Rutin

Rutoside · Quercetin-3-rutinoside

Snapshot

Indications	Contraindications
Postoperative inflammation^{1, 2} Postoperative pain^{1, 3} Chronic venous insufficiency⁴ Abdominal visceral fat⁵	Pregnancy or nursing⁶ Soy allergy⁶

Rutin (quercetin-3-rutinoside) is a flavonoid found in buckwheat, citrus, and berries; gut bacteria metabolize most of an oral dose, so little is absorbed intact^{7, 8}. It is taken for antioxidant and anti-inflammatory activity, which drives interest in venous symptoms, postoperative inflammation and pain, and metabolic health. Hydroxyethyl rutoside has been tested for leg symptoms in pregnancy varicosis⁹. The typical patient is recovering from surgery or has type 2 diabetes.

Because these are fixed combinations, effects cannot be assigned to rutoside alone. With vitamin C in type 2 diabetes, fasting glucose fell relative to controls without a change in glycated hemoglobin. A 2026 meta-analysis of animal studies found rutin improved kidney function markers in diabetic nephropathy models; no human data support this yet¹⁰. Products listing rutin are numerous in the US label database, mostly standalone tablets and capsules plus enzyme and flavonoid blends; see Form comparison.

Some US product labels advise against use in pregnancy and nursing⁶.

Last updated October 17, 2026. Read how we make monographs.

In the full monograph

47 sources, 38 studies

When to useThe situations practitioners use it for, each with the reason and the study behind it.
SafetyWho should avoid it, who needs extra care, and the side effects reported in studies.
Protocol notesThe doses used in studies, how and when they were taken, and how the forms on the market compare.
How it worksWhat it is and how it works in the body, in plain terms.
Published studiesThe studies behind each use, popular claims checked against them, and trials still under way.
Word of mouthWhat patients and practitioners report online, kept separate from the clinical evidence.
Clinical perspectiveA closing read of where the evidence is solid, where it is thin, and what has not been studied.

Snapshot

In the full monograph

Sources