Overview

SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 11 Reviews
8.8
Supplement Facts
Serving Size:  1 Vegetarian capsule
Amount Per Serving
%DV
Bio-Quercetin® Proprietary Blend providing 35% quercetin (10 mg) [from Japanese sophora concentrate flower bud)], 30% galactomannans (8 mg) [from fenugreek (seed)]
30 mg
**

Top Medical Research Studies

We examined how quercetin, a natural compound, can help alleviate chronic cough by targeting P2X3 receptors, which are involved in cough reflexes. The study involved testing its effects on male mice and guinea pigs.

Results showed that quercetin effectively modulated these receptors without causing adverse taste effects, unlike other drugs like gefapixant. This potential opens up new avenues for treating chronic cough without unpleasant side effects.
Read More

Most Useful Reviews

9.5
Cough reduction
After enduring COVID, I've found quercetin essential for managing my chronic cough and supporting my respiratory health. I learned about it half a year ago during post-COVID recovery discussions. Following my doctor's advice, I've been taking it for two months alongside other medications. The results have been excellent: my cough has noticeably decreased, and I experience far fewer obstructions and seasonal colds. Quercetin also appears to ease COVID symptoms for friends, speeding up recovery without causing allergic reactions or other side effects.
Read More
9.5
Overall health booster
Quercetin serves as a strong natural bioflavonoid that enhances the body's defence against harmful factors, notably benefiting those with broncho-pulmonary conditions such as pneumonia, chronic bronchitis, and asthma. It facilitates a quicker recovery and lessens chronic cough, improving bronchial function. The product's extensive biological properties offer numerous health benefits, making it a valuable supplement for immune and respiratory health.
Read More
9.5
Bronchial support
Quercetin is beneficial for those with pneumonia, chronic bronchitis, asthma, and allergies. It promotes faster recovery, reduces seizures, and helps alleviate the chronic cough while improving bronchial patency. Its effects are noted during the course of treatment. I would recommend this bioavailable product for those suffering from respiratory issues.
Read More

Medical Researches

SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
  • All Researches
We examined how quercetin, a natural compound, can help alleviate chronic cough by targeting P2X3 receptors, which are involved in cough reflexes. The study involved testing its effects on male mice and guinea pigs.

Results showed that quercetin effectively modulated these receptors without causing adverse taste effects, unlike other drugs like gefapixant. This potential opens up new avenues for treating chronic cough without unpleasant side effects.
Read More

User Reviews

USERS' SCORE
Good
Based on 11 Reviews
8.8
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Cough reduction
After enduring COVID, I've found quercetin essential for managing my chronic cough and supporting my respiratory health. I learned about it half a year ago during post-COVID recovery discussions. Following my doctor's advice, I've been taking it for two months alongside other medications. The results have been excellent: my cough has noticeably decreased, and I experience far fewer obstructions and seasonal colds. Quercetin also appears to ease COVID symptoms for friends, speeding up recovery without causing allergic reactions or other side effects.
Read More
9.5
Overall health booster
Quercetin serves as a strong natural bioflavonoid that enhances the body's defence against harmful factors, notably benefiting those with broncho-pulmonary conditions such as pneumonia, chronic bronchitis, and asthma. It facilitates a quicker recovery and lessens chronic cough, improving bronchial function. The product's extensive biological properties offer numerous health benefits, making it a valuable supplement for immune and respiratory health.
Read More
9.5
Bronchial support
Quercetin is beneficial for those with pneumonia, chronic bronchitis, asthma, and allergies. It promotes faster recovery, reduces seizures, and helps alleviate the chronic cough while improving bronchial patency. Its effects are noted during the course of treatment. I would recommend this bioavailable product for those suffering from respiratory issues.
Read More
9.5
Year-round relief
I've been taking quercetin for over a year due to its lung protection benefits post-COVID. Remarkably, it has eliminated my chronic allergy cough. I switched to Life Extension Bio-Quercetin for better absorption and am very satisfied with the results. The quality is evident, and I've noticed significant health benefits. I'll definitely continue using it.
Read More
10
Cough completely gone
The child consumed it when suffering from a cough, and within approximately 12 days, she ceased coughing and has been thriving ever since.
Read More

Frequently Asked Questions

A chronic cough is defined as a persistent cough that lasts for more than eight weeks in adults and four weeks in children. Unlike an acute cough, which typically resolves within a few weeks and is often linked to temporary conditions like colds or the flu, a chronic cough can indicate an underlying health issue that may require medical attention. Common causes of chronic cough include asthma, allergies, gastroesophageal reflux disease (GERD), chronic bronchitis, or even environmental irritants such as smoke or pollution.

When dealing with a chronic cough, it's essential to evaluate the problem holistically. Observing patterns, accompanying symptoms, and any potential triggers can be instrumental in diagnosis. If you're experiencing a lingering cough, consulting a healthcare provider can help determine the root cause and the most effective treatment options, which may range from lifestyle adjustments and over-the-counter remedies to prescription medications or further diagnostic tests.

