〔害〕性与槟榔相似，病患稍涉虚者，概不可用。
〔利〕辛微温，泄脾下气，宽胸行水，通大小肠，治水肿、香港脚、痞胀、痰膈、瘴疟。
〔修治〕去子洗净，如绒，用其子，近今肆中，伪充槟榔入药。孙思邈曰∶“鸩鸟多栖
槟榔
树上，凡用槟榔大腹子皮，宜先以酒洗，以大豆汁再洗过，晒干入灰火烧煨，切用。
〔害〕辛温大热，性专消导，散而不收，脱人元气，略无补益之功。故凡呕吐不因寒痰
冷积
，而由于胃虚火气炎上；腹痛因于血虚脾阴不足，而非停滞所致；泄泻因于火热暴注，而非
积寒伤冷；腹满因于中气不足，气不归元，而非气实壅滞；中风由于阴虚火炎，猝致僵仆，
而非西北真中风；寒邪伤寒发热头痛，而无痞寒胀满之候；小儿吐泻乳食，将成慢惊；大人
气虚血槁，延为膈症；老人脾虚不能运化，偶有停积；娠妇恶阻，水谷不入，娠妇胎气升眩
晕，娠妇伤食停冷，娠妇腹痛泻痢，娠妇伤寒伤风，产后血虚腹痛，产后中满作喘，产后泄
泻反胃；以上诸症，法所咸忌。若误投之，轻病变重，重病必危。不究其源一概滥用，虽一
时未见其害，而清纯冲和之气，默为之耗，娠妇服之，大损胎元，可不慎哉。恶硝石泽泻
，忌豆。
〔利〕苦降能泻实满，辛温能散湿满。入脾胃二经，平胃气，调中，消痰，化食，行结
水，
破宿血，散风寒，调胸腹而止痛，杀脏虫，治反胃，呕逆喘咳，泻利冷痛共主，乃结者散之
之药也。干姜为使。
〔修治〕七八月采之，味甘美，取皮阴干，姜汁炒，刮去粗皮，用生姜汁炒炙，或浸炒
用。
味苦，不以姜制，则棘喉舌。梓州龙州者为上，皮极鳞皱而紫色多润，味辛者佳。薄而白者
，不堪入药。
[Da Fu Pi (Areca Peel)]
[Harm] Its nature and properties are similar to Betel Nut (Binlang). For patients with any degree of deficiency, it should generally not be used.
[Benefit] Pungent and slightly warm; it drains spleen qi downward, expands the chest and promotes water metabolism, unblocks the large and small intestines, and treats edema, Hong Kong foot (a condition characterized by swelling and pain in the feet), fullness and distension, phlegm obstruction in the chest and diaphragm, and malarial fevers.
[Processing] Remove the seeds and wash clean; it resembles velvet. If using the seeds, modern pharmacies often pass them off as Betel Nut for medicinal use. Sun Simiao said: "Vulture birds often perch on Betel Nut trees. When using Betel Nut, Da Fu Zi (Areca Seed), or Da Fu Pi, one should first wash with wine, then wash again with soybean juice, dry in the shade, roast in ashes until charred, slice, and use."
[Nong Mu (Magnolia Bark)]
[Harm] Pungent and warm, with a strong heating nature. Its action is specialized in digestion and guiding out stagnation; it scatters without retaining, depletes the body's primordial qi, and has no tonifying effect. Therefore, vomiting not caused by cold-phlegm or cold accumulation, but due to stomach deficiency with flaming fire qi rising; abdominal pain due to blood deficiency and insufficient spleen yin, rather than stagnation; diarrhea due to sudden violent heat, rather than cold accumulation injuring the cold; abdominal fullness due to insufficiency of middle qi with qi failing to return to its source, rather than excess qi stagnation; stroke due to yin deficiency with flaming fire causing sudden collapse and rigidity, rather than true wind-stroke from the northwest; fever and headache from contracting cold pathogens without symptoms of cold fullness and distension; infants suffering from vomiting and diarrhea of milk and food, about to develop slow convulsions; adults with qi deficiency and dried blood progressing to esophageal obstruction (Ge Zheng); elderly people with spleen deficiency unable to transform and transport, occasionally having stagnation; pregnant women with morning sickness unable to keep down food and water; pregnant women with fetal qi rising causing dizziness and vertigo; pregnant women with food stagnation and cold retention; pregnant women with abdominal pain, diarrhea, and dysentery; pregnant women with cold damage or wind strike; postpartum women with blood deficiency and abdominal pain; postpartum women with middle jiao fullness and wheezing; postpartum women with diarrhea and regurgitation—all these conditions are strictly contraindicated according to medical principles. If mistakenly administered, mild diseases become severe, and severe diseases become critical. Without investigating the root cause and abusing it indiscriminately, although harm may not be immediately visible, the pure and harmonious qi is silently consumed. Pregnant women taking it severely damages the fetal origin; can one not be cautious? It is incompatible with Niter (Xiaoshi) and Alisma (Zexie), and avoids beans.
[Benefit] Bitter and descending can purge excess fullness; pungent and warm can scatter dampness-induced fullness. Enters the Spleen and Stomach meridians; it calms stomach qi, regulates the middle, resolves phlegm, transforms food, moves stagnant water, breaks old blood, disperses wind-cold, regulates the chest and abdomen to relieve pain, kills intestinal parasites, treats regurgitation, vomiting, reverse flow, wheezing, cough, diarrhea, and cold pain. It is the primary herb for these conditions, representing the method of "scattering what is knotted." Dried Ginger (Ganjiang) serves as an assistant herb.
[Processing] Harvest in the seventh and eighth months when the taste is sweet and pleasant. Take the bark, dry in the shade, stir-fry with ginger juice, scrape off the rough outer skin, stir-fry or roast with fresh ginger juice, or soak and stir-fry before use.
It tastes bitter. If not processed with ginger, it will irritate the throat and tongue. The variety from Longzhou in Zizhou is superior; the bark is extremely scaly and wrinkled, purplish, moist, and pungent in taste, which is good. Thin and white bark is unsuitable for medicinal use.