The medicinal power of royal herb

King’s herb is found in the wild throughout the Netherlands, except on the Wadden Islands. The plant is native to many areas of Europe and Asia. It will be one and a half meters high. It has pink to red flowers that smell somewhat like sage. It blooms from July to September. The plant has medicinal properties for the liver and also has a diuretic effect. Moreover, it is a blood purifying plant. NB! This article is written from the personal view of the author and may contain information that is not scientifically substantiated and/or in line with the general view.

Botanical drawing of queen’s wort / Source: Carl Axel Magnus Lindman, Wikimedia Commons (Public domain)


  • Naming
  • Active substances
  • Safety royal wort
  • Liverwort is good for the liver
  • Liverwort, a diuretic
  • Dose a safety


The Latin name of royal weed is Eupatorium cannabinum . In Dutch it is also called liverwort in addition to queen herb. This is because it is used for liver diseases. The Latin name cannabinum was given because the leaves closely resemble the leaves of the cannabis plant. The name Queen’s Herb probably comes from the fact that it used to be called St. Kunigund’s Herb. Kunegonda was the wife of Emperor Henry II, the saint who lived at the end of the tenth and beginning of the eleventh century. Kunegonda died childless in 1033 and was canonized 77 years later by the Roman Catholic Church.

Active substances

The entire plant and root growing above ground are used to prepare natural medicines. Here is a list of the active substances in queen’s wort in order of importance: Polysaccharides such as inulin, flavonoids, benzofurans, essential oil, sesquiterpene lactones such as eupatoriopicrine and eupacrine, pyrrolizidine alkaloids including echinatine, lycopsamine, intermedine and rinderine. It also contains saponin, tannin and resin. In addition to these substances, the carrot contains supinine.

Safety royal wort

According to conventional medicine, pyrrolizidine alkaloids can cause cancer and are bad for the liver. In naturopathy, on the other hand, it is believed that pyrrolizidine alkaloids found in plants can cure liver diseases. However, as a safety measure in phytotherapy, royal wort should never be prescribed for longer than two months. The use of royal herb under the prescription of a herbal therapist is safe, but never make the decision yourself to drink royal herb tea frequently.

Liverwort is good for the liver

According to naturopaths, liverwort or queen’s herb is an herb that triggers bile formation and thus protects the liver. The root is more active than the herb itself. However, queen’s wort is not the only liver-protective herb. Dandelion, milk thistle, artichoke, picrorhiza and turmeric are often used in phytotherapy. Nevertheless, royal wort is sometimes prescribed by phytotherapists for:

Queen’s wort / Source: Hedwig Storch, Wikimedia Commons (CC BY-SA-3.0)

  • Hepatic insufficiency or weak liver function,
  • Poor fat digestion due to bile deficiency,
  • gallbladder inflammation,
  • To prevent gallstones,
  • Jaundice,
  • Other bile and liver disorders.

Liverwort, a diuretic

Queen’s wort is a diuretic. That is to say: a substance that wicks away moisture. An excess of waste products is initially stored in the blood. As more waste products leave the body, the blood is automatically cleaned. That is why liverwort has a depurative or blood purifying effect. Many skin diseases are caused by a poorly functioning liver. That comes as follows. The liver normally removes foreign toxins from the body through urine. But if the liver is overloaded for some reason, the liver can neutralize much less toxins. The body then looks for another way to remove toxins. One of those ways is through the skin. However, if a toxin leaves the body through the skin, it often causes damage. This can lead to a multitude of diseases, depending on everyone’s personal situation. In any case, a liver-protective diuretic is good for the treatment of the following indications:

  • Acne,
  • Couperose
  • acne rosacea,
  • Eczema.

Dose a safety

No side effects are reported for use to strengthen the liver and as a diuretic or diuretic, provided therapeutic doses are maintained. Because liverwort contains a small amount of pyrrolizidine alkaloids that can cause cancer, herbal therapists recommend using liverwort for a maximum of two months at a time.