Possible Interactions with: Quercetin
If you are being treated with any of the following medications, you should not use quercetin supplements without first talking to your health care provider.
Anticoagulants (blood thinners) -- Quercetin may enhance the effect of these drugs, increasing your risk for bleeding:
- Warfarin (Coumadin)
- Clopidogrel (Plavix)
Chemotherapy -- Test tube and animal studies suggest that quercetin may enhance the effects of doxorubicin and cisplatin, two chemotherapy medications used to treat cancer. In addition, some doctors believe taking antioxidants at the same time as chemotherapy can be harmful, while others believe it can be helpful. Talk to your oncologist before taking any supplements if you are undergoing chemotherapy.
Corticosteroids -- Quercetin may cause these drugs to stay in the body longer.
Cyclosporine -- Quercetin may interfere with the body's absorption of this drug, which is used to suppress the immune system.
- Last reviewed on 9/23/2007
- Steven D. Ehrlich, NMD, private practice specializing in complementary and alternative medicine, Phoenix, AZ. Review provided by VeriMed Healthcare Network.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- 2013 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.