【Nature and flavor】Sweet, neutral in nature.
 [return through meridians] returns spleen, stomach and large intestine meridians.
 【Effects】Lubricates the intestines and promotes bowel movements.
 [Indications] Used for blood deficiency, body fluid deficiency, dry intestines and constipation.
 【Usage and Dosage】10-15g.
 【Medical records】
 "Ben Jing": "Replenish the middle and replenish qi."
 "Bie Lu": "It is used to treat stroke, sweating, diuresis, blood stasis, blood circulation, and residual diseases of nursing mothers after childbirth."
 "Medicine Properties": "It treats wind-heat and dampness in the large intestine and pyrexia."
 "Tang Materia Medica": "It cures five kinds of fatigue."
 "Dietary Therapy Materia Medica": "Take the juice and cook it into porridge, which can remove wind from the five internal organs and moisten the lungs. It can also treat joint obstruction, hair loss, and unclog the blood vessels."
 "Compendium of Materia Medica" says: "It can relieve gas, promote urination, and remove rheumatism and skin stubbornness. Fry until fragrant and crush, soak in urine to extract the juice and drink it; women can swallow 27 pieces for postpartum women."
 "Rihuazi Materia Medica": "It can replenish the body's deficiency, grow muscles, promote lactation, stop thirst, and induce labor. It can also treat transverse or anaerobic labor."
 "Compendium of Materia Medica": "It benefits women's meridians, regulates large intestine diarrhea; it can be applied to sores and scabies to kill insects; the juice can be used to cook porridge and stop vomiting."
 "Classification of Herbal Properties": "It can treat injuries from falls, remove blood stasis, and generate new blood."
 【Predecessors release medicine】
 "Shang Han Ming Lun Lun": "Neijing" says that if the spleen wants to relax, eat something sweet to relax it. Hemp seeds and almonds can moisten things. "Ben Cao" says that moisture can remove dryness. If the spleen and stomach are dry, sweet and moist things must be the main thing.
 "Ben Cao Jing Shu" says: Hemp seeds are the most slippery. Sweet can nourish the middle, and when the middle is nourished, the qi will naturally benefit. Sweet can nourish the blood, and when the blood vessels are restored, the blood will be broken, and all the remaining diseases of nursing mothers after childbirth will be eliminated. When wind is combined with the Wei, the Wei will be strong and the Rong will be weak. Rong refers to blood and Yin. The "Classic" says that those with weak Yin will sweat spontaneously. Hemp seeds can nourish blood and Yin, so that the Rong and Wei can be harmonized, and the wind evil will be removed and the sweat will stop. Those who expel water and facilitate urination are slippery and downward, leading the water vapor out through urination.
 "Pharmaceutical Chemistry": Hemp seed can moisten the intestines, moisten the body and remove dryness. It is specially used to treat large intestine qi stagnation and constipation. It can treat dry blood in the elderly, poor blood flow after childbirth, unrecovered vitality after illness, or inability to function due to weakness. If the large intestine is blocked, it should not be pushed or allowed to be blocked for a long time. Use this with aster and apricot kernel to moisten the lung qi and nourish the large intestine, and then the bowel movement will be smooth.
 "Compendium of Materia Medica" says: Hemp seed is not a blood medicine but has the function of transforming blood, it does not benefit qi but has the function of promoting qi, so it is most suitable for treating wind and dryness in the large intestine. Hemp seed treats wind, but it belongs to the wind in the blood, not just wind. The reason why it treats wind is that it moistens and removes dryness, which is because the extreme yang promotes the transformation of the extreme yin, not just moistening.
 "Compendium of Materia Medica": Zhongjing Ma Ren Wan syndrome is that the spleen is constrained and uncomfortable due to the strong stomach. Therefore, the spleen cannot disperse essence to the lungs, and the descending order of the lungs is also lost. The lungs, spleen and stomach are both trapped, so how can the stool go down? Ma Ren is sweet, smooth and smooth, soft but firm, and can enter the spleen to nourish its yin and fluid and transform its dryness. However, the spleen is constrained, and the hard knots in it can be seen. Ma Ren can expand it but cannot break it. Peony is a spleen qi medicine that breaks the blood. If they are used together, the spleen will be almost unrestrained. The spleen is constrained due to the strong stomach. How can the spleen be treated without also treating the stomach? The stomach does not descend alone, but has benefits for the lungs, so how can the lungs be ignored? Therefore, rhubarb, bitter orange, and Pu are used to attack the stomach, and apricot kernels suppress the lungs. The disease originates from the stomach, and those who label it as spleen constrained use this as Taiyang Yangming instead of Zhengyang Yangming. Because of Taiyang, urination is frequent, and defecation is difficult because of frequent urination. The treatment method is mainly to raise the spleen yin and transform dryness. The dryness will be eliminated and the Taiyang meridian will heal itself without treatment, so hemp seed is an important medicine.