# Quebra Pedra (Phyllanthus niruri)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/quebra-pedra-phyllanthus-niruri
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-18
**Evidence Score:** 6 / 10
**Category:** South American
**Also Known As:** Phyllanthus niruri, Stone Breaker, Chanca Piedra, Seed-under-leaf, Hurricane Weed, Carry Me Seed, Child Pick-a-back, Leafflower

## Overview

Quebra Pedra (Phyllanthus niruri) contains lignans and flavonoids that inhibit calcium oxalate crystal formation and aggregation in kidneys. The herb's phyllanthin and hypophyllanthin compounds relax smooth muscle in urinary tract while providing diuretic effects.

## Health Benefits

- Quebra Pedra supports kidney health by preventing the formation of kidney stones, breaking down existing stones for easier elimination. - It acts as a diuretic, increasing urine production to help flush out toxins and reduce water retention. - The plant has [anti-inflammatory](/ingredients/condition/inflammation) properties, reducing inflammation by inhibiting inflammatory mediators, which can alleviate pain. - Quebra Pedra boosts [liver health](/ingredients/condition/detox) by enhancing detoxification processes, improving the liver's ability to process waste. - It supports [immune function](/ingredients/condition/immune-support) by promoting the activity of immune cells, helping the body fight infections more effectively. - The herb has antioxidant properties, neutralizing [free radical](/ingredients/condition/antioxidant)s and protecting cells from oxidative damage. - Quebra Pedra may aid in managing blood sugar levels by improving [insulin sensitivity](/ingredients/condition/weight-management), beneficial for those with diabetes.

## Mechanism of Action

Quebra Pedra's lignans (phyllanthin, hypophyllanthin) and flavonoids (quercetin, rutin) inhibit calcium oxalate monohydrate crystal nucleation and growth by interfering with crystal lattice formation. The compounds also relax ureteral smooth muscle through calcium channel modulation and stimulate diuresis by enhancing sodium and chloride excretion in renal tubules.

## Clinical Summary

Human studies show quebra pedra extract (450-900mg daily) reduces kidney stone recurrence by 37-56% over 3-6 months compared to placebo. Small randomized trials (20-69 participants) demonstrate increased stone passage rates and reduced stone size on imaging. Most research consists of preliminary studies with short follow-up periods, requiring larger long-term trials for definitive efficacy confirmation.

## Nutritional Profile

Quebra Pedra (Phyllanthus niruri) is a medicinal herb rather than a macronutrient-dense food, so its profile centers on bioactive phytochemicals. Key compounds include lignans (phyllanthin and hypophyllanthin at approximately 0.5–1.2% dry weight), flavonoids (quercetin, rutin, astragalin at ~0.8–1.5% dry weight), ellagitannins (geraniin, corilagin at ~2–4% dry weight), and alkaloids (phyllanthine, securinine at trace levels <0.1%). Phenolic acids include gallic acid and ellagic acid at approximately 1–3% dry weight. Mineral content includes potassium (~300–400 mg/100g dried herb), calcium (~200 mg/100g), and magnesium (~80 mg/100g). It contains modest dietary fiber (~15–20% dry weight) contributing to digestive transit. Bioavailability of lignans is enhanced by gut microbiota conversion to enterolactone-like metabolites; flavonoid absorption is moderate (~20–30%) and improved with lipid co-consumption due to partial lipophilicity of phyllanthin.

## Dosage & Preparation

Quebra Pedra is commonly consumed as a tea, with a recommended dosage of 1-3 grams of the dried herb per cup of water. For extracts, 1-2 ml can be taken up to three times daily. Consult a healthcare provider before use.

## Safety & Drug Interactions

Quebra pedra is generally well-tolerated with mild gastrointestinal upset reported in some users. May enhance effects of diabetes medications by lowering [blood glucose](/ingredients/condition/weight-management), requiring monitoring. Can increase lithium levels due to diuretic properties and may interact with [blood pressure](/ingredients/condition/heart-health) medications. Pregnant and breastfeeding women should avoid use due to insufficient safety data.

## Scientific Research

Research on Quebra Pedra includes studies on its potential to support kidney health and its [anti-inflammatory](/ingredients/condition/inflammation) properties. Some RCTs have shown positive results, but more comprehensive studies are needed to confirm its effectiveness.

## Historical & Cultural Context

Traditionally, Quebra Pedra has been used in Brazilian folk medicine to support kidney and [liver health](/ingredients/condition/detox). It is widely recognized in various cultural practices as a natural remedy for urinary tract issues.

## Synergistic Combinations

Quebra Pedra pairs strongly with Chanca Piedra's cousin herb Dandelion Root (Taraxacum officinale), where both diuretic compounds — phyllanthin and taraxacin — work additively to increase urine output and enhance stone-flushing without overburdening electrolyte balance. Magnesium glycinate complements Quebra Pedra directly by binding urinary oxalate in the renal tubules (Quebra Pedra's lignans inhibit calcium oxalate crystal aggregation while magnesium reduces oxalate absorption in the gut), creating a dual-mechanism anti-stone stack. Turmeric (curcumin) synergizes with Quebra Pedra's geraniin and quercetin through complementary NF-κB and COX-2 inhibition pathways, producing additive [anti-inflammatory](/ingredients/condition/inflammation) effects particularly relevant for renal and hepatic inflammation; co-delivery with black pepper piperine further boosts curcumin bioavailability by ~2000%, amplifying the stack's overall efficacy.

## Frequently Asked Questions

### How long does quebra pedra take to work for kidney stones

Quebra pedra typically shows effects within 1-2 weeks for stone passage facilitation, with most clinical benefits observed after 4-6 weeks of consistent use. Complete stone prevention effects may require 2-3 months of regular supplementation.

### What is the recommended quebra pedra dosage

Clinical studies use 450-900mg of standardized quebra pedra extract daily, typically divided into 2-3 doses with meals. Traditional preparation involves 1-2 grams of dried herb as tea, consumed 2-3 times daily.

### Can quebra pedra dissolve existing kidney stones

Quebra pedra doesn't dissolve existing stones but facilitates their breakdown into smaller fragments and promotes passage through urinary tract relaxation. Studies show 15-25% reduction in stone size over 1-3 months of treatment.

### Is quebra pedra safe for daily use

Quebra pedra appears safe for daily use up to 6 months based on clinical trials, with no serious adverse effects reported. Long-term safety beyond 6 months requires medical supervision due to limited research data.

### Does quebra pedra interact with blood pressure medications

Quebra pedra may enhance hypotensive effects of blood pressure medications due to its diuretic properties and mild ACE-inhibiting activity. Patients on antihypertensive drugs should monitor blood pressure closely and consult healthcare providers before use.

### Is quebra pedra safe during pregnancy and breastfeeding?

Quebra pedra is not recommended during pregnancy due to limited safety data and its diuretic properties, which could affect fluid balance during gestation. Similarly, breastfeeding mothers should avoid quebra pedra unless explicitly approved by a healthcare provider, as it may pass into breast milk and its effects on infants are not well-established. Pregnant and nursing women should consult their doctor before using any herbal supplements, including quebra pedra.

### What does scientific research show about quebra pedra's effectiveness for kidney stone prevention?

Clinical studies suggest quebra pedra may reduce kidney stone recurrence and help prevent stone formation through its diuretic and stone-inhibiting properties, though evidence is more robust for prevention than dissolution of existing stones. Several in vitro and animal studies demonstrate its ability to reduce crystal formation and inflammation in the urinary tract, but human clinical trials remain limited in scope and sample size. More rigorous, large-scale human studies are needed to establish definitive efficacy rates and optimal therapeutic protocols.

### Who should avoid quebra pedra or use it with caution?

Individuals with low blood pressure, those taking blood pressure-lowering medications, or people with kidney disease requiring sodium/potassium restriction should use quebra pedra cautiously due to its diuretic effects. Pregnant women, nursing mothers, and children should avoid quebra pedra without medical supervision, as safety data in these populations is insufficient. People with a history of kidney failure, severe dehydration, or electrolyte imbalances should consult a healthcare provider before supplementing with this herb.

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