Tansy Plant Benefits

Some of the common names of the tansy plant will immediately give you an idea of its anthelmintic properties. Classical botanists did not know this herb, was first mentioned in the 12th century.

tansy plant on a hill

Healing Properties

The tansy plant contains tannin, flavonoids, and an essence rich in thujone, to which the plant owes its properties.

  1. Vermifuge – It paralyzes intestinal worms (roundworms and oxyuridae), and although it does not kill them, it promotes their expulsion if a purgative substance is taken after this plant.
  2. EmmenagogueNormalizes menstruation, and also produces it.


Respect the recommended doses, since when taken in high doses it can produce vomiting and convulsions. It must not be given to pregnant women.


Costmary or Bible Leaf (Tanacetum balsamita L.) is another species, similar to tansy, which is also used as a vermifuge. It has large, hairy leaves. It also has antitussive and carminative (anti-flatulence) properties. It is usually prepared in infusion, with 15 to 20 grams of leaves per liter of water, and drinking 3 to 4 cups daily. When taking with vermifuge aims, one of two cups must be taken on an empty stomach, and after an hour, take a purgative substance.

Tansy Plant Scientific Facts

  1. Scientific Name – Tanacetum vulgare L.
  2. Other Names – Bitter buttons, parley fern, hindheal.
  3. French – Tanaisie, herbe aux vers.
  4. Spanish – Tanaceto, lombricera.
  5. Environment – Spread all over Europe except in Mediterranean areas. Naturalized to North America.
  6. Description – Vivacious plant of the Compositae family, with an upright stem growing up to 90 cm high, leaves divided into many toothed folioles, very aromatic, and yellow flower chapters with no ligules (a kind of colored leaves which usually surround true flowers in plants of the Compositae family).
  7. Parts of the plant used medicinally – Well rip flower chapters, with seeds.
tansy plant tea in a red cup with tansy flowers next to it

How to use Tansy

  1. Infusion with 5 grams of seeds per cup of water. These must be taken in the morning, on an empty stomach.
  2. Dry flower chapters – Up to 5 grams of dried and ground flowers, dissolved in water. After an hour, take a purgative substance. Repeat for three days.
  3. Enema, with the same infusion, is internally used to enhance its vermifuge properties.


George D. Pamplona-Roger, M.D. “Encyclopedia of Medicinal Plants.” George D. Pamplona-Roger, M.D. Encyclopedia of Medicinal Plants. Ed. Francesc X. Gelabert. vols. 2 San Fernando de Henares: Editorial Safeliz, 2000. 537. Print. [tansy plant]

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