Acetylcysteine User Reviews & Ratings

• all...
• November 19, 2011

Acetylcysteine for Expectoration "I started using acetylcysteine last May. For the first time in 20 years, my lungs were clear. My bronchitis disappeared. My FEV1 increased by 25 percent. My sinus condition cleared up, and the headaches were gone. I do not understand why this medicine is not used routinely for COPD and other respiratory ailments."

• Cat...
• Taken for 1 to 6 months
• March 4, 2023

Acetylcysteine for Dietary Supplementation "I'm female, mid-30s. Started taking this when I had COVID as I am prone to developing ARDS. I read that NAC can help boost immunity and repress inflammatory overreaction. I did not develop ARDS. I can't say for certain that the NAC prevented it. I will say, however, that wheezing and chest tightness stopped, fever went down, and I began to recover within 24 hours of starting the NAC. I stopped taking it for a while. Later I started taking it daily for 4-6 months. Stopped recently due to medical issues. Results: 1) (neutral) At last 2 med checkups BP was 95/66 and 106/60 (usual 125/80) 2) (negative) Started having severe palpitations, iron deficiency worsened, odd results on metabolic panel. 3) (positive) I did not catch stomach flu or colds that others in my home had."

• TLD...
• Taken for less than 1 month
• May 8, 2013

Acetylcysteine for Expectoration "I had severe bronchitis from a sinus infection while traveling. It was causing me severe pulmonary distress. I was taking my rescue inhaler every 2 hours. The doctor in Hungary prescribed acetylcysteine to help clear the lungs. My lungs cleared in days. What a difference! The only side effect I had was dripping from my nose. It liquefied the mucus there too. Usually back home in the US, they prescribe steroids (prednisone) and albuterol nebulizer treatments for weeks while the coughing clears. No more for me."

• Eli...
• Taken for less than 1 month
• September 23, 2023

Acetylcysteine for Dietary Supplementation "I've now been taking NAC 650 mg in the evening for 2 weeks. I suffer from chronic depression and generalized anxiety. It helps to stabilize my mood, and it definitely helps with anxiety. I thought I should perhaps take a small break, and yesterday I skipped the pill. I woke up feeling quite sad, and in a couple of hours, the anxiety started to get stronger. I gave up the idea of a break and took one NAC pill right away. After a while, I felt a lot lighter. What surprised me is that my singing voice suddenly improved a lot. I have suffered from voice issues. I think NAC helps with acid reflux, lungs, and mucous membranes. Also, anxiety and stress relief helps. I hope this doesn't wear off, as all the other supplements have done so far."

• Anonymous
• Taken for less than 1 month
• September 5, 2022

Acetylcysteine for Dietary Supplementation "Gave me bad acid reflux, coughing, and I later found out it exacerbates asthma, had me so sick. Will never take again. Also read online NAC exacerbated tumor growth in lung cancer and melanoma. It may help some, but if you have asthma, be cautious. Wish I had read before taking. Don't let the good reviews fool you."

• fou...
• Taken for 1 to 6 months
• August 21, 2023

Acetylcysteine "This is the best. I had breathing issues, always winded, couldn't walk up stairs without losing my breath. They were going to put me on an inhaler, they all cost $300.00 and up. So my lung specialist told me to try this. OMG, it was amazing. My breathing started to get back to normal. I felt great, I didn't sit around. I started to exercise cardio again for 1 hour. I started losing weight, my breathing got better, my coughing stopped, my depression left. I felt so happy, everything that was wrong went away. I was so active again, I'm not winded. I will continue to take this. This is my miracle drug. I'm so happy I can walk my dog 4 miles again. I do everything I used to, I am me again, thank you. I saw bad reviews, maybe it doesn't work for all, but it sure did for me. It took a while, but I could feel my breathing slowly getting better."

• ric...
• Taken for 6 months to 1 year
• August 16, 2022

Acetylcysteine for Dietary Supplementation "I take this for COPD. I am wheezing constantly. After regular use of NAC cysteine, it helps a little, reducing mucus but creating a difficulty in breathing and wheezing daily. Whereas this did not happen before taking this drug, I revert back to MSM powder with vitamin C liquid and feel better."

• Fem...
• Taken for 2 to 5 years
• October 14, 2022

Acetylcysteine for Dietary Supplementation "I've taken it off and on for a few years, for its antioxidant effects initially, and the past couple of years for lung support, as my asthma tries to blossom into COPD. I take 600 mg once daily. Seems to help, doesn't hurt, with one exception. If I take it daily for more than a couple of weeks, it aggravates a pain in my left calf that is also aggravated by consuming generous amounts of smoked meat (yes, really). My doc has no idea what's up with any of this, but isn't worried. My present hypothesis is nitrogen sticking with endothelial tissue in a vein. Oh, aging is SUCH fun!"

• JSa...
• Taken for less than 1 month
• May 14, 2019

For Expectoration "I purchased acetylcysteine over the counter from a pharmacy in Barcelona, Spain, in December 2018. I had chronic bronchitis that was aggravated by a cold or respiratory condition. This miracle drug stopped my coughing soon after taking it. Now, in 2019, I have chronic bronchitis, and it is the only thing that clears up my coughing and makes me feel better too. I don't understand why they discontinued it in the U.S. when you can purchase it all over Europe."

• Pol...
• Taken for less than 1 month
• February 3, 2021

For Expectoration "Acetylcysteine in the form of ACC200 has been very important in my recovery from COVID-19. The chest X-ray during hospitalization showed quite a lot of COVID damage to the lungs. I have been taking 1x ACC200 tid. It has definitely helped to clear my lungs of mucus. I am very grateful to have the benefits of acetylcysteine in my long road to recovery from a terrible case of COVID-19."

• Rel...
• November 7, 2013

For Expectoration "I had severe bronchitis while traveling in the south of France this summer and had an excellent experience with the French socialized health system. A local doctor in a small village in Provence prescribed Exomuc (an orange-flavored granular form of acetylcysteine made to be taken orally when dissolved in a small glass of water). My cough was gone within 48 hours! Why is this not a commonly prescribed drug in the U.S.? I normally take steroids, decongestants, and cough formulas for 1-2 weeks in the U.S.!"

• vin...
• Taken for 1 to 6 months
• September 20, 2020

For Expectoration "I am suffering from chronic sinusitis for at least 60 years. I went through lavage every two weeks in my teenage years. I had sinus surgery and different medications, including antibiotics, steroids, and more, nothing made a difference. Today, I am taking the acetylcysteine 200 mg tablets, lemon flavor, called Reolin, 3 times a day. It is made in Germany, and I got it in Israel. I am feeling much better, it clears the mucus, and my breathing is better. It is not a cure, but this is the best help I had so far."

• the...
• June 24, 2011

For Expectoration "It helped my asthma a lot, diminishing the cough quite a bit. I didn't get any bronchospasm from it despite the warnings, however, some itching appeared but soon went away. Before my asthma was under control, it also helped a lot by making the mucus much easier to cough up. It works very well every single day (if I stop taking it, the coughing soon enough increases)."

• hap...
• Taken for 2 to 5 years
• March 26, 2023

Acetylcysteine "In my late 70s, I had atrial fibrillation (A-fib) daily for a year or two. I tried NAC, and starting the next day, I had not one episode of A-fib. I have been taking NAC (specifically Swanson N-Acetyl-L Cysteine) every day for over two years with mostly positive results against A-fib. I still occasionally have a bout of it, mostly mild and short-lived. No negatives to report."

• Anonymous
• June 14, 2015

Acetylcysteine for Expectoration "As a healthcare professional having given Mucomyst to patients over more than 30 years of career, I've yet to observe any benefit from the aerosolization of this med. I don't want to minimize the previous comments. Used during a bronchoscopy in liquid wash, it will dissolve thick mucus quickly and effectively, but the benefit of aerosolization has not been demonstrated or established in any controlled study. Also, after more than 24 hours of use, the lung tissue will begin to 'weep.' This is a very caustic substance to the lung. Too often, it's ordered for a specific problem area of the lung. As the laws of nature take effect in that gas follows the path of least resistance, Mucomyst is delivered to all areas of the lung with minimal effect on the problem."

• Nan...
• Taken for 6 months to 1 year
• March 26, 2018

Acetylcysteine "I've been taking 1800 mg/day of acetylcysteine for CFS (chronic fatigue syndrome) or myalgic encephalomyelitis (ME) symptoms, and it is the single best supplement I’ve found. Dosage based on CFS study. Half-life is only 3 hours, so timed release is most helpful, though more expensive, and only one brand available at this time."

• Anonymous
• November 12, 2009

For Expectoration "When I came down with pneumonia while living in Israel, acetylcysteine (brand name Siran) made all the difference. The medicine came as effervescent tablets with a lemon flavor, taken with water four times a day. Within 48 hours, I could feel a world of difference as I started to purge all the fluid and congestion from my lungs. Siran is one of the most effective medicines for expectoration I have ever used."

• Ros...
• Taken for less than 1 month
• February 20, 2024

Acetylcysteine for Dietary Supplementation "I had taken NAC a few years ago to help repair damage in my body caused by taking the very strong antibiotic cipro. It helped to restore cell damage and I tolerated it well. With the flu hitting close to home, I decided to take it again as a prevention, but within a few days I started having terrible acid reflux and just a feeling of unwellness."

• Avi...
• Taken for 2 to 5 years
• January 12, 2017

For Expectoration "Personally, taking 600 mg orally bid (or tid if symptomatic) for allergic bronchitis has reduced overall severity of seasonal exacerbations. Have recommended it to others with chronic sinus or respiratory conditions where it's indicated, and most of the time, reports are very favorable. A safe, older drug that is largely neglected in the U.S. A recent trial in China showed decreased hospitalizations in persons with COPD who are maintained on N-acetylcysteine."

• Ang...
• Taken for 1 to 6 months
• June 22, 2024

Acetylcysteine "I am 46 years old and have had tension headaches that turned into chronic migraines over the past 10 years. NAC has been a miraculous treatment for combating my migraines and returning to a normal life. I wish every person suffering from migraines today would try this supplement to see if it helps them as it has helped me. After many years of struggling with this condition, I have found relief with NAC. I have always been a very healthy, athletic, and calm person, but with the onset of migraines, I am even stricter. I don't drink alcohol, I don't drink coffee, I eat healthy, I meditate, and despite all this, the migraines were daily. I tried every treatment there could be: acupuncture, yoga, alternative medicine, etc., and took all kinds of medications from painkillers to triptans, treatment with Botox and Emgality. I saw several neurologists, but nothing helped until I found NAC. I take only one 600 mg pill in the morning; I do not recommend a higher dose because it can disrupt sleep."

• tps...
• Taken for less than 1 month
• January 10, 2015

For Expectoration "Got over the counter for severe respiratory congestion while traveling in Bruges, Belgium, in 2012. Extremely and quickly effective. Will obtain additional supply in March 2015 when returning to Belgium. No adverse effects."

• sof...
• Taken for 1 to 6 months
• January 12, 2024

Acetylcysteine for Dietary Supplementation "I wanted to share my experience with using NAC as part of my approach to managing high cholesterol. After researching potential solutions, I incorporated Nutraharmony's NAC into my routine. I've been taking NAC for a while now, and it seems to be contributing positively to my cholesterol management journey. While it's not a one-size-fits-all solution, I've noticed some improvements. So, I will continue to monitor my results."

• Fig...
• Taken for less than 1 month
• February 6, 2019

For Expectoration "I have COPD. NAC was recommended by a friend. Started taking it about 3 weeks ago. Got a sinus infection. My pulmonologist could not believe my breathing remained clear. Diagnosed 2 years ago, for me that's the best thing yet. Before, I had a few clear breathing days, now more clear than cloudy."

• Nod...
• Taken for less than 1 month
• February 21, 2022

For Expectoration "I am a recovering lung cancer survivor with COPD, GERD, TBM, and severe eosinophilia asthma. I was given vials for inhalation to clear the mucus from my lungs. After using this one time, I became acutely ill and unable to breathe. I cannot stop coughing, and I feel so heavy in my chest I can’t even breathe. I don’t understand how this could happen, but I need medical assistance. After 2 days of this, I feel like it could be the end of me. Going to the ER."

• Fra...
• Taken for 6 months to 1 year
• March 14, 2020

For Expectoration "I have severe COPD and am prescribed acetylcysteine 10% 4 ml solution. It works great for me loosening up my phlegm. The only issue with it here in Delaware County, Pennsylvania, is that not one pharmacy can obtain it. There is a shortage."