Reed Herb - Coumadin (Warfarin Sodium) Interaction
Herbal: Reed Herb
Also Known As: Phragmites australis, Carrizo, Common Reed, Ditch Reed, Giant Reed, Phragmite, Phragmites, Reed, Roseau, Roseau Commun, Roseau des Marais, Sagne, Schilf
Drug: Warfarin Sodium
Brand names:
Coumadin, Panwarfin, Sofarin
Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
Jun 22, 2025
Interaction Details
There were no interactions found between Warfarin Sodium and Reed Herb. This does not mean the potential for an interaction does not exist, however. There is often a lack of studies and data surrounding traditional medicine, especially concerning drug interactions, so it is important to always consult your provider before making any changes to your medication regimen.
Reed Herb Overview
Phragmites australis, commonly known as common reed, is a plant with stems and rhizomes that have traditionally been used in medicine, particularly for digestive disorders. The stem and rhizome contain a variety of nutrients, including vitamin A, vitamin C, and several B-group vitamins. Additionally, they contain triterpenes such as beta-amyrin and taraxerol, as well as flavonoids like chrysoeriol, isoquercitrin, luteolin, rutin, and tricin. Besides its use for digestive disorders, common reed is believed to have diuretic effects and may stimulate sweating.
Warfarin Sodium 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.
Reed Herb - More Interactions
Reed Herb interacts with 0 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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Dr. Brian Staiger, PharmD
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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