# Zhu Ling Tang (Polyporus Decoction)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/zhu-ling-tang-polyporus-decoction
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-27
**Evidence Score:** 4 / 10
**Category:** Traditional Chinese Medicine
**Also Known As:** Polyporus Decoction, Polyporus Combination, Zhu Ling San, Chorei-to, Three-Herb Diuretic Formula, Polyporus Formula, ZLT, 猪苓汤

## Overview

Zhu Ling Tang is a traditional Chinese herbal formula containing polyporus, alisma, and poria that promotes diuresis through aquaporin regulation and sodium excretion. The formula's triterpenes and polysaccharides enhance kidney function and reduce urinary tract [inflammation](/ingredients/condition/inflammation).

## Health Benefits

- Enhances kidney function by promoting diuresis. This aids in the elimination of toxins and excess fluids. - Supports urinary health by reducing the risk of infections. This helps maintain a healthy urinary tract. - Reduces [inflammation](/ingredients/condition/inflammation) by modulating immune response. This alleviates symptoms of chronic inflammatory conditions. - Boosts energy levels by optimizing fluid balance. This combats fatigue and enhances overall vitality. - Supports weight management by reducing water retention. This helps achieve a leaner [body composition](/ingredients/condition/weight-management). - Promotes detoxification by enhancing [liver function](/ingredients/condition/detox). This aids in the purification of the body. - Improves [skin health](/ingredients/condition/skin-health) by reducing puffiness and promoting circulation. This results in a clearer and more radiant complexion.

## Mechanism of Action

Zhu Ling Tang works by modulating aquaporin water channels in the kidneys, particularly AQP2, to increase water excretion. The triterpenes in polyporus and alisma inhibit sodium-potassium ATPase pumps, promoting electrolyte balance. Polysaccharides from poria activate complement pathways and reduce [inflammatory](/ingredients/condition/inflammation) cytokines IL-1β and TNF-α.

## Clinical Summary

Small clinical trials with 30-60 participants have shown Zhu Ling Tang increases urine output by 15-25% within 24 hours. A 2019 study found 40% reduction in urinary tract infection recurrence over 6 months compared to placebo. Most research consists of traditional use documentation and animal studies, with limited large-scale human trials. Evidence suggests efficacy for edema and urinary retention but requires more robust clinical validation.

## Nutritional Profile

Zhu Ling Tang is a classical TCM formula rather than a single ingredient, composed of five primary constituents: Polyporus umbellatus (Zhu Ling), Poria cocos (Fu Ling), Alisma orientalis (Ze Xie), Ejiao (Ass-hide gelatin), and Talcum (Hua Shi). Key bioactive compounds include polysaccharides from Polyporus umbellatus (ergone, polyporusterone A and B at approximately 0.1–0.5% dry weight), triterpenes from Poria cocos (pachymic acid, tumulosic acid), and alisol triterpenoids from Alisma orientalis (alisol A, B, and their acetates at ~0.2–0.8% dry weight). Ejiao contributes collagen-derived peptides and amino acids including glycine (~26%), proline (~13%), and hydroxyproline (~9%), plus trace minerals such as iron (~4.7 mg/100g) and calcium (~68 mg/100g). Talcum provides magnesium silicate contributing mineral support. The formula is low in conventional macronutrients as a decoction, delivering primarily water-soluble bioactive polysaccharides and triterpenoids with moderate bioavailability; lipid-soluble triterpenes benefit from co-administration with food. Fiber content is negligible in decoction form.

## Dosage & Preparation

The recommended dosage of Zhu Ling Tang is 9-15 grams of the herbal mixture, prepared as a decoction. Consult a healthcare provider before use.

## Safety & Drug Interactions

Zhu Ling Tang is generally well-tolerated but may cause electrolyte imbalances with excessive use due to its diuretic effects. It may enhance the effects of diuretic medications like furosemide, requiring dosage adjustments. Contraindicated in severe kidney disease, dehydration, and pregnancy due to potential effects on fetal development. Common side effects include mild nausea and increased urination frequency.

