Agrimony: a medicinal plant you should know

Agrimony (Agrimonia eupatoria L.) is a medicinal plant that It has been used since ancient times as a complement to treat the symptoms of some diseases. Although it is not considered a first-line treatment for improving health, there are studies that support many of the properties attributed to it.

For example, recent research in Evidence-Based Complementary and Alternative Medicine determined that the plant has analgesic, anti-inflammatory and antioxidant activity. Due to this, both its infusion and its extracts contribute to reducing the risk of diseases. What is it for? What are its benefits backed by science?

What is agrimony?

Agrimony, scientific name Agrimony eupatoria, is also known in popular language as "St. William's herb." It is a perennial plant that is part of the Rosaceae family, to which popular fruits such as apples, pears and peaches also belong.

It is characterized by having a pleasant aroma and showy yellow flowers that are usually grown for ornamental purposes. In addition, it reaches up to 1.5 meters in height, is hairy and its leaves are made up of three to six pairs.

Agrimony properties

Due to its important content of pharmacological compounds, agrimony has been valued as a supplement for some health problems. In particular, as an article published in the magazine Drugs, the aerial parts of the plant concentrate between 4% and 10% of condensed tannins, small amounts of ellagitannins and traces of gallotannins.

It also contains 20% polysaccharides, in addition to silicic acid, traces of essential oil and flavonoids such as luteolin and apigenin 7-O-beta-D-glucosides. Among other things, it provides vitamin B1, vitamin C, vitamin K and organic acids that give it important properties.

According to a publication in the magazine BioFactors, the plant and its derivatives have anti-inflammatory, antioxidant and purifying activity. It has also been determined to be antidiabetic, analgesic, astringent, antidiarrheal, neuroprotective, and antimicrobial.

This plant is also used for ornamental purposes, due to its showy yellow flowers.

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Agrimony benefits

In natural medicine, agrimony has been used to help relieve some diseases. However, to date there is insufficient evidence to support its use as a first-line treatment. In any case, there is research that speaks of its potential when it comes to improving the symptoms of some conditions. What is it for?

Helps to take care of liver health

Due to its high tannin content, agrimony is associated with positive effects on liver health. A study published in Journal of Medicinal Food determined that, due to its antioxidants and its ability to lower lipids, serves as a protector against liver injury. Furthermore, no adverse effects were observed and it was well tolerated.

Supports blood glucose control

Studies in animals show that agrimony has the potential to control high blood glucose levels. In this way, it can promote the health of people with diabetes or hyperglycemia.

An investigation disclosed in British Journal of Nutrition found that plant compounds support cellular glucose metabolism and insulin secretion. Hence its antidiabetic effect.

Helps to ease the pain

The components of this plant have also exhibited analgesic effects. Because of this, the infusion is used to soothe various ailments, such as joint and muscle. Likewise, its anti-inflammatory potential contributes to the treatment of sore throat and headaches.

Contributes to caring for cardiovascular health

The phenolic compounds contained in the plant are related to a decrease in the risk of cardiovascular diseases. Its antioxidant action not only reduces the negative impact of free radicals on the body, but it favors the reduction of high cholesterol levels. It also helps to improve circulation.

Other benefits of agrimony

  • Popular literature states that the topical application of agrimony is ideal against skin rashes, acne and psoriasis. However, the evidence is still insufficient.
  • Due to its content of silicic acid, contributes to the strengthening of hair and nails.
  • It can be an adjunct against the symptoms of respiratory diseases.
  • Its astringent effects help maintain good bladder health.
  • Bioactive compounds also serve as a supplement against digestive disorders. Specifically, it is ideal in cases of diarrhea, upset stomach and irritable bowel syndrome.

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How is agrimony prepared?

In general, the plant is consumed as an infusion. To do this, fresh or dry leaves, flowers and stems are used. You can also use its seeds, which are added ground in various recipes.

Infusion ingredients

  • 1 gram of dried agrimony.
  • 200 milliliters of water.


  • To start, bring the water to a boil.
  • Once it reaches its boiling point add the dry agrimony.
  • Let it sit for 10 minutes and strain the drink.
  • Consume it 2 times a day.

Agrimony may help ease the pain caused by irritable bowel syndrome.

Precautions and possible side effects

For now it is unknown if the plant causes side effects during pregnancy and lactation; even so, it is suggested to avoid its use in these stages. The United States Department of Agriculture (USDA) warns that agrimony can cause photodermatitis, although not in all cases.

No possible interactions have been recorded, however, in case of being under any medical treatment it is best to consult before taking the infusion of the plant. In excess, it can cause digestive discomfort due to its tannin content.

What should you remember about agrimony?

Agrimony is a medicinal plant with interesting applications. Although the evidence supports many of its benefits, it is not a first-line treatment when it comes to fighting disease. That is, under no circumstances should it replace the medical approach.

However, it can be an aid in promoting well-being. The important thing is to take it in moderation, without exceeding the recommended dose. Keep that in mind!