chuanxiong, Gui, Guijia, and Xueyu to treat the failure of the pubic bones to open during childbirth. The effect is as good as the effect.