Small-Flowered Willowherb
Epilobium parviflorum
T Traditional useTraditionally taken as a tea for lower urinary tract symptoms of benign prostate enlargement, after a doctor has ruled out serious conditions.

Image: Herbadex Botanik Stüdyosu · Özel Üretim
On this page
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.
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
Traditional use: Based on at least 30 years of documented traditional use rather than clinical trials.
How do we rate evidence levels? →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.
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
- European Union herbal monograph on Epilobium angustifolium L. and/or Epilobium parviflorum Schreb., herbaEMA 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
Other herbs in the same preparation form (Dried Herb & Tea)
Dried Herb & Tea →
Echinacea
A Strong clinical evidenceEchinacea purpurea
Juice pressed from fresh echinacea plants may help with short-term prevention and treatment of colds. Dried echinacea tea is not covered.

Psyllium Husk
A Strong clinical evidencePlantago ovata
Taken with plenty of water, psyllium husk helps soften stools in constipation; keep a gap between it and other medicines.

Senna
A Strong clinical evidenceSenna 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.

St. John's Wort
A Strong clinical evidenceHypericum perforatum
St John's wort extract may help with mild to moderate depressive episodes, but it seriously interacts with many medicines, including the pill.



