Overview

SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Excellent
Based on 13 Reviews
9
Supplement Facts
Serving Size:  1 Vegetarian Capsule
Amount Per Serving
%DV
Vitamin C (from ascorbic acid, camu-camu berry extract)
30 mg
33%
Quercetin (as quercetin dihydrate)
250 mg
**
Optimized Food Blend[onion (bulb) (extracts), bitter orange bioflavonoids (peel and fruit), apple (fruit)
220 mg
**
Camu-camu extract (wildcrafted berry)
50 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
Increased energy
I have increased energy and strength. After two weeks of taking this, my shortness of breath finally vanished; now I can walk and talk quickly without choking! This Quercetin has greatly improved my immunity, alleviating pain, and I’ve noticed relief from chronic rhinitis—my runny nose no longer torments me!
Read More
9.5
Improved lung condition
Works brilliantly! The doctor recommended this after a respiratory infection to enhance my lung condition due to slight fibrosis and shortness of breath. I noticed significant improvement by the third day; my energy increased, and after two weeks my breathing issues disappeared. Quercetin also helped with my chronic rhinitis, as my runny nose no longer bothers me. Overall, the results exceeded my expectations!
Read More
9.5
Faster healing
Cheaper and faster! Buying from iherb was much more economical. As a post-Covid patient, I sought this after reading about its efficacy in lung healing. I started taking it after finishing my 14-day quarantine, and now I can breathe deeply without coughing.
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
Excellent
Based on 13 Reviews
9
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Increased energy
I have increased energy and strength. After two weeks of taking this, my shortness of breath finally vanished; now I can walk and talk quickly without choking! This Quercetin has greatly improved my immunity, alleviating pain, and I’ve noticed relief from chronic rhinitis—my runny nose no longer torments me!
Read More
9.5
Improved lung condition
Works brilliantly! The doctor recommended this after a respiratory infection to enhance my lung condition due to slight fibrosis and shortness of breath. I noticed significant improvement by the third day; my energy increased, and after two weeks my breathing issues disappeared. Quercetin also helped with my chronic rhinitis, as my runny nose no longer bothers me. Overall, the results exceeded my expectations!
Read More
9.5
Faster healing
Cheaper and faster! Buying from iherb was much more economical. As a post-Covid patient, I sought this after reading about its efficacy in lung healing. I started taking it after finishing my 14-day quarantine, and now I can breathe deeply without coughing.
Read More
9.5
Cough vanished
Excellent! After struggling with a cough post-Covid, I tried numerous remedies without success until I tried quercetin. After taking two capsules daily, my chronic cough began to fade, and breathing became easier—all thanks to quercetin.
Read More
9.5
Cough improvement
I have been buying this for my mother-in-law for years, who suffers from chronic bronchitis. After using quercetin along with other medications, her chronic cough has nearly disappeared, and her allergy symptoms have significantly reduced. The antioxidant properties of quercetin provide numerous health benefits.
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, many individuals report experiencing improvements in their chronic cough within one to two weeks of starting Quercetin. For instance, one user noticed significant relief after just three days of use, stating that their breathing issues disappeared after two weeks (Read Review). Another user echoed a similar sentiment, finding that their chronic cough began to fade after two weeks of taking the supplement (Read Review).

Some reviews indicate that even a week of use can lead to noticeable improvements in respiratory symptoms, including cough and phlegm production (Read Review). Overall, users seem to consistently report positive effects on their chronic cough, suggesting that a short duration of use, typically around one to two weeks, is often enough to start seeing results.

Recent scientific research highlights quercetin, a natural compound, as a promising option for alleviating chronic cough. A study focusing on its effects revealed that quercetin targets P2X3 receptors, which play a crucial role in the cough reflex. The research demonstrated that quercetin successfully modulates these receptors in both male mice and guinea pigs, potentially offering a way to treat chronic cough without the adverse taste effects commonly associated with other drugs, such as gefapixant [1].

This finding suggests that quercetin could be a valuable addition to the repertoire of treatments available for individuals suffering from chronic cough. Given its effectiveness and lack of unpleasant side effects, quercetin may open up new avenues for research and treatment options in this area. However, further studies and clinical trials in humans will be necessary to fully understand its potential benefits and establish recommended dosages.

Users have reported a variety of improvements in symptoms after taking Quercetin, particularly relating to respiratory issues and overall well-being. Many individuals highlighted significant enhancements in their ability to breathe comfortably and resume normal activities. For instance, one user noted that after just two weeks of use, their shortness of breath disappeared, allowing them to walk and talk without difficulty (Read Review). Another user, recovering from Covid, shared that they could breathe deeply without coughing after starting the supplement (Read Review).

In addition to respiratory relief, some users mentioned improvements in allergy symptoms, with reduced occurrences of chronic cough and rhinitis. For example, one user reported that their mother's chronic cough linked to bronchitis nearly vanished after consistent use alongside other medications (Read Review). Others either experienced alleviation from chronic coughs and phlegm production within just a week of use (Read Review) or saw improvements in respiratory symptoms after continuing for a month (Read Review). Overall, the anecdotal evidence suggests that many users achieve notable relief from respiratory and allergy-related symptoms, although individual results can vary.

Users have reported positive experiences when combining Quercetin with other supplements, particularly for managing chronic cough and respiratory symptoms. For example, one user's mother, who struggles with chronic bronchitis, found that Quercetin worked effectively alongside her other medications, leading to a significant reduction in her chronic cough and allergy symptoms (Read Review). Additionally, another user mentioned that Quercetin played a crucial role in alleviating their chronic cough after trying various remedies, highlighting its effectiveness in a multi-supplement approach (Read Review).

Moreover, users have noted that the use of Quercetin has not only helped with coughs but also improved respiratory conditions and other related symptoms. For instance, a user shared their experience of Quercetin aiding their post-Covid recovery, enabling them to breathe deeply without coughing (Read Review). This suggests that many find success in combining Quercetin with other treatments, amplifying its benefits in managing chronic cough and related health issues.

Based on user reviews, there seems to be a common theme regarding the dosing of Quercetin for treating chronic cough. Many users report positive outcomes after taking two capsules daily. For instance, one reviewer noted that after consistently using two capsules a day, their chronic cough began to fade, and breathing became easier (Read Review). Another user echoed a similar sentiment regarding pronounced improvements in respiratory symptoms after a week of use (Read Review).

Overall, many testimonials highlight that Quercetin not only helps with chronic cough but may also provide benefits in improving lung function and alleviating allergy symptoms. Users experiencing chronic coughs due to conditions like asthma or post-Covid symptoms mention that Quercetin has been significantly beneficial in their recovery journey, often leading to the disappearance of coughs or reduced respiratory discomfort (Read Review). While individual experiences may vary, the suggested dosing of two capsules daily appears to be a recurrent recommendation among satisfied users.

9.5
Improved lung condition
Works brilliantly! The doctor recommended this after a respiratory infection to enhance my lung condition due to slight fibrosis and shortness of breath. I noticed significant improvement by the third day; my energy increased, and after two weeks my breathing issues disappeared. Quercetin also helped with my chronic rhinitis, as my runny nose no longer bothers me. Overall, the results exceeded my expectations!
7.5
Lung relief
I feel it has a notable effect on my lungs. After a week of use, respiratory symptoms, including my chronic cough and phlegm, have diminished, although the absorption rate could be improved.
9.5
Increased energy
I have increased energy and strength. After two weeks of taking this, my shortness of breath finally vanished; now I can walk and talk quickly without choking! This Quercetin has greatly improved my immunity, alleviating pain, and I’ve noticed relief from chronic rhinitis—my runny nose no longer torments me!
9.5
Faster healing
Cheaper and faster! Buying from iherb was much more economical. As a post-Covid patient, I sought this after reading about its efficacy in lung healing. I started taking it after finishing my 14-day quarantine, and now I can breathe deeply without coughing.
9.5
Cough improvement
I have been buying this for my mother-in-law for years, who suffers from chronic bronchitis. After using quercetin along with other medications, her chronic cough has nearly disappeared, and her allergy symptoms have significantly reduced. The antioxidant properties of quercetin provide numerous health benefits.
9.5
Allergy relief
Quercetin has natural antihistamine and anti-inflammatory properties that helped my allergies and asthma. After a month of taking it daily, my husband’s allergic cough has disappeared, and his condition has improved.
9.5
Cough vanished
Excellent! After struggling with a cough post-Covid, I tried numerous remedies without success until I tried quercetin. After taking two capsules daily, my chronic cough began to fade, and breathing became easier—all thanks to quercetin.
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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