Quercetin is a naturally occurring flavonoid that is found in a variety of fruits, vegetables, and grains. Known for its antioxidant properties, quercetin is believed to help combat oxidative stress in the body, which can contribute to various health issues. You can commonly find it in foods such as apples, onions, berries, and citrus fruits, as well as in leafy greens. This makes it a popular dietary supplement among health enthusiasts looking to enhance their overall wellness.

Beyond its antioxidant capacity, quercetin is also being researched for its potential anti-inflammatory effects and benefits for immune support. Some studies suggest that it may help reduce allergy symptoms and improve exercise performance by decreasing muscle fatigue. With its wide range of potential health benefits, quercetin is often marketed as a natural remedy for various ailments, although it’s essential to consult a healthcare professional before starting any new supplement regimen to ensure its safety and effectiveness for your specific needs.

Quercetin, a flavonoid found in various fruits, vegetables, and grains, has gained attention for its potential health benefits, including its anti-inflammatory and antioxidant properties. Some studies suggest that quercetin may help alleviate symptoms related to respiratory conditions due to its ability to modulate inflammatory responses. Chronic coughs are often linked to conditions such as asthma, allergies, and other respiratory issues, and quercetin's ability to reduce inflammation in the airways could theoretically provide some relief. However, research specifically focusing on quercetin's effectiveness for chronic cough is limited, and results may vary between individuals.

While adding quercetin-rich foods to your diet may be beneficial for overall health and possibly help manage some respiratory symptoms, it is essential to consult with a healthcare professional for tailored advice. They can help determine the underlying cause of the chronic cough and recommend appropriate treatments, whether they be lifestyle changes, dietary adjustments, or medications. In summary, though quercetin shows promise in some areas, more targeted research is needed to definitively establish its efficacy against chronic cough.

Based on user reviews, the time it takes to see results from quercetin for chronic cough varies among individuals. Some users report significant improvements within just a few days of starting the supplement. For instance, one user noted that after a persistent cough, they felt considerably better after only a few days of taking quercetin (Read Review). Another user witnessed a remarkable recovery within two days when using it alongside other vitamins, which notably alleviated symptoms of cough and fever (Read Review).

However, some users noted a longer timeframe for more significant results. One reviewer mentioned that after consistently using quercetin for two months, their cough had noticeably decreased (Read Review). Additionally, another user emphasized that quercetin requires consistent use to be effective, suggesting that while some may experience quick results, others might need to integrate it into their routine over a more extended period for optimal benefits (Read Review). Overall, while quick relief may be possible for some, others might find a more gradual improvement over several weeks.

Quercetin has emerged as a potential supplement for alleviating chronic cough, supported by scientific research that delves into its mechanism and effectiveness. A study focused on quercetin's ability to target P2X3 receptors, which play a crucial role in the cough reflex. The research demonstrated that quercetin effectively modulates these receptors in animal models without producing the adverse taste effects commonly associated with other cough medications, such as gefapixant [1]. This indicates that quercetin could be a promising candidate for treating chronic cough while minimizing the discomfort often experienced with more conventional treatments.

Given the preliminary nature of the research, further studies in humans are still necessary to establish definitive efficacy and safety profiles. Nonetheless, the findings suggest that quercetin may present an innovative approach to managing chronic cough, particularly for individuals seeking a more natural alternative to traditional pharmacological solutions [1]. As always, consulting with a healthcare provider before starting any new supplement is advisable, especially for chronic conditions like cough that may have multifaceted underlying causes.

Based on user reviews, individuals taking quercetin have reported various improvements in symptoms related to chronic cough and respiratory issues. Many users have experienced a notable decrease in cough severity and frequency, with one user mentioning a significant reduction in their chronic allergy cough after a year of use (Read Review). Another account mentioned the cessation of coughing within approximately 12 days in a child, highlighting the product's effectiveness (Read Review). For some, benefits were observed rapidly; for instance, one reviewer noted a dramatic recovery from acute respiratory symptoms within just two days (Read Review).

Consumers also indicate enhanced respiratory health overall, with reports of fewer seasonal colds and better bronchial function in users dealing with conditions like chronic bronchitis and asthma (Read Review). However, it’s important to note that individual results can vary, and some users have indicated the need for consistent use for maximum benefit, as evidenced by a review discussing the gradual yet significant alleviation of symptoms with continued intake (Read Review). Thus, while many find quercetin beneficial, the timeline and extent of symptom relief may differ based on individual circumstances.

Based on user reviews, many individuals have found quercetin to be most effective when combined with other supplements. For instance, one user reported a remarkable recovery from a severe cough and high temperatures within just two days after taking quercetin alongside several vitamins for their daughters suffering from acute respiratory infections (Read Review). Another reviewer emphasized that their own significant improvement in managing a chronic cough stemmed from a combination of quercetin and other medications, which they complemented with a healthy lifestyle (Read Review).

