气平，味甘、苦，甘寒。甘苦而淡，甘重于苦，阳也。无毒。
入足太阳经、少阴
《象》云∶除湿。比诸淡渗药大燥，亡津液，无湿证勿服。去皮用。
《心》云∶苦以泄滞，甘以助阳，淡以利窍。故能除湿，利小便。
《珍》云∶利小便。
《本草》云∶主 疟，解毒蛊疰不祥。利水道，能疗妊娠淋，又治从脚上至腹肿，小便
不利。仲景，少阴渴者猪苓汤。入足太阳、少阴。
《衍义》云∶行水之功多，久服必损肾气，昏人目。果欲久服者，更宜详审。
气平，味淡。味甘而淡，阳也。无毒。
白者，入手太阴经、足太阳经，少阳经；
《象》云∶止渴，利小便，除湿益燥，和中益气，利腰脐间血为主。治小便不通，溺黄
而赤或不利。如小便利或数服之，则大损人目。如汗多人服之，损真气，夭人寿。医云赤泻
白补，上古无此说。去皮用。
《心》云∶淡能利窍，甘以助阳，除湿之圣药也。味甘平，补阳，益脾逐水。湿淫所胜
，小便不利。淡味渗，泄阳也。治水缓脾，生精导气。
《珍》云∶甘，纯阳。渗泄止渴。
《本草》云∶胸胁逆气，忧恚惊邪恐悸，心下结痛，寒热烦满，咳逆，口焦舌干。利
小便，止消渴，好唾，大腹淋沥，消膈中痰水，水肿，淋结。开胸腑，调脏气，伐肾邪，长
阴，益气力，保神守中。
《液》云∶入足少阴，手足太阳。色白者，入辛壬癸；赤者，入丙丁。伐肾邪，小便多
，能止之；小便涩，能利之。与车前子相似，虽利小便而不走气。酒浸，与光明朱砂同用，
能秘真。味甘、平，如何是利小便。
气味平和，味甘、苦，性甘寒。味属甘苦且淡，其中甘味重于苦味，属性为阳。无毒。
归入足太阳经、足少阴经。
《汤液本草·象》记载：具有除湿功效。与其他的淡渗利湿药相比，它较为燥烈，容易耗伤津液，没有湿证的患者不要服用。使用时需去皮。
《汤液本草·心》记载：苦味能泄除滞气，甘味能助长阳气，淡味能通利窍道。因此能够除湿，通利小便。
《汤液本草·珍》记载：通利小便。
《本草》记载：主治疟疾，解毒蛊疰（一种由虫毒引起的积聚病）及不祥之气。通利水道，能治疗妊娠期间的小便淋沥涩痛，又治疗从脚部向上蔓延至腹部的肿胀，以及小便不利。张仲景在少阴病口渴时，使用猪苓汤。药物归入足太阳经、足少阴经。
《衍义》记载：行水利湿的功效较多，长期服用必定损伤肾气，使人视力昏花。如果确实想长期服用，更应仔细审慎。
气味平和，味淡。味甘而淡，属性为阳。无毒。
白色的茯苓，归入手太阴经、足太阳经、足少阳经；
《汤液本草·象》记载：止渴，通利小便，以除湿益燥、调和中焦、补益元气、通利腰脐间气血为主要功效。治疗小便不通，尿液黄赤或排尿不畅。如果小便本来通畅或多次服用，则会严重损害人的视力。如果出汗多的人服用，会损伤真气，折损寿命。医生常说“赤茯苓泻，白茯苓补”，上古时期并没有这种说法。使用时需去皮。
《汤液本草·心》记载：淡味能通利窍道，甘味能助长阳气，是除湿的圣药。味甘平，补益阳气，健脾逐水。湿气过盛导致的小便不利。淡味渗透，泄除阳邪。调理水湿以舒缓脾气，生成精气，引导气机运行。
《汤液本草·珍》记载：味甘，纯阳之性。渗透泄浊，止渴。
《本草》记载：治疗胸胁逆气，忧愁愤怒、惊骇恐惧悸动，心下结聚疼痛，寒热烦闷，咳嗽气逆，口焦舌干。通利小便，止消渴，减少唾液分泌，治疗大腹部淋沥积水，消除膈膜中的痰饮水湿，水肿，淋证结聚。开通胸腑，调理脏气，攻伐肾邪，滋养阴精，益气力，安神守中。
《汤液本草·液》记载：归入足少阴经，手太阳经，足太阳经。颜色白的，归入辛、壬、癸（金、水）经；颜色红的，归入丙、丁（火）经。攻伐肾邪，小便过多时能止住它；小便涩滞时能通利它。与车前子相似，虽然通利小便但不耗散气机。用酒浸泡，与光明朱砂同用，能固秘真元。味甘、平，为什么说它能通利小便。
Nature is neutral, taste is sweet and bitter, property is sweet-cold. The taste is sweet, bitter, and bland, with the sweet flavor predominating over the bitter, thus belonging to Yang. Non-toxic.
