--- title: "Small-Flowered Willowherb Benefits & Side Effects" description: "Traditionally taken as a tea for lower urinary tract symptoms of benign prostate enlargement, after a doctor has ruled out serious conditions." language: en url: https://herbadex.com/en/herb/small-flowered-willowherb/ source: Herbadex (https://herbadex.com) --- [Dried Herb & Tea](https://herbadex.com/en/form/dried-herb-tea/) # Small-Flowered Willowherb Epilobium parviflorum T Traditional use Traditionally taken as a tea for lower urinary tract symptoms of benign prostate enlargement, after a doctor has ruled out serious conditions. [Men’s Health](https://herbadex.com/en/for/mens-health/) Image: Herbadex Botanik Stüdyosu · Özel Üretim Pregnancy **Unknown** Breastfeeding **Unknown** Children **⚠ Avoid** Drug interactions **No recorded interactions** ## At a glance The EMA assesses willowherb (Epilobium angustifolium and/or E. parviflorum) as a traditional herbal product for lower urinary tract symptoms related to benign prostatic hyperplasia. This use applies only after a doctor has ruled out serious conditions such as prostate cancer. Long-term use is possible. **Parts used:** aerial-parts **Key constituents:** Beta-sitosterol & Oenothein B Updated: October 15, 2026 ✓ This herb record is backed by official European Medicines Agency (EMA HMPC) herbal monographs. ## What is it used for? - T Traditional use Traditionally used to relieve lower urinary tract symptoms of benign prostate enlargement, after serious conditions have been ruled out by a doctor. \[1\] ## How is it used? ### Tea Infuse 1.5–2 g of cut herb in 250 ml of boiling water. **Amount:** Twice daily \[1\] ## Safety & interactions Minimum age: 18 years - Have a doctor assess the cause of your urinary symptoms before use. - See a doctor at once if symptoms worsen or fever, cramps, blood in the urine, painful urination or inability to pass urine occur. - Used for prostate complaints in men; there is no relevant use in children or adolescents. \[1\] ### Drug interactions No recorded interactions ### Side effects - None known according to the monograph; report any unexpected effect to a doctor #### ⚕ When to see a doctor - If high fever, shortness of breath or purulent/bloody phlegm develops - If symptoms do not improve within 1–2 weeks or worsen - If severe abdominal pain, jaundice, rash or allergic reaction occurs ## Did you know? Willowherb is one of the few herbs the EMA considers suitable for long-term use. \[1\] ## Frequently asked questions Does willowherb help the prostate? The EMA accepts its traditional use for urinary symptoms of benign prostate enlargement, once a doctor has ruled out serious disease. How is willowherb tea made? Infuse 1.5–2 g of herb in 250 ml of boiling water; drink twice daily. Can willowherb be used long term? According to the monograph long-term use is possible; see a doctor if symptoms worsen. ## Sources 1. [European Union herbal monograph on Epilobium angustifolium L. and/or Epilobium parviflorum Schreb., herba](https://www.ema.europa.eu/en/documents/herbal-monograph/final-european-union-herbal-monograph-epilobium-angustifolium-l-andor-epilobium-parviflorum-schreb-herba_en.pdf) EMA HMPC · 2015 ### Cite This Page Small-Flowered Willowherb (Epilobium parviflorum). Herbadex — Doğal Şifa Rehberi (2026). https://herbadex.com/en/herb/small-flowered-willowherb/ ## Related guides and comparisons - [How to Prepare Herbal Tea](https://herbadex.com/en/guide/how-to-prepare-herbal-tea/) - [How to Use Essential Oils Safely](https://herbadex.com/en/guide/essential-oil-safety/) - [Herbal Products and Drug Interactions](https://herbadex.com/en/guide/herb-drug-interactions/) ## On this page At a glance What is it used for? How is it used? Safety & interactions Did you know? Frequently asked questions Sources Related herbs ## Related herbs ### [Saw Palmetto](https://herbadex.com/en/herb/saw-palmetto/) A Strong clinical evidence Serenoa repens Saw palmetto fruit extract may help urinary symptoms of benign prostate enlargement; raised INR has been reported with warfarin. 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[Men’s Health](https://herbadex.com/en/for/mens-health/) [Liver, Kidney & Urinary](https://herbadex.com/en/for/liver-kidney/) [Seed](https://herbadex.com/en/form/seed/) ### [Ferula Root Water](https://herbadex.com/en/herb/ferula-root-water/) C Laboratory / animal evidence Ferula spp. A drink made from Ferula (çakşır) root, traditionally used for male sexual vigour. Its effect has only been studied in animals. [Men’s Health](https://herbadex.com/en/for/mens-health/) [Floral Water](https://herbadex.com/en/form/floral-water/) ## Other herbs in the same preparation form (Dried Herb & Tea) [Dried Herb & Tea →](https://herbadex.com/en/form/dried-herb-tea/) ### [Echinacea](https://herbadex.com/en/herb/echinacea/) A Strong clinical evidence Echinacea purpurea Juice pressed from fresh echinacea plants may help with short-term prevention and treatment of colds. Dried echinacea tea is not covered. [Immunity](https://herbadex.com/en/for/immunity/) [Skin & Hair](https://herbadex.com/en/for/skin-hair/) [Dried Herb & Tea](https://herbadex.com/en/form/dried-herb-tea/) ### [Psyllium Husk](https://herbadex.com/en/herb/psyllium-husk/) A Strong clinical evidence Plantago ovata Taken with plenty of water, psyllium husk helps soften stools in constipation; keep a gap between it and other medicines. [Digestion](https://herbadex.com/en/for/digestion/) [Heart & Circulation](https://herbadex.com/en/for/heart-circulation/) [Dried Herb & Tea](https://herbadex.com/en/form/dried-herb-tea/) ### [Senna](https://herbadex.com/en/herb/senna/) A Strong clinical evidence Senna alexandrina A stimulant laxative for short-term relief of occasional constipation. No longer than 1 week; not for children under 12, in pregnancy or while breastfeeding. [Digestion](https://herbadex.com/en/for/digestion/) [Dried Herb & Tea](https://herbadex.com/en/form/dried-herb-tea/) ### [St. John's Wort](https://herbadex.com/en/herb/st-johns-wort/) A Strong clinical evidence Hypericum perforatum St John's wort extract may help with mild to moderate depressive episodes, but it seriously interacts with many medicines, including the pill. [Sleep, Stress & Mood](https://herbadex.com/en/for/sleep-stress/) [Digestion](https://herbadex.com/en/for/digestion/) [Dried Herb & Tea](https://herbadex.com/en/form/dried-herb-tea/) This page is for information only and is not medical advice. If you take medication, are pregnant, or have a health condition, talk to your doctor or pharmacist before use.