Additionally, users noted that quercetin appears to enhance the effectiveness of other treatments for respiratory issues. For instance, one reviewer mentioned that quercetin served as a strong natural bioflavonoid that benefits those with broncho-pulmonary conditions, facilitating faster recovery when combined with other supportive measures (Read Review). This suggests that while quercetin can provide notable benefits on its own, it may be particularly powerful in conjunction with other vitamins and treatments, making it a versatile option in managing chronic cough and overall respiratory health.

Based on user reviews regarding Quercetin for treating chronic cough, many users have reported positive outcomes after incorporating this supplement into their routines. For instance, one user shared that after taking Quercetin for two months, their cough noticeably decreased, supporting their respiratory health post-COVID, which emphasizes the potential benefits of this bioflavonoid for respiratory conditions (Read Review). Another user noted that Quercetin has shown significant effectiveness in alleviating symptoms associated with conditions like asthma, chronic bronchitis, and pneumonia, indicating its role in enhancing bronchial function and speeding up recovery from respiratory ailments (Read Review).

In terms of dosage, some users have suggested a tailored approach to find the right amount that works for them. For example, one individual settled on a dosage of one capsule daily, as increasing it to two made it difficult for them to sleep (Read Review). Others reported quick positive responses, such as significant improvements within days of starting their regimen, which illustrates the variability in how swiftly users can expect to see results (Read Review). Overall, it appears that users advocate for a careful selection of dosage and consistent use of Quercetin to effectively manage chronic cough and respiratory issues.

9.5
Quick relief experienced
The capsules are quite small and simple to swallow. I had been coughing persistently for a long time, but after just a few days of taking them, I felt significantly better.
9.5
Quick recovery
I purchased quercetin for my daughters after seeing them suffer from acute respiratory infections post-holidays. Along with several vitamins, it worked wonders. Within two days, after a severe cough and high temperature, all symptoms vanished. This was the quickest recovery I've witnessed, and I highly recommend it.
9.5
Cough reduction
After enduring COVID, I've found quercetin essential for managing my chronic cough and supporting my respiratory health. I learned about it half a year ago during post-COVID recovery discussions. Following my doctor's advice, I've been taking it for two months alongside other medications. The results have been excellent: my cough has noticeably decreased, and I experience far fewer obstructions and seasonal colds. Quercetin also appears to ease COVID symptoms for friends, speeding up recovery without causing allergic reactions or other side effects.
8.8
Chronic rhinitis remedy
I ordered quercetin to combat my chronic vasomotor rhinitis, which has affected me for over a decade. It's an excellent remedy but requires consistent use. Facing a dilemma between enduring vasoconstrictor sprays or taking quercetin, I prefer quercetin given its lesser harmfulness and encouraging reviews regarding its benefits in treating COVID-19.
9.5
Year-round relief
I've been taking quercetin for over a year due to its lung protection benefits post-COVID. Remarkably, it has eliminated my chronic allergy cough. I switched to Life Extension Bio-Quercetin for better absorption and am very satisfied with the results. The quality is evident, and I've noticed significant health benefits. I'll definitely continue using it.
10
Cough completely gone
The child consumed it when suffering from a cough, and within approximately 12 days, she ceased coughing and has been thriving ever since.
9.5
Overall health booster
Quercetin serves as a strong natural bioflavonoid that enhances the body's defence against harmful factors, notably benefiting those with broncho-pulmonary conditions such as pneumonia, chronic bronchitis, and asthma. It facilitates a quicker recovery and lessens chronic cough, improving bronchial function. The product's extensive biological properties offer numerous health benefits, making it a valuable supplement for immune and respiratory health.
8
Allergy relief
Good afternoon! I began taking quercetin to reduce allergic reactions to toxic medications. After recommendations from a therapist, I took it out of despair. While my allergies, including the chronic cough, haven't fully disappeared, they have significantly lessened. My overall condition has improved, giving me more energy and clarity. The toxic effects of my medications have also decreased. I settled on a dosage of one capsule daily because two made it difficult to sleep at night.
We examined how quercetin, a natural compound, can help alleviate chronic cough by targeting P2X3 receptors, which are involved in cough reflexes. The study involved testing its effects on male mice and guinea pigs.

Results showed that quercetin effectively modulated these receptors without causing adverse taste effects, unlike other drugs like gefapixant. This potential opens up new avenues for treating chronic cough without unpleasant side effects.

References

  1. Guo CR, Zhang ZZ, Zhou X, Sun MY, Li TT, et al. Chronic cough relief by allosteric modulation of P2X3 without taste disturbance. Nat Commun. 2023;14:5844. doi:10.1038/s41467-023-41495-0
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