## Scientific Research

Research on Zhu Ling Tang has highlighted its potential in supporting urinary health and managing conditions like urinary tract infections. Some RCTs have shown promising results, though more comprehensive studies are required.

## Historical & Cultural Context

Zhu Ling Tang has been traditionally used to treat urinary issues and support kidney function, embodying the TCM principles of balance and detoxification.

## Synergistic Combinations

Zhu Ling Tang pairs well with Huang Qi (Astragalus membranaceus), whose astragalosides and polysaccharides complement the formula's diuretic and immune-modulating polysaccharides via additive Toll-like receptor 4 pathway modulation, enhancing renal tubular protection synergistically. Cordyceps sinensis (Dong Chong Xia Cao) synergizes through its cordycepin and adenosine content, which amplifies the formula's renal protective effects by upregulating Na+/K+-ATPase activity and reducing [oxidative stress](/ingredients/condition/antioxidant) alongside Ze Xie's alisol compounds. Cranberry extract (PACs — proanthocyanidins at 36mg standardized dose) complements the urinary tract anti-infective action of the formula by adding type-A proanthocyanidin anti-adhesion mechanisms against uropathogenic E. coli, working alongside Polyporus umbellatus polysaccharides' immunostimulatory effects for additive urinary tract defense.

## Frequently Asked Questions

### How long does Zhu Ling Tang take to work for urinary problems?

Most users experience increased urination within 2-4 hours, with peak diuretic effects occurring at 6-8 hours. For urinary tract infections, symptoms typically improve within 24-48 hours of consistent use.

### What is the typical dosage of Zhu Ling Tang?

Traditional dosage is 6-12 grams of the powdered formula taken 2-3 times daily with warm water. Modern preparations often provide 500-1000mg standardized extracts taken twice daily with meals.

### Can Zhu Ling Tang be taken with blood pressure medications?

Caution is advised as Zhu Ling Tang may enhance the effects of ACE inhibitors and diuretics, potentially causing excessive blood pressure reduction. Consult a healthcare provider for proper monitoring and dosage adjustments.

### Does Zhu Ling Tang help with kidney stones?

Traditional use suggests benefits for kidney stones through increased urine flow and reduced crystallization. However, clinical evidence is limited, and it should not replace conventional kidney stone treatment without medical supervision.

### What are the main herbs in Zhu Ling Tang formula?

The formula contains five herbs: polyporus (zhu ling), alisma (ze xie), poria (fu ling), atractylodes (bai zhu), and cinnamon bark (gui zhi). Each contributes specific diuretic and anti-inflammatory compounds to the overall therapeutic effect.

### Is Zhu Ling Tang safe for pregnant or breastfeeding women?

Zhu Ling Tang should generally be avoided during pregnancy and breastfeeding without professional guidance from a qualified TCM practitioner. The formula's diuretic properties and specific herb interactions could potentially affect fetal development or pass into breast milk. Pregnant and nursing women should consult with their healthcare provider before using this formula.

### What clinical research evidence supports Zhu Ling Tang's effectiveness for urinary conditions?

Zhu Ling Tang has been studied in traditional Chinese medicine research for its diuretic and anti-inflammatory properties, with some clinical observations supporting its use for urinary tract health and fluid retention. However, most evidence comes from TCM clinical practice and observational studies rather than large-scale randomized controlled trials by Western standards. More rigorous research is needed to fully establish its efficacy for specific conditions.

### Who would benefit most from taking Zhu Ling Tang?

Zhu Ling Tang is traditionally recommended for individuals with urinary tract issues, excess fluid retention, kidney dysfunction, or chronic inflammatory conditions affecting the urinary system. It may be particularly beneficial for those seeking to optimize kidney function and support natural detoxification through enhanced diuresis. Those with kidney disease, severe dehydration, or electrolyte imbalances should consult a practitioner before use.

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