Fennel
Foeniculum vulgare
T Traditional useFennel seed tea is traditionally used for bloating and wind, for mild period cramps and for cough that comes with a cold.
Image: Herbadex Botanik Stüdyosu · Özel Üretim
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At a glance
The EMA classes bitter fennel fruit (seed) as a traditional herbal medicine for three uses: mild spasmodic digestive complaints, mild cramps during periods, and cough with a cold. Because it contains estragole, use is limited to 2 weeks.
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 for mild, spasmodic digestive complaints such as bloating and wind. [1]
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 for minor cramps associated with menstrual periods. [1]
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 as an expectorant for cough associated with a cold. [1]
How is it used?
Tea
Steep 1.5 g of crushed fennel seed in 250 ml of boiling water for 15 minutes.
Amount: 3 times daily (max 4.5 g a day)
Duration limit: Max 2 weeks
[1]Safety & interactions
Minimum age: 4 years
Duration limit: 14 days
- Do not use for more than 2 weeks.
- Not recommended under 4; not recommended for period cramps under 12.
- Do not use if you are allergic to the carrot family (anise, caraway, celery, coriander, dill), mugwort pollen or anethole.
- Not recommended in pregnancy or breastfeeding; anethole passes into breast milk.
Drug interactions
No recorded interactions
Side effects
- Allergic reactions of the skin or airways (frequency unknown)
⚕ 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?
For fennel tea, the seed is crushed and steeped for 15 minutes; the EMA advises at most 2 weeks of use. [1]
Frequently asked questions
Can babies have fennel tea for colic?
The EMA does not recommend fennel tea for children under 4. Ask a paediatrician about colic.
How do I make fennel tea?
Lightly crush 1.5 g of seed and steep in 250 ml of boiling water for 15 minutes. Drink 3 times a day for no more than 2 weeks.
Why only 2 weeks?
Fennel contains estragole, which raises safety concerns with long-term, high intake. The EMA therefore limits the duration.
Does fennel increase breast milk?
The EMA monograph has no such indication, and fennel is not recommended while breastfeeding.
Sources
- European Union herbal monograph on Foeniculum vulgare Miller subsp. vulgare var. vulgare, fructus – Revision 1EMA HMPC · 2024
Cite This Page
Fennel (Foeniculum vulgare). Herbadex — Doğal Şifa Rehberi (2026). https://herbadex.com/en/herb/fennel/
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Other herbs in the same preparation form (Seed)
Seed →
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