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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?