How can a naturally occurring amino acid be banned by the FDA and labeled as a drug?Because its effective against Covid 19 and FDA & Pharma doesnt like this natural cure!
WedMd article, not posting the link
Overview
N-acetyl cysteine (NAC) comes from the amino acid L-cysteine. Amino acids are building blocks of proteins. NAC has many uses and is an FDA approved drug.
N-acetyl cysteine is an antioxidant that might play a role in preventing cancer. As a drug, it's used by healthcare providers to treat acetaminophen (Tylenol) poisoning. It works by binding the poisonous forms of acetaminophen that are formed in the liver.
People commonly use N-acetyl cysteine for cough and other lung conditions. It is also used for flu, dry eye, and many other conditions, but there is no good scientific evidence to support many of these uses. There is also no good evidence to support using N-acetyl cysteine for COVID-19.
Although many dietary supplement products contain N-acetyl cysteine, the US FDA states that it's illegal for dietary supplements to contain N-acetyl cysteine since it's technically an