What it is
Couch grass is a persistent grass whose rhizome is the part used in European herbal medicine. Botanical naming varies; Agropyron repens and Elytrigia repens are commonly encountered synonyms.
Traditional-use context
The EMA has an EU herbal monograph for couch grass rhizome in the urinary-tract therapeutic area. Its use is based on traditional herbal practice and should not be presented as a substitute for evaluation of urinary symptoms.
Preparation context
Couch grass rhizome is found in traditional herbal teas and registered herbal medicinal products. Use a labelled product and follow its instructions; adequate fluid intake may be important when a product is intended to increase urine flow.
Quality and identification
Choose products that clearly identify the plant and plant part (rhizome). Product-specific dose and duration matter more than generic internet recipes.
Safety and precautions
Do not self-treat fever, painful urination, blood in the urine, urinary retention, flank pain, or persistent urinary symptoms. People with conditions requiring fluid restriction should seek medical advice before using diuretic-style herbal products.
Evidence note
Traditional use and modern clinical evidence are not the same. Where an official monograph exists, this page uses it as a primary reference; otherwise claims are deliberately conservative.
EMA — Agropyri repentis rhizomaDisclaimer: This page is for educational purposes only and does not provide medical advice. Herbal products can interact with medicines and may be inappropriate for some people. Consult a qualified clinician or pharmacist when symptoms are significant, persistent, or when you use prescription medicines.