anise

Botanical name
Pimpinella anisum
Parts used and where grown
The seeds of this aromatic plant are used as both medicine and as a cooking spice. Anise comes from Eurasia but is now grown in gardens all over the world.
Anise has been used in connection with the following conditions (refer to the individual health concern for complete information):
Science Ratings - Health Concerns
* - Adjunct to cathartic laxatives
* - Breast-feeding support
* - Bronchitis
* - Chronic Obstructive Pulmonary Disease (COPD)
* - Cough
* - Indigestion and gas
* - Parasites
*** - Reliable and relatively consistent scientific data showing a substantial health benefit.
** - Contradictory, insufficient, or preliminary studies suggesting a health benefit or minimal health benefit.
* - For an herb, supported by traditional use but minimal or no scientific evidence. For a supplement, little scientific support and/or minimal health benefit.
Historical or traditional use (may or may not be supported by scientific studies)
Anise has been an important flavoring in European cooking since time immemorial. Its oil has also been used as an anthelmintic—a drug used to remove intestinal
parasites—though it is not considered the strongest plant in this regard.1 Anise has also been used for centuries in European herbalism to treat coughs and indigestion.2
Active constituents
The active constituents in anise, particularly the terpenoid anethole, are contained in its volatile oil. The volatile oil gives the plant a delightful flavor and has been combined with other less pleasant tasting medicinal herbs to offset their taste. The oil is also antispasmodic, helping to relieve
intestinal gas and spasmodic coughs.3 Anise has been combined with cathartic laxatives to help reduce the spasmodic cramping they can cause.4 It may also have modest antiparasitic actions and has been recommended by some practitioners to treat mild intestinal parasite infections.5 Anethole has been documented to have phytoestrogen activity in test tubes and animals;6 the relevance of this to humans is unknown. No clinical trials have been conducted to support any of these uses, though anise is approved for use by the German Commission E for relieving coughs and indigestion.7
How much is usually taken?
Three grams (1/2 tsp) of the seeds can be used three times per day to treat indigestion. To make a tea, boil 2 to 3 grams (1/2 tsp) of crushed seeds in 250 ml (1 cup) of water for ten to fifteen minutes, keeping the pot covered. Three cups of this tea can be drunk per day. It has been recommended to combine approximately 0.5 ml anise volatile oil with 4 oz (120 ml) tincture of anise and then take 10 to 30 drops (1/2 to 1.5 ml) of this mixture three times daily for coughs.8 The volatile oil can also be inhaled (by placing it in a vaporizer or in a steaming bowl of water) to help relieve a cough.9

Are there any side effects or interactions?
There are no known adverse effects from anise other than occasional allergic reactions of the skin with topical use and of the respiratory or gastrointestinal tract with internal use. It is frequently used to alleviate cough in children because of its gentleness and pleasant taste.10 The safety of using anise during
pregnancy and breast-feeding is unknown, though it is very likely safe and has traditionally been used to support breast-feeding in some cultures.11
At the time of writing, there were no well-known drug interactions with anise.