【Nature and flavor】Sweet, warm in nature.
 [return through meridians] returns to the heart and spleen meridians.
 【Effects】Nourishes the heart and spleen, replenishes qi and blood, strengthens the spleen and stomach, and nourishes muscles.
 [Indications] Overthinking can damage the spleen, dizziness, insufficient qi and blood, forgetfulness and insomnia, palpitations, weakness, blood deficiency and sallow complexion. Physical weakness after illness or childbirth, and blood loss due to spleen deficiency.
 【Usage and Dosage】9-15g.
 【Medical records】
 "Bie Lu": "It is mainly used to calm the mind and reduce appetite."
 "Compendium of Materia Medica": "It stimulates appetite, benefits the spleen, replenishes deficiency and improves wisdom."
 "Sui Xi Ju Diet" says: "Longan is sweet and warm, nourishes spleen yin, and replenishes fluid."
 "Shennong's Herbal Classic" records that longan "can strengthen the soul, make one smart, and keep one light and young if taken for a long time."
 "Description of Southern Plants and Trees" states that "Emperor Wen of Wei summoned his ministers and said: The authentic fruits of the south include longan and lychee."
 【Predecessors release medicine】
 "Southern Yunnan Materia Medica": Longan. Mainly used to nourish blood and calm the mind, improve wisdom and reduce sweating, remove poison, remove evil spirits from the five internal organs, and stimulate appetite and benefit the spleen. Children who have not been weaned should not collect the shells and grind them into powder. It is used as a medicine for knife wounds, which can heal the wound the fastest. Collect the leaves and dry them into powder. Apply them to the seven points of the child's acne. When there is a smallpox, only a few spots will appear. It also removes fetal toxins. It is also best to give children seven leaves. Collect the core and grind it into powder. It can be dispersed to treat goiter.
 "New Compendium of Materia Medica": Longan meat is sweet, mild, and non-toxic. It enters the spleen and heart meridians. It can detoxify and remove parasites, calm the mind, nourish muscles, beautify the complexion, eliminate forgetfulness, and relieve palpitations. Taking more will strengthen the soul and make you smarter, and taking it for a long time will make you light and young. This fruit is the most beneficial to people. It is used as medicine, but it is only for the spleen and heart. If it is soaked in wine and taken, it is very beneficial to nourish. It is better to soak it in wine with wine that replenishes qi and blood. Someone asked if it is appropriate to eat the meat of longan meat when boiling it in soup, fearing that it will cause laxative effects? I don't know that longan is not a laxative. But avoid eating too much, otherwise the large intestine will be insufficient. Someone asked why longan meat is used in Guipi Decoction, is it because it nourishes the spleen? What is Guipi Decoction? It is not a medicine for strengthening the spleen, but it must rely on longan meat. Longan meat can actually reconcile various medicines and distribute them to the heart, liver, spleen, and stomach, not only specifically entering the heart and liver.
 【Use of ancient prescription】
 Great tonic for Qi and blood: Peel the longan and put it in a bamboo tube porcelain bowl. Add one ounce of meat and one qian of white sugar. If you have a hot body, add American ginseng slices, the same amount of sugar. Cover the bowl with a layer of cotton wool and steam it in a rice cooker every day until it is steamed a hundred times. For the weak, old and frail, and those who do not have other diseases such as phlegm, fire and loose stools, take one spoonful of it with boiling water. It is a great tonic for Qi and blood, and is more effective than ginseng and astragalus. It is especially good for women who are about to give birth. (Yuling Paste from "Suixiju Diet")
 Treats excessive thinking, fatigue of the heart and spleen, forgetfulness, palpitations: Atractylodes macrocephala, Poria cocos (without wood), Astragalus membranaceus (without stem), Longan flesh, Ziziphus jujuba seeds (fried, shell removed) 1 liang each, Ginseng, Aucklandia lappa (not exposed to fire) 0.5 liang each, Licorice root (roasted) 2.5 qian. Grind the above ingredients, take 4 qian each time, add 1.5 cups of water, 5 slices of ginger, 2 jujubes, boil for 7 minutes, remove the residue and take warm, any time. (Gui Pi Tang in Ji Sheng Fang)