Typical anti-histamine medications can leave our patients and clients feeling drugged, sleepy, or foggy-brained. They can have other potent (but seldom publicized) side effects such as dizziness, blurred vision, nausea, or making an enlarged prostate or a yeast infection worse. I encourage my clients to avoid them whenever possible.
Quercetin is a natural extract from plant foods like onions, apples, tea, berries, buckwheat, and citrus fruit (technically a flavonol). It actually calms the immune system to prevent histamine release. I suggest 500-1000mg twice daily (with or without food), depending on severity of symptoms. Quercetin combined with bromelain (an extract from pineapples) enhances absorption and is desirable if available (and if no pineapple allergy). A very recent study highlights quercetin’s usefulness in asthma as well.
Specific contraindications for quercetin include your patients and clients who are (1) currently taking antibiotics (quercetin interference with how antibiotics bind to bacteria), (2) currently taking blood thinners (e.g. Coumadin, Plavix), and (3) women using estrogen hormone replacement therapy. As always, make sure clients who have concerns with taking other medications check with their doctor.
You may access an in-depth technical review of quercetin’s mode of action (the 2nd half of the article features many references to the benefits of quercetin in a variety of diseases).
If you’d like to learn more about quercetin specifically for seasonal allergy use, check out this related post.
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