Potential Drug Interactions With Quercetin

Given quercetin’s potent effects, it may enhance or interfere with certain prescribed medications and treatments, such as:

Blood thinners.¹⁷
Chemotherapy agents doxorubicin and cisplatin.¹⁷
Corticosteroids.¹⁷
Liver-Metabolized Drugs—may increase the effects and side effects of cyclosporine and other drugs processed in the liver by slowing down the metabolic process.^17-19
Quinolone antibiotics—may reduce the efficacy of these types of antibiotics, also known as fluoroquinolones.^4,¹⁰

By inhibiting actions of the protein in cell membranes responsible for transporting a number of different drugs (e.g., Cardizem®, Zantac™, Allegra®, and Lanoxin™), quercetin may increase the absorption and the risk of side effects.¹⁹

An immunosuppressant drug typically used to treat
rheumatoid arthritis and psoriasis.

Disclaimer: This website is not intended to replace professional consultation, diagnosis, or treatment by a licensed physician. If you require any medical related advice, contact your physician promptly. Information at Quercetin.com is exclusively of a general reference nature. Do not disregard medical advice or delay treatment as a result of accessing information at this site.

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