味甘淡，性平，无毒。入肾、膀胱二经。去皮。
分消水肿，淡渗湿痰。
猪苓感枫根之余气而成，利水诸药，无如此诀。
寇宗 曰∶“多服猪苓，损肾昏目。”洁古云∶“淡渗，亡津液，无湿证者勿服。”
味甘、咸，性微寒，无毒。入肾、膀胱二经。畏文蛤。
去皮、酒润，焙。
利水泄热，渗湿通淋。若与白术配合，涤饮平眩甚妙。伍于六味之中，补泻相辅而行。
李时珍曰∶泽泻利水泄下。脾胃有湿热，则头重而目昏耳鸣。泽泻渗去其湿，则热亦随
去，
而土气得令，清气上行，使人明爽，故有治头眩、聪明耳目之功。若久服，则降令太过，清
气不升，真阴潜耗，安得不目昏耶。
泽泻善泻，古称补虚者，误矣。扁鹊谓其害眼者，确也。病患无湿，肾虚精滑，目
虚不
明，切勿轻与。
味苦，性寒，无毒。入脾、胃、肝、胆、膀胱五经。
理黄胆而除湿热，佐五苓而利小肠。
茵陈去湿热，独宜于五疸，然亦须五苓之类，佐助成功。湿热上干，口舌生疮，甘露饮
中用
之。后世普治暑湿内蕴，时毒项肿等之甘露消毒丹中，亦用之。
用茵陈者，中病即已，若过用之，元气受贼。
味苦，性寒，无毒。入肝、胆、膀胱三经。
解烦热，除黄胆。涂漆疮，洗赤眼。
即北京香山红叶也，清利湿热，兼能解毒，故主用如上。
味甘、淡，性平，无毒。归肾经、膀胱经。需去皮使用。
能分消水肿，淡渗湿痰。
猪苓（Polyporus）因感应枫树根之余气而成，在利水药物中，没有比它更精妙的了。
寇宗奭说：“多服猪苓，会损伤肾脏，导致视力模糊。”洁古（张元素）说：“淡渗之品，会耗伤津液，无湿证者不要服用。”
味甘、咸，性微寒，无毒。归肾经、膀胱经。畏文蛤。
需去皮、酒润后焙干。
能利水泄热，渗湿通淋。若与白术配合，涤除饮邪、平息眩晕效果极佳。配伍于六味地黄丸中，补益与泻浊相辅而行。
李时珍说：泽泻（Alisma Orientale）利水泄下。脾胃有湿热，则头重而目昏耳鸣。泽泻渗去其湿，则热亦随去，而土气得令，清气上行，使人明爽，故有治头眩、聪明耳目之功。若久服，则降令太过，清气不升，真阴潜耗，安得不目昏耶。
泽泻善泻，古称补虚者，误矣。扁鹊谓其害眼者，确也。病患无湿，肾虚精滑，目虚不明，切勿轻与。
味苦，性寒，无毒。归脾经、胃经、肝经、胆经、膀胱经。
理黄疸而除湿热，佐五苓散而利小肠。
茵陈（Artemisiae Scopariae Herba）去湿热，独宜于五疸，然亦须五苓散之类，佐助成功。湿热上干，口舌生疮，甘露饮中用之。后世普治暑湿内蕴，时毒项肿等之甘露消毒丹中，亦用之。
用茵陈者，中病即已，若过用之，元气受贼。
味苦，性寒，无毒。归肝经、胆经、膀胱经。
解烦热，除黄疸。涂漆疮，洗赤眼。
即北京香山红叶也，清利湿热，兼能解毒，故主用如上。
Taste: sweet, bland; Nature: neutral; Toxicity: non-toxic. Meridian tropism: Kidney meridian, Bladder meridian. Preparation: peel off the skin.
Action: Distribute and eliminate edema, lightly leach out damp-phlegm.
Origin: Polyporus (Zhu Ling) is formed by sensing the residual qi of maple roots. Among diuretic herbs, none is more exquisite than this one.
Commentary: Kou Zongshi stated: "Excessive consumption of Polyporus damages the Kidney and causes blurred vision." Jiegu (Zhang Yuansu) stated: "Lightly leaching agents deplete body fluids; those without dampness patterns should not take it."
Taste: sweet, salty; Nature: slightly cold; Toxicity: non-toxic. Meridian tropism: Kidney meridian, Bladder meridian. Incompatibility: opposes Arca Shell (Wen Ge).
Preparation: peel off the skin, moisten with wine, and bake dry.
Action: Promote urination to drain heat, leach out dampness to relieve strangury. When combined with Atractylodis Macrocephalae Rhizoma (Baizhu), it excellently eliminates fluid retention and calms vertigo. When incorporated into Liuwei Dihuang Wan, tonification and purgation support each other.
Li Shizhen stated: Alisma Orientale (Zexie) promotes urination and drains downward. When damp-heat exists in the Spleen and Stomach, the head feels heavy, vision is blurred, and tinnitus occurs. Alisma leaches out the dampness, so the heat follows and departs; thus, Earth Qi functions properly, clear Yang ascends, making the person feel bright and refreshed. Therefore, it has the merit of treating vertigo and improving hearing and vision. However, long-term use causes excessive descending action, preventing clear Yang from ascending, secretly consuming True Yin, leading inevitably to blurred vision.
Alisma excels at draining; ancient claims that it tonifies deficiency are erroneous. Bian Que's assertion that it harms the eyes is accurate. For patients without dampness, or with Kidney deficiency causing seminal emission and blurred vision due to deficiency, do not prescribe it lightly.
Taste: bitter; Nature: cold; Toxicity: non-toxic. Meridian tropism: Spleen meridian, Stomach meridian, Liver meridian, Gallbladder meridian, Bladder meridian.
Action: Regulate jaundice and remove damp-heat, assist Wu Ling San to promote small intestine function.
Usage: Artemisiae Scopariae Herba (Yinchen) removes damp-heat and is particularly suitable for the five types of jaundice. However, it also requires assistance from formulas like Wu Ling San to achieve success. When damp-heat harasses upward causing mouth and tongue ulcers, it is used in Ganlu Yin. Later generations commonly used it in Ganlu Xiaodu Dan to treat summer-dampness internal accumulation and toxic swelling of the neck.
Caution: Use Artemisiae Scopariae Herba only until the disease is cured; excessive use will damage Yuan Qi (Primary Qi).
Taste: bitter; Nature: cold; Toxicity: non-toxic. Meridian tropism: Liver meridian, Gallbladder meridian, Bladder meridian.
Action: Relieve vexing heat, eliminate jaundice. Apply externally for lacquer dermatitis, wash for red eyes.
Identity: It is the red leaves of Fragrant Hills in Beijing. It clears and promotes the removal of damp-heat and possesses detoxifying properties, hence its primary uses as described above.