QUERCETIN: Overview, Uses, Side Effects, Precautions, Interactions, Dosing

Quercetin: Overview

Quercetin is a plant pigment (flavonoid) that is found in many fruits, vegetables, and herbs. It has antioxidant and anti-inflammatory properties, and has been studied for a variety of potential health benefits.

Quercetin: Uses

Quercetin has been studied for a variety of potential health uses, including:

  • Reducing inflammation
  • Boosting the immune system
  • Lowering blood pressure
  • Improving cholesterol levels
  • Reducing the risk of heart disease
  • Preventing cancer
  • Managing allergies
  • Improving asthma symptoms
  • Reducing the severity of viral infections

Quercetin: Side Effects

Quercetin is generally safe for most people when taken short-term. However, it can cause some side effects, such as:

  • Headache
  • Nausea
  • Diarrhea
  • Stomach cramps
  • Kidney stones (at very high doses)

Quercetin: Precautions

Quercetin can interact with certain medications, such as blood thinners, antibiotics, and cyclosporine. It is important to talk to your doctor before taking quercetin if you are taking any other medications.

Quercetin is not recommended for pregnant or breastfeeding women.

Quercetin: Interactions

Quercetin can interact with certain medications, including:

  • Blood thinners (such as warfarin)
  • Antibiotics (such as ciprofloxacin and levofloxacin)
  • Cyclosporine
  • CYP3A4 substrates (such as statins, calcium channel blockers, and some antidepressants)

It is important to talk to your doctor before taking quercetin if you are taking any other medications.

Quercetin: Dosing

The recommended dose of quercetin varies depending on the condition being treated. For general health benefits, a dose of 500-1000 mg per day is typically used. For specific conditions, such as allergies or asthma, higher doses may be necessary.

It is important to start with a low dose and increase gradually as tolerated.

Conclusion

Quercetin is a plant pigment with a variety of potential health benefits. It is generally safe for most people when taken short-term, but it can interact with certain medications. It is important to talk to your doctor before taking quercetin, especially if you are pregnant, breastfeeding, or taking any other medications.