Foeniculum vulgare.   Xiǎo huí xiāng   Common fennel seed   Family: Umbelliferae       
Nature- warm    FLAVOR: Acrid, pungent, sharp, sweet    CHANNEL: Kidney, Bladder, Stomach, Liver, Spleen
FUNCTIONS
GROUP: Warm the Interior and Expel Cold
1. Warm center.
2. Alleviate pain in abdomen.[1,2,3]
3. Regulates Stomach Qi. Promotes digestion. Tonic that stimulates Qi.[1] Resolves Phlegm.[1]  Regulate Energy circulation.[4] Promotes digestion.[1] Disperse the depressed Liver energy and regulate the Stomach energy. Strengthen Stomach.[5] Stop flatulence.[5]
4. Stimulates milk production.[1]
INDICATIONS
1. Cold pain in lower abdomen.[4] Cold Intestines- Cold type colic. Indigestion and abdominal pain.[1] Period pain. Cold pain in lower abdomen.[4]
2. Swelling and pain in testes.  Inguinal hernia pain-[1,2,3,5] (Most hernias are Cold in Nature). Swelling of epididymis. Hydrocele testis. Orchidoptosis.
3. Stomach Cold with Cold pain. Stomach ache.[4] Fullness in the epigastrium and abdomen. Vomiting.[4] Poor appetite.
4.  Lumbago.[4] Dry and wet beriberi.[4] Gastroenteritis.[1]
5. Arthritis.[4]
CONTRAINDICATIONS: Chinese herbalists believe that fennel travels very fast in the body and it can quickly warm up the internal region. Therefore, fennel can treat cold pain in the body; but since it is warm in nature, fennel should not be used to treat any hot disease, such as hot diarrhea or pain that occurs on exposure to hot surroundings (sunburn, burn, or warm temperatures). Fennel is not recommended for men with excessively strong erection and premature ejaculation.[5]
COMBINATIONS
PREPARATIONS: Decoction seeds  3-9 g.[2,3]
Or crushed and mixed with water for drinking.[1]


HABITAT: In wild or cultivated.
DESCRIPTION: Perennial herb. Whole plant highly aromatic. Stem; erect, cylindrical. Basal leaves clustered, stem leaves alternate, leaves 3 or 4 times pinnately compound, parted lobes linear. Flowers appear in the fall, yellow in a compound umbellate inflorescence.
References
Inner Path can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Constituents.

Research.
The volatatile oil has been shown to increase liver regeneration in partially hepatectomized rats.[1]
Fennel is antiinflammatory in rats and also slightly oestrogenic.[2]
References
[1] Gershbein, L. L (1977) Food Cosmet. Toxicol. 15 (3), 173
[2] Albert- Puleo, M. (1980) J. Ethnopharmacol. 2, 337

Clinical report: for treament of incarcerated hernia of small intestine, use 10-20 g fennel (less for children) to make tea; drink it hot; if no effects are shown within 15-30 minutes, repeat once more. Or, use hot water to make fennel soul (4 to 8 g fennel seed for adults and 2 g for children), and drink the soup; 10 minutes later repeat and drink once more, then lie down of your back with your legs together and knees half bent for 40 minutes. In general, the incarcerated hernia should restore itself within half an hour, and the pain should dissapear or improve, otherwise, surgery is indicated, according to this clinical report. Among the 26 cases treated from 2 hours to 3 days, 22 cases have recovered and 4 cases have shown no effects (3 cases of incarcerated omentum majus and 1 case of parietal necrosis). the report also indicates that the treatment results are better in cases with a shorter history of the disease.[1]
References
[1] Chinese System of Food Cures Prevention and Remedies. 1986 Lu, Henry. Sterling Publishing Co., Inc. New York. USA. Distributed in Australia by Capricorn Book Co. Pty Ltd. Lane Cove, NSW. ISBN 0-8069-6308-5.

Medicinal properties of Foeniculum vulgare Mill. in traditional Iranian medicine and modern phytotherapy.
Rahimi R, Ardekani MR.
Abstract: Foeniculum vulgare Mill. (F. vulgare), commonly known as Fennel, is a popular medicinal plant with various pharmacological activities mentioned in traditional Iranian medicine (TIM) and modern phytotherapy such as antioxidant, cytotoxic, anti-inflammatory, antimicrobial, bronchodilatory, estrogenic, diuretic, lithontripic, galactogogue, emmenagogue, antithrombotic, hypotensive, gastroprotective, hepatoprotective, memory enhancing, and antimutagenic activities. No serious adverse events were recorded after ingestion of F. vulgare except some cases of allergic reactions. The estrogenic activity of F. vulgare brings some side effects such as decrease in protein concentration and acid and alkaline phosphatase in male genital organs, increase in weight of mammary glands and reproductive organs in women and premature thelarche in girls. However, no evidence of teratogenicity was recorded, it is better not to use F. vulgare during pregnancy due to its estrogenic activity. Because of inhibition of cytochrome P450 3A4 (CYP3A4), the pharmacokinetic parameters of drugs mainly metabolized by this isozyme may be affected by F. vulgare. In addition, a significant interaction between cyprofloxacin and F. vulgare was demonstrated. The aim of current paper is to review pharmacological properties, toxicity and adverse events, and drug interactions of vulgare and brings conclusive results about the use of this plant in men, women and during pregnancy.
Source: Chin J Integr Med. 2013 Jan;19(1):73-9. doi: 10.1007/s11655-013-1327-0. Epub 2012 Dec 29. ncbi.nlm.nih.gov