Enters the Foot-Taiyang (Bladder) Meridian and Foot-Shaoyin (Kidney) Meridian.
*Li Xiang* states: Eliminates dampness. Compared to other bland-draining herbs, it is relatively drying and depletes body fluids; do not use if there are no signs of dampness. Use after removing the skin.
*Li Xin* states: Bitter flavor drains stagnation, sweet flavor assists Yang, and bland flavor benefits orifices. Therefore, it can eliminate dampness and promote urination.
*Li Zhen* states: Promotes urination.
*Bencao* states: Primarily treats malaria, detoxifies gu-zhu (accumulation caused by insect toxins) and inauspicious pathogens. Benefits water passages, can treat strangury during pregnancy, and also treats edema spreading from the feet up to the abdomen, accompanied by difficult urination. Zhang Zhongjing uses Zhu Ling Tang (Polyporus Decoction) for Shaoyin disease with thirst. Enters the Foot-Taiyang and Foot-Shaoyin meridians.
*Yanyi* states: Its function in promoting water metabolism is significant; long-term consumption will inevitably damage Kidney Qi and impair vision. If one insists on long-term use, careful consideration is necessary.
Nature is neutral, taste is bland. Sweet and bland in taste, thus belonging to Yang. Non-toxic.
White Poria enters the Hand-Taiyin (Lung) Meridian, Foot-Taiyang (Bladder) Meridian, and Foot-Shaoyang (Gallbladder) Meridian.
*Li Xiang* states: Stops thirst, promotes urination, eliminates dampness and benefits dryness, harmonizes the Middle Jiao and supplements Qi, and primarily benefits blood circulation between the waist and umbilicus. Treats urinary retention, yellow and red urine, or difficult urination. If urination is already free or if taken repeatedly, it severely damages vision. If taken by those who sweat excessively, it damages True Qi and shortens lifespan. Physicians say "Red Poria drains, White Poria tonifies," but this saying did not exist in ancient times. Use after removing the skin.
*Li Xin* states: Bland flavor benefits orifices, sweet flavor assists Yang; it is a supreme herb for eliminating dampness. Sweet and neutral in taste, it tonifies Yang, strengthens the Spleen, and drives out water. It treats difficult urination caused by excessive dampness. Bland flavor penetrates and drains Yang pathogenic factors. It regulates water to soothe Spleen Qi, generates essence, and guides Qi movement.
*Li Zhen* states: Sweet in taste, pure Yang. Penetrating and draining, stops thirst.
*Bencao* states: Treats rebellious Qi in the chest and hypochondrium, sorrow, anger, fright, and palpitations; knotting pain below the heart; alternating chills and fever, vexation, and fullness; coughing and rebellious Qi; scorched mouth and dry tongue. Promotes urination, stops xiao-ke (wasting-thirst), reduces salivation, treats abdominal distension with dripping fluid, eliminates phlegm-fluid retention in the diaphragm, edema, and strangury accumulation. Opens the chest and fu organs, regulates Zang organ Qi, attacks Kidney pathogenic factors, nourishes Yin, supplements Qi and strength, and calms the Spirit while maintaining centrality.
*Ye* states: Enters the Foot-Shaoyin (Kidney) Meridian, Hand-Taiyang (Small Intestine) Meridian, and Foot-Taiyang (Bladder) Meridian. White ones enter the Xin, Ren, Gui (Metal, Water) meridians; red ones enter Bing, Ding (Fire) meridians. Attacks Kidney pathogenic factors; stops excessive urination; promotes urination when it is obstructed. Similar to Che Qian Zi (Plantago Seed), although it promotes urination, it does not disperse Qi. Soaked in wine and used together with Guang Ming Zhu Sha (Cinnabar), it can secure the True Yuan. Sweet and neutral in taste; how does it promote urination?