Important Instructions for Quercetin

Dosing Information

As with most dietary supplements, there is no well-established standard dosage for this substance, although general guidelines may be obtained from practical experience with the supplement.
(Click Quercetin Dosage for more information.)

Side Effects of Quercetin

Even though it is a "natural" product, quercetin can cause side effects. Some of the reported side effects include:
(Click Quercetin Side Effects to learn more, including potentially serious side effects that you should report immediately to your healthcare provider.)

Drug Interactions

Theoretically, quercetin may interact with some medications (see Quercetin Drug Interactions).

Safety of Quercetin

For many adults, short-term use seems to be fairly safe when used in moderation. Some people may be more likely to experience problems due to quercetin. Therefore, you should talk with your healthcare provider prior to taking it medicinally if you have:
  • Kidney disease, such as kidney failure (renal failure)
  • Any chronic or severe medical condition
  • Any allergies, including allergies to foods, dyes, or preservatives.
Also, let your healthcare provider know if you are:
Make sure to tell your healthcare provider about all other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
(Click Is Quercetin Safe? for more information, including any available warnings and precautions.)
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Quercetin Supplement Information

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