Quebra Pedra (Phyllanthus niruri)
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.

Origin & History
Quebra Pedra, or Phyllanthus niruri, is a small herbaceous plant found in tropical regions around the world, including Brazil. It is harvested for its entire aerial parts, which are used in traditional remedies. The plant thrives in moist, shady environments.
Historical & Cultural Context
Traditionally, Quebra Pedra has been used in Brazilian folk medicine to support kidney and liver health. It is widely recognized in various cultural practices as a natural remedy for urinary tract issues.
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 properties, reducing inflammation by inhibiting inflammatory mediators, which can alleviate pain. - Quebra Pedra boosts liver health by enhancing detoxification processes, improving the liver's ability to process waste. - It supports immune function by promoting the activity of immune cells, helping the body fight infections more effectively. - The herb has antioxidant properties, neutralizing free radicals and protecting cells from oxidative damage. - Quebra Pedra may aid in managing blood sugar levels by improving insulin sensitivity, beneficial for those with diabetes.
How It Works
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.
Scientific Research
Research on Quebra Pedra includes studies on its potential to support kidney health and its anti-inflammatory properties. Some RCTs have shown positive results, but more comprehensive studies are needed to confirm its effectiveness.
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.
Preparation & Dosage
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.
Synergy & Pairings
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 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.
Safety & 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, requiring monitoring. Can increase lithium levels due to diuretic properties and may interact with blood pressure medications. Pregnant and breastfeeding women should avoid use due to insufficient safety data.