Rutin
Antioxidant ·Exploratory record · not publication-reviewed ·Updated July 13, 2026
Rutin is a naturally occurring flavonol glycoside (the rhamnoglucoside of quercetin) found in buckwheat, citrus, and many fruits and vegetables. It is most commonly taken for venous and capillary support, including chronic venous insufficiency and hemorrhoids, and for general antioxidant activity. It is frequently combined with other citrus bioflavonoids such as hesperidin and diosmin in vein-health formulations.
Exploratory record, not a reviewed medical publication.
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This generated database record has not completed a claim-level review by a qualified human medical reviewer. Bibliography links and evidence labels are not approval. The page remains available for reference and is excluded from search indexing.
What the research says.
A quick, data-only summary. The full evidence, dosing, and sources are below.
Rutin is an antioxidant most often used for supports capillary integrity and reduces capillary fragility, may relieve symptoms of chronic venous insufficiency (leg heaviness, swelling), used as supportive care for hemorrhoidal symptoms. NutriStack rates the overall evidence as moderate. A typical adult dose is 500-1000 mg per day, often divided into two doses; vein-support combinations may use specific standardized amounts, commonly taken as oral capsules or tablets, frequently combined with hesperidin or diosmin. This profile indexes 8 sources.
The bottom line
Evidence rating moderate. Most-documented uses: supports capillary integrity and reduces capillary fragility, may relieve symptoms of chronic venous insufficiency (leg heaviness, swelling), used as supportive care for hemorrhoidal symptoms. 8 sources indexed (1992–2020), with 0 interaction records on file.
How it works, mechanistically.
Core mechanism
Rutin acts largely through its polyphenolic structure, which scavenges free radicals and chelates transition metal ions, reducing oxidative stress and lipid peroxidation. It is thought to support microvascular integrity by decreasing capillary permeability and fragility, in part by protecting collagen and inhibiting enzymes such as hyaluronidase that degrade the vessel wall matrix. Rutin and its aglycone quercetin also modulate inflammatory signaling and can inhibit platelet aggregation and certain enzymes (e.g., aldose reductase and some phosphodiesterases). After oral intake the glycoside is poorly absorbed intact and is largely metabolized by gut microbiota to quercetin and smaller phenolic acids, which contribute to the systemic effects.1,4
Dosing & protocol.
Rutin is poorly absorbed as the intact glycoside and depends heavily on gut bacteria to release the absorbable aglycone quercetin. Taking it with food may improve tolerability; bioavailability is generally low and variable between individuals.
What it actually costs.
Real-world pricing across three quality tiers. Assumes Standard rutin capsule/powder (250-500 mg).
Plain rutin is inexpensive and widely available as a standalone or in citrus-bioflavonoid blends. Standardized oxerutin/troxerutin products and enzymatically modified soluble forms sit at the higher end. Prices are US retail estimates per single daily dose; twice-daily dosing roughly doubles monthly cost. Updated 2026-06-04.
Full safety detail.
Side effects
- Generally well tolerated
- Mild gastrointestinal upset
- Headache
- Flushing
- Rash (uncommon)
Contraindications
- Known hypersensitivity to rutin or related flavonoids1,4
- Caution with anticoagulant or antiplatelet therapy due to possible additive bleeding risk
- Pregnancy and breastfeeding (insufficient safety data; use only under medical advice)3
- Discontinue before surgery because of potential effects on platelet function
Sources, by evidence tier.
Numbered references. Citations throughout the page link here.
Meta-analyses & systematic reviews
2- 1Phlebotonics for venous insufficiencyMartinez-Zapata MJ et al. · Cochrane Database of Systematic Reviews · 2020
Phlebotonics, including rutosides, probably reduce edema and some symptoms of chronic venous insufficiency compared with placebo, though the evidence is of moderate to low certainty.
- 2Oxerutins (Venoruton) in the treatment of chronic venous insufficiency: a systematic reviewPoynard T et al. · Vasa · 1994
Pooled trial data indicate hydroxyethylrutosides significantly reduce edema and subjective symptoms such as leg heaviness and pain versus placebo.
Randomized controlled trials
1- 3Oxerutins (Paroven) for treatment of hemorrhoids in pregnancy: a randomized controlled trialSource linkedPMIDWijayanegara H, Mose JC, Achmad L, Sobarna R, Permadi W · The Journal of International Medical Research · 1992
Reviews & position papers
3- 4Rutin: A review on pharmacological and chemical aspectsGaneshpurkar A et al. · Saudi Pharmaceutical Journal · 2017
Rutin demonstrates significant antioxidant, anti-inflammatory, and vasoprotective properties across preclinical models, supporting its use in vascular and oxidative-stress-related conditions.
- 5Rutin: a review on extraction, identification and purification methods, biological activities and approaches to enhance its bioavailabilitySource linkedDOIGullon B, Lu-Chau TA, Moreira MT, Lema JM, Eibes G · Trends in Food Science and Technology · 2017
- 6Bioavailability and bioefficacy of polyphenols in humansManach C et al. · American Journal of Clinical Nutrition · 2005
Quercetin glycosides such as rutin are absorbed more slowly and less efficiently than quercetin glucosides, with colonic microbial deglycosylation a major determinant of systemic flavonoid exposure.
Mechanistic & preclinical
2- 7Rutin inhibits platelet aggregation and thrombus formation: protein disulfide isomerase as a molecular targetSource linkedPMIDJasuja R, Passam FH, Kennedy DR, Kim SH, van Hessem L, Lin L, Bowley SR, Joshi SS, Dilks JR, Furie B, Furie BC, Flaumenhaft R · The Journal of Clinical Investigation · 2012
- 8Antioxidant activity applying an improved ABTS radical cation decolorization assaySource linkedPMIDRe R, Pellegrini N, Proteggente A, Pannala A, Yang M, Rice-Evans C · Free Radical Biology and Medicine · 1999
Common questions.
Quick answers about Rutin, drawn from the data on this page.
What is Rutin?
Rutin is a naturally occurring flavonol glycoside (the rhamnoglucoside of quercetin) found in buckwheat, citrus, and many fruits and vegetables. It is most commonly taken for venous and capillary support, including chronic venous insufficiency and hemorrhoids, and for general antioxidant activity. It is frequently combined with other citrus bioflavonoids such as hesperidin and diosmin in vein-health formulations.
What is Rutin used for?
Commonly cited benefits of Rutin include: Supports capillary integrity and reduces capillary fragility; May relieve symptoms of chronic venous insufficiency (leg heaviness, swelling); Used as supportive care for hemorrhoidal symptoms; Antioxidant and free-radical scavenging activity; May help reduce edema and microvascular leakage. NutriStack rates the overall evidence as moderate.
What is a typical dose of Rutin?
A typical adult dose of Rutin is 500-1000 mg per day, often divided into two doses; vein-support combinations may use specific standardized amounts. The commonly recommended form is Oral capsules or tablets, frequently combined with hesperidin or diosmin. These are general ranges, not personalized advice; confirm the right dose with a clinician.
What are the side effects of Rutin?
Reported side effects include generally well tolerated, mild gastrointestinal upset, headache, flushing, rash (uncommon). This is educational information; check with a healthcare professional before use.
How strong is the evidence for Rutin?
NutriStack rates this as Moderate, meaning several aligned RCTs or one large RCT plus supporting reviews. Full tier criteria are at https://nutristackapp.com/methodology/evidence-tiers.
Use this with your stack
Rutin in NutriStack.
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