Overview
Quercetin has antioxidant and anti-inflammatory effects that might help reduce swelling, kill cancer cells, control blood sugar, and help prevent heart disease.
Quercetin is most commonly used for conditions of the heart and blood vessels and to prevent cancer. It is also used for arthritis, bladder infections, and diabetes, but there is no strong scientific evidence to support most of these uses. There is also no good evidence to support using quercetin for COVID-19.
Uses & Effectiveness ?
Possibly Ineffective for
Side Effects
When applied to the skin: There isn't enough reliable information to know if quercetin is safe or what the side effects might be.
Special Precautions and Warnings
Interactions ?
Antibiotics (Quinolone antibiotics) interacts with QUERCETIN
Some scientists think that taking quercetin along with certain antibiotics, called quinolone antibiotics, might decrease the effects of these antibiotics. But it's too soon to know if this is a big concern.
Cyclosporine (Neoral, Sandimmune) interacts with QUERCETIN
Quercetin might decrease how quickly the body breaks down cyclosporine. Taking quercetin with cyclosporine might increase the effects and side effects of cyclosporine.
Medications changed by the liver (Cytochrome P450 2C8 (CYP2C8) substrates) interacts with QUERCETIN
Some medications are changed and broken down by the liver. Quercetin might change how quickly the liver breaks down these medications. This could change the effects and side effects of these medications.
Medications changed by the liver (Cytochrome P450 2C9 (CYP2C9) substrates) interacts with QUERCETIN
Some medications are changed and broken down by the liver. Quercetin might change how quickly the liver breaks down these medications. This could change the effects and side effects of these medications.
Medications changed by the liver (Cytochrome P450 2D6 (CYP2D6) substrates) interacts with QUERCETIN
Some medications are changed and broken down by the liver. Quercetin might change how quickly the liver breaks down these medications. This could change the effects and side effects of these medications.
Medications changed by the liver (Cytochrome P450 3A4 (CYP3A4) substrates) interacts with QUERCETIN
Some medications are changed and broken down by the liver. Quercetin might change how quickly the liver breaks down these medications. This could change the effects and side effects of these medications.
Medications moved by pumps in cells (P-Glycoprotein substrates) interacts with QUERCETIN
Quercetin medications are moved in and out of cells by pumps. Quercetin might change how these pumps work and change how much medication stays in the body. In some cases, this might change the effects and side effects of a medication.
Warfarin (Coumadin) interacts with QUERCETIN
Quercetin might increase the effects that warfarin has on the body. Taking quercetin and warfarin together might increase the effects and side effects of warfarin, which could increase the risk of bruising and bleeding.
Medications for high blood pressure (Antihypertensive drugs) interacts with QUERCETIN
Quercetin might lower blood pressure. Taking quercetin along with medications that lower blood pressure might cause blood pressure to go too low. Monitor your blood pressure closely.
Medications moved by pumps in cells (Organic anion-transporting polypeptide substrates) interacts with QUERCETIN
Some medications are moved in and out of cells by pumps. Quercetin might change how these pumps work and change how much medication stays in the body. In some cases, this might change the effects and side effects of a medication.
Midazolam (Versed) interacts with QUERCETIN
Quercetin might increase how quickly the body breaks down midazolam. Taking quercetin with midazolam might reduce the effects of midazolam.
Pravastatin (Pravachol) interacts with QUERCETIN
Quercetin might decrease how quickly the body gets rid of pravastatin. Taking quercetin with pravastatin might increase the effects and side effects of pravastatin.
Medications for diabetes (Antidiabetes drugs) interacts with QUERCETIN
Quercetin might lower blood sugar levels. Taking quercetin along with diabetes medications might cause blood sugar to drop too low. Monitor your blood sugar closely.
Diclofenac (Voltaren, others) interacts with QUERCETIN
Quercetin might decrease how quickly the body breaks down diclofenac. Taking quercetin with diclofenac might increase the effects and side effects of diclofenac.
Losartan (Cozaar) interacts with QUERCETIN
Quercetin might change how the body absorbs and breaks down losartan. Taking quercetin with losartan might change the effects and side effects of losartan.
Quetiapine (Seroquel) interacts with QUERCETIN
Quercetin might increase levels of quetiapine. Taking quercetin and quetiapine together might increase the effects and side effects of quetiapine.
Medications moved by pumps in cells (Organic Anion Transporter 1 (OAT1) Substrates) interacts with QUERCETIN
Some medications are moved in and out of cells by pumps. Quercetin might change how these pumps work and change how much medication stays in the body. In some cases, this might change the effects and side effects of a medication.
Medications moved by pumps in cells (Organic Anion Transporter 3 (OAT3) Substrates) interacts with QUERCETIN
Some medications are moved in and out of cells by pumps. Quercetin might change how these pumps work and change how much medication stays in the body. In some cases, this might change the effects and side effects of a medication.
Mitoxantrone interacts with QUERCETIN
Quercetin might increase levels of mitoxantrone. Taking quercetin and mitoxantrone together might increase the effects and side effects of mitoxantrone.
Prazosin (Minipress) interacts with QUERCETIN
Quercetin might increase levels of prazosin. Taking quercetin and prazosin together might increase the effects and side effects of prazosin.
Sulfasalazine (Azulfidine) interacts with QUERCETIN
Quercetin might increase levels of sulfasalazine. Taking quercetin and sulfasalazine together might increase the effects and side effects of sulfasalazine.
Moderate Interaction
Be cautious with this combination
Dosing
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