Watercress - Warfarin Interaction
Herbal: Watercress
Also Known As: Nasturtium officinale, Berro, Berros, Brunnenkresse, Crescione di Fonte, Cresson, Cresson au Poulet, Cresson Officinal, Indian Cress, Jal-Halim, Mizu-Garashi, Nasilord, Oranda-Garashi, Scurvy Grass, Selada-Air, Tall Nasturtium
Drug: Warfarin
Brand names:
Warfarin
Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
Jul 22, 2023
Interaction Details
Warfarin is classified as belonging to the following category: Warfarin (Coumadin)
Watercress contains vitamin K. Consuming large amounts of watercress might antagonize the anticoagulant effects of warfarin.
Interaction Rating
Likelihood of Occurrence
PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
References
- Bolton-Smith C, Price RJ, Fenton ST, et al. Compilation of a provisional UK database for the phylloquinone (vitamin K1) content of foods. Br J Nutr 2000;83:389-99.
Watercress Overview
Watercress is a leafy green vegetable that is often considered a type of salad green. It is a rich source of vitamins and minerals, including Vitamin C, Vitamin K, Vitamin A, and Vitamin E. It also contains a good amount of calcium, iron, and folate.
Watercress has been used as a dietary supplement for its potential health benefits. It is high in antioxidants which can help protect the body from damage caused by free radicals. Additionally, it contains compounds that may help reduce inflammation in the body, which may lower the risk of certain chronic diseases.
Warfarin Overview
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Warfarin is used to prevent blood clots from forming or growing larger in your blood and blood vessels. It is prescribed for people with certain types of irregular heartbeat, people with prosthetic (replacement or mechanical) heart valves, and people who have suffered a heart attack. Warfarin is also used to treat or prevent venous thrombosis (swelling and blood clot in a vein) and pulmonary embolism (a blood clot in the lung). Warfarin is in a class of medications called anticoagulants ('blood thinners'). It works by decreasing the clotting ability of the blood.
Watercress - More Interactions
Watercress interacts with 6 drugs
Interaction Rating Key
These severity listings are for informational use only. Never start, stop or otherwise change your therapy before speaking with your provider.
| Major | The combined use of these agents is strongly discouraged as serious side effects or other negative outcomes could occur. |
| Moderate | Use cautiously under the care of a healthcare professional or avoid this combination. A significant interaction or negative outcome could occur. |
| Minor | Be aware that there is a chance of an interaction. Watch for warning signs of a potential interaction. |
| Unknown | No interactions have been reported or no interaction data is currently available. |
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Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC
Drug descriptions are provided by MedlinePlus.
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In addition to being a clinical pharmacist specializing in pharmacotherapy, Dr. Brian Staiger is a registered herbalist through the American Herbalist Guild. He has combined his passion for pharmacy practice with the study of medical ethnobotany to improve patient care. Feel free to reach out about any of your herbal or medication questions!
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