Coltsfoot side effects

Risks of taking coltsfoot

Side effects of coltsfoot, horsehoof or British tobacco

Liver damage

Coltsfoot, horsehoof or British tobacco contains certain amounts of hepatotoxic alkaloids (pyrrolizidine alkaloids).

  • Coltsfoot flower
    Coltsfoot flower

    Coltsfoot components are toxic when long treatments (more than 2 weeks) are carried out with this plant.

  • Animal experiments have shown that these components can cause liver damage leading to cirrhosis, hepatitis and liver cancer. Pyrrolizidine alkaloids are also found in other plants such as comfrey and borage.
  • People taking medication should consult their doctor before taking coltsfoot.
  • Due to its toxicity, this plant is contraindicated for people suffering from liver diseases.

Problems during pregnancy

Coltsfoot has traditionally been used as an abortifacient plant and can cause harm to the fetus.

A case of hepatic veno-occlusive disease has been described in a newborn, caused by taking coltsfoot infusions by the mother during pregnancy.

Animal toxicity

The alkaloids of this plant are also toxic to animals. Phototoxic activity on guinea pig skin has been described.

punto rojo More information on coltsfoot, horsehoof or British tobacco

This article was endorsed by Montserrat Enrich - Journalist specializing in edible wild plants and plant uses.
Written by Editorial Botanical-online team in charge of content writing

1 February, 2022

Other interesting articles

This material is for informational purposes only. In case of doubt, consult the doctor.
"Botanical-online" is not responsible for damages caused by self-medication.