Herbs and their Anticoagulant Properties

Herbs with anticoagulant properties are listed on the left; on the right is the effect of each herb.

  • Alfalfa = Coumarin (acts as an anticoagulant)
  • Angelica = Coumarin
  • Aniseed = Coumarin
  • Arnica = Coumarin
  • Asafoetida = Coumarin, anticoagulant in vivo
  • Bogbean = Hemolytic activity
  • Cassla = Inhibits platelet aggregation
  • Celery, seed or extract = Coumarin
  • Chamomile, German or Roman = Coumarin
  • Clove = Eugenol, a powerful inhibitor of platelet activity
  • Dehydroepiandrosterone (DHEA) = Fibrinolytic potential
  • Evening primrose oil (Primula veris, Primula clatior) = May decrease platelet aggregation and increase thrombolytic activity
  • Feverfew = Inhibits platelet aggregation in vitro
  • Fucus = Anticoagulant action
  • Garlic = May prolong prothrombin time
  • Ginger = Inhibition of platelet activity
  • Ginkgo = Inhibits platelet aggregation
  • Ginseng, Panax = Reduction of blood coagulation/decreases INR
  • Horse chestnut = Coumarin
  • Horseradish = Peroxidase stimulates synthesis of arachidonic acid metabolites
  • Licorice = Inhibition of platelet activity
  • Meadowsweet = Salicylate (acts as an antiplatelet agent)
  • Melilot = Coumarin
  • Poplar = Salicylate
  • Prickly ash, Northern and Southern = Coumarin
  • Quassia = Coumarin
  • Red clover = Coumarin
  • Sweet woodruff = Coumarin
  • Tonka beans = Coumarin
  • Willow = Salicylate