Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 2 Researches
8.5
USERS' SCORE
Good
Based on 144 Reviews
8.2
Supplement Facts
Serving Size: 2 Veg Capsules
Amount Per Serving
%DV
Quercetin
800 mg
**
Bromelain (2,400 GDU/g)
165 mg
**
Top Medical Research Studies
8
We uncovered how quercetin, alongside a specialized compound called PSFL2915, affects chronic cough by interacting with a specific part of a receptor known as P2X3.
Our tests showed that quercetin could effectively reduce coughing in male mice and guinea pigs without causing taste disturbances—a drawback seen with other similar medications.
This suggests that quercetin could be a promising alternative to existing treatments for chronic cough, offering a potential new avenue for relief.
Our tests showed that quercetin could effectively reduce coughing in male mice and guinea pigs without causing taste disturbances—a drawback seen with other similar medications.
This suggests that quercetin could be a promising alternative to existing treatments for chronic cough, offering a potential new avenue for relief.
Read More
9
We explored whether quercetin, a compound derived from medicinal plants, affects coughing by relaxing airway smooth muscles. By conducting experiments with guinea pig tracheal rings, we found that quercetin effectively reduced contractions triggered by various stimulants. It worked by blocking specific calcium channels that are critical for muscle contraction.
However, the study mainly focused on the physiological mechanisms rather than directly measuring cough relief in humans. While quercetin shows promising properties in muscle relaxation, more research is needed to evaluate its direct impact on cough in clinical settings.
However, the study mainly focused on the physiological mechanisms rather than directly measuring cough relief in humans. While quercetin shows promising properties in muscle relaxation, more research is needed to evaluate its direct impact on cough in clinical settings.
Read More
Most Useful Reviews
9
Effective cough relief
34 people found this helpful
Initially bought as a precaution, I ended up needing quercetin when battling a lingering cough that lasted four weeks. Remarkably, after just three days of taking it, I found relief, and the cough started to diminish. This product is also beneficial for seasonal allergies.
Read More
9
Cough irritation reduced
11 people found this helpful
Quercetin was prescribed to me for reducing inflammation after my cancer diagnosis. Upon increasing my dosage, I had irritation in my throat which caused me to cough. Although I initially dismissed it as allergies, I decided to retry quercetin with bromelain. Within three days, the irritation and my coughing subsided significantly. What a relief!
Read More
10
Cough disappeared completely
10 people found this helpful
Quercetin was prescribed for my cough, which lasted two months due to pharyngitis. After trying various medications, I opted for dietary supplements from another doctor. Within two days I felt its effects and slept soundly at night, free from coughing. I recommend it, as my cough vanished entirely within a week. My daughter had a cough too, and after starting quartzin, she was free of it by day three.
Read More
Medical Researches
SCIENTIFIC SCORE
Moderately Effective
Based on 2 Researches
8.5
- All Researches
9
We explored whether quercetin, a compound derived from medicinal plants, affects coughing by relaxing airway smooth muscles. By conducting experiments with guinea pig tracheal rings, we found that quercetin effectively reduced contractions triggered by various stimulants. It worked by blocking specific calcium channels that are critical for muscle contraction.
However, the study mainly focused on the physiological mechanisms rather than directly measuring cough relief in humans. While quercetin shows promising properties in muscle relaxation, more research is needed to evaluate its direct impact on cough in clinical settings.
However, the study mainly focused on the physiological mechanisms rather than directly measuring cough relief in humans. While quercetin shows promising properties in muscle relaxation, more research is needed to evaluate its direct impact on cough in clinical settings.
Read More
8
We uncovered how quercetin, alongside a specialized compound called PSFL2915, affects chronic cough by interacting with a specific part of a receptor known as P2X3.
Our tests showed that quercetin could effectively reduce coughing in male mice and guinea pigs without causing taste disturbances—a drawback seen with other similar medications.
This suggests that quercetin could be a promising alternative to existing treatments for chronic cough, offering a potential new avenue for relief.
Our tests showed that quercetin could effectively reduce coughing in male mice and guinea pigs without causing taste disturbances—a drawback seen with other similar medications.
This suggests that quercetin could be a promising alternative to existing treatments for chronic cough, offering a potential new avenue for relief.
Read More
User Reviews
USERS' SCORE
Good
Based on 144 Reviews
8.2
- All Reviews
- Positive Reviews
- Negative Reviews
9
Effective cough relief
34 people found this helpful
Initially bought as a precaution, I ended up needing quercetin when battling a lingering cough that lasted four weeks. Remarkably, after just three days of taking it, I found relief, and the cough started to diminish. This product is also beneficial for seasonal allergies.
Read More
9
Cough irritation reduced
11 people found this helpful
Quercetin was prescribed to me for reducing inflammation after my cancer diagnosis. Upon increasing my dosage, I had irritation in my throat which caused me to cough. Although I initially dismissed it as allergies, I decided to retry quercetin with bromelain. Within three days, the irritation and my coughing subsided significantly. What a relief!
Read More
10
Cough disappeared completely
10 people found this helpful
Quercetin was prescribed for my cough, which lasted two months due to pharyngitis. After trying various medications, I opted for dietary supplements from another doctor. Within two days I felt its effects and slept soundly at night, free from coughing. I recommend it, as my cough vanished entirely within a week. My daughter had a cough too, and after starting quartzin, she was free of it by day three.
Read More
10
Cough gone entirely
7 people found this helpful
I bought this after a recommendation online, and it has been nothing short of miraculous! Following an exposure to an allergen, inflammation in my bronchial tubes persisted for two months, leading to a debilitating cough. After just two days of taking quercetin, the wheezing vanished! By the end of a month, the cough was completely gone. This product is far more effective than any prescription I've ever used. I'll keep it on hand for allergy seasons and other triggers.
Read More
9
Symptoms greatly reduced
7 people found this helpful
This medication has surprised me by working well! I’ve had allergies for four years and tried various remedies. To my amazement, it has drastically reduced my symptoms over time. My cough has completely disappeared, and I rarely experience itchy eyes or runny nose now!
Read More
Frequently Asked Questions
9
Effective cough relief
34 people found this helpful
Initially bought as a precaution, I ended up needing quercetin when battling a lingering cough that lasted four weeks. Remarkably, after just three days of taking it, I found relief, and the cough started to diminish. This product is also beneficial for seasonal allergies.
9
Nearly eliminated cough
2 people found this helpful
After a week of taking quercetin, the persistent cough that plagued me for three months nearly vanished. Cough pills and other remedies failed to help, but quercetin proved effective.
9
Better sleep quality
1 people found this helpful
Quercetin proved effective for my allergic cough; after about three days, the cough that would disrupt my sleep almost completely vanished, making it easier to fall asleep. Although the capsules are large, they can be swallowed easily with a bit of water.
10
Cough disappeared completely
10 people found this helpful
Quercetin was prescribed for my cough, which lasted two months due to pharyngitis. After trying various medications, I opted for dietary supplements from another doctor. Within two days I felt its effects and slept soundly at night, free from coughing. I recommend it, as my cough vanished entirely within a week. My daughter had a cough too, and after starting quartzin, she was free of it by day three.
9
Helps chronic bronchitis
2 people found this helpful
This is the sole product that alleviates my cough. It has helped me manage my chronic bronchitis effectively for the past few years.
9
Cough relief post-illness
1 people found this helpful
My husband and I took quercetin after being ill, and it effectively helped us manage our coughs. It's a very good supplement.
9
Symptoms greatly reduced
7 people found this helpful
This medication has surprised me by working well! I’ve had allergies for four years and tried various remedies. To my amazement, it has drastically reduced my symptoms over time. My cough has completely disappeared, and I rarely experience itchy eyes or runny nose now!
7.5
Less frequent coughs
2 people found this helpful
I consulted the doctor numerous times due to my allergic cough, yet there was no improvement. Not wanting more medication, I took this supplement which significantly reduced my allergic coughs! If I previously missed my medication, I would experience severe coughing, but now I am very thankful.
10
Cough relief
After a week and a half of using this alongside NAC, my post-like cough has practically vanished! I have great respect for both products!
9
Cough irritation reduced
11 people found this helpful
Quercetin was prescribed to me for reducing inflammation after my cancer diagnosis. Upon increasing my dosage, I had irritation in my throat which caused me to cough. Although I initially dismissed it as allergies, I decided to retry quercetin with bromelain. Within three days, the irritation and my coughing subsided significantly. What a relief!
9
Quercetin works well
3 people found this helpful
I am very pleased with this quercetin! It helped both me and my husband recover from bronchitis more quickly, and we noticed a significant reduction in our coughs. The anti-inflammatory and anti-allergic effects are impressive!
10
Supports lung health
Quercetin effectively repairs lung function and promotes lung health. It is particularly beneficial for treating emphysema and relieving cough and asthma. As a powerful antioxidant, its efficacy surpasses that of vitamin E and C.
9
Mild inflammation noted
2 people found this helpful
I came across this quercetin product with bromelain and found it beneficial for my respiratory system. I used to experience frequent coughing and asthma, but now the inflammation is milder, and I haven’t had asthma for 20 days. I only needed half the recommended dose, and it also supports my immunity. I plan to stock up.
8
Allergy relief without prescriptions
2 people found this helpful
My daughter and I avoided prescription medications for our severe allergies. Quercetin has worked wonders for us. We take 2 daily, and on high pollen days, 3 works better. I haven’t needed my annual shot this year, thanks to it.
References
- Flores-Soto E, Romero-MartĂnez BS, SolĂs-Chagoyán H, Estrella-Parra EA, Avila-Acevedo JG, et al. and Its Active Compound Quercetin as Ca Inhibitors in the Contraction of Airway Smooth Muscle. Molecules. 2024;29. doi:10.3390/molecules29102284
- 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
