古字作楂。泻、破气消食、化痰散瘀。
酸甘微温。健脾行气。消食磨积。（善去腥膻油腻之积、与麦芽消谷积者不同、凡煮老
鸡、
硬肉、投数枚、则易烂、其消肉积可知。）散瘀化痰。发小儿痘疹。行乳食停留。止儿枕作
痛。（恶露积于太阴、少腹作痛、名儿枕痛、砂糖调服。）疗小肠疝气。茴香佐之。）多食令
人嘈烦易饥。反伐脾胃生发之气。（凡服人参不相宜者、服山楂即解、一补气、一破气也。）
胃中无积。及脾虚恶食者。忌服。有大小二种。小者入药。一名棠球子。去皮核。（核亦有
用、化食磨积、治疝、催生。）
宣、理气调中、泻、燥湿、消痰。
辛能散，温能和，苦能燥能泻。为脾、肺气分之药。（脾为气母、肺为气龠、凡用补药
涩药
、有宜佐陈皮以利气者。）调中快膈。导滞消痰。（大法治痰、以健脾顺气为主、洁古曰∶陈
皮
定呕止嗽。利水破症。宣通五脏。统治百病。皆取其理气燥湿之
功。入和中药。则留白。入疏通药。则去白。去白名橘红。兼能除寒发表。（皮能发散皮肤
。）气虽中和。亦损真元。无滞勿用。广产为胜。皮浓不脆。有猪棕纹。（福建产者、名建皮
、力薄、浙江衢州出者、名衢皮、更恶劣矣。）陈久者良。故又名陈皮。（陈则烈气消、无燥
散之患、半夏亦然、故同用、名二陈汤。）治痰咳。童便浸晒。治痰积。姜汁炒。入下焦。
盐水炒。（化州陈皮、消痰甚灵、然消伐太峻、不宜轻用、况此物真者绝少、无非柚皮而已
。）
古字写作“楂”。具有泻下、破气、消食、化痰、散瘀的功效。
味道酸、甘，性微温。能健脾、行气。消除食物积滞。（善于去除因食用腥膻油腻食物导致的积滞，这与麦芽消除谷物积滞不同。凡煮老鸡或硬肉时，投入几枚山楂，肉便容易烂熟，由此可知其消除肉食积滞的能力。）散瘀化痰。促使小儿痘疹发出。促进乳汁和食物的运行，防止停滞。缓解产后儿枕痛。（恶露积聚于太阴经，导致少腹疼痛，称为儿枕痛，可用砂糖调服。）治疗小肠疝气。（可配伍茴香使用。）多食会导致心中嘈杂烦闷、容易饥饿，反而损伤脾胃的生发之气。（凡是服用参类补气药不相适宜的人，服用山楂即可缓解，因为人参补气，而山楂破气。）胃中没有积滞，以及脾虚食欲不振者，忌服。山楂有大、小两种，小的入药，又名棠球子。需去皮核。（核也有用处，可化食磨积，治疗疝气，催生。）
宣通、理气调中、泻下、燥湿、消痰。
辛味能发散，温性能调和，苦味能燥湿能泻下。是作用于脾、肺两脏气分的药物。（脾为气之母，肺为气之枢，凡使用补益药或收敛涩药时，若有需要佐以陈皮来利气的情况。）调理中焦，宽胸快膈。导除滞气，消除痰浊。（治疗痰证的大法，以健脾顺气为主。洁古先生曾说：陈皮能定呕止嗽，利水破症，宣通五脏，统治百病，都是取其理气燥湿的功效。在和中药中使用时，保留白瓤；在疏通药中使用，则去掉白瓤。去掉白瓤后名为橘红，兼有驱寒发表的功效。（皮能发散皮肤表邪。）药性虽平和，但也损耗真元。体内无滞气者勿用。以广地产者为佳。皮厚而不脆，有猪棕纹。（福建产的名为建皮，药效薄弱；浙江衢州产的名为衢皮，质量更差。）陈久的为好，所以又名陈皮。（陈久则烈气消退，没有燥散的隐患，半夏也是如此，故常同用，名为二陈汤。）治疗痰咳，用童便浸泡晒干；治疗痰积，用姜汁炒制；用于下焦，用盐水炒制。（化州陈皮，消痰非常灵验，但消伐之力太峻猛，不宜轻易使用，况且此物正宗的极少，无非是柚皮罢了。）
The ancient character is written as "Zha" (Shanzha). It has the effects of purging, breaking qi stagnation, digesting food, resolving phlegm, and dissipating blood stasis.
Its taste is sour and sweet, and its nature is slightly warm. It strengthens the spleen and promotes qi circulation. It eliminates food accumulation. (It is particularly effective in removing accumulations caused by greasy, fishy, or mutton-flavored foods, which differs from Maiya (Malt) that resolves grain accumulations. When boiling old chicken or tough meat, adding a few pieces makes the meat tender easily, demonstrating its ability to resolve meat accumulations.) It dissipates blood stasis and resolves phlegm. It promotes the eruption of infantile smallpox/rashes. It facilitates the movement of milk and food residues, preventing stagnation. It relieves postpartum epigastric pain known as "Erzhen Tong" (Child Pillow Pain). (This condition involves lochia accumulating in the Taiyin channel, causing lower abdominal pain; it can be taken with brown sugar for mixing.) It treats intestinal hernia. (It can be combined with Huixiang (Fennel Fructus).) Excessive consumption causes heartburn, restlessness, and easy hunger, and conversely damages the generating qi of the spleen and stomach. (For those who are incompatible with Ginseng Radix et Rhizoma (Renshen), taking Shanzha provides relief, as Renshen tonifies qi while Shanzha breaks qi.) Those without food accumulation in the stomach, and those with spleen deficiency and poor appetite, should avoid taking it. There are two types: large and small. The small ones are used medicinally, also known as Tangqiuzi (Crataegus fruit). The peel and core should be removed. (The core is also useful; it digests food, resolves accumulation, treats hernia, and induces labor.)
Xuan (Promoting circulation), regulating qi and harmonizing the middle jiao, purging, drying dampness, and resolving phlegm.
The pungent flavor disperses, the warm nature harmonizes, and the bitter flavor dries and purges. It is a herb acting on the qi level of the Spleen and Lung. (The Spleen is the mother of qi, and the Lung is the pivot of qi. Whenever using tonifying or astringent herbs, there are cases where Chenpi (Citrus reticulata Peel) is added as an assistant to facilitate qi flow.) It regulates the middle jiao and opens the chest diaphragm. It guides out stagnation and eliminates phlegm. (The general principle for treating phlegm focuses on strengthening the spleen and smoothing qi. Jiegu stated: Chenpi stops vomiting and cough, promotes urination, breaks masses, unblocks the five zang organs, and treats various diseases, all due to its functions of regulating qi and drying dampness. When used in harmonizing formulas, retain the white pith; when used in unblocking formulas, remove the white pith. Removing the white pith yields Juhong (Exocarpium Citri Reticulatae Rubrum), which additionally dispels cold and releases the exterior. (The peel can disperse pathogens at the skin level.) Although its nature is moderate, it also consumes true yuan (original qi). Do not use if there is no stagnation. Those produced in Guangdong are superior. The peel is thick and not brittle, with patterns resembling pig bristles. (Those produced in Fujian are named Jianpi (Jian Chenpi), with weak efficacy; those from Quzhou, Zhejiang, are named Qupi (Quzhou Chenpi), of even poorer quality.) Aged ones are better, hence the name Chenpi (Aged Peel). (Aging reduces the harshness, avoiding risks of excessive drying and dispersion; Banxia (Pinelliae Rhizoma) is similar, so they are often used together, forming Erchen Tang (Two-Aged Decoction).) For treating phlegm-induced cough, soak in children's urine and sun-dry; for treating phlegm accumulation, stir-fry with ginger juice; for targeting the lower jiao, stir-fry with salt water. (Huazhou Chenpi is very effective in resolving phlegm, but its dissolving and attacking power is too severe and should not be used lightly. Moreover, genuine Huazhou Chenpi is extremely rare; most are merely Pomelo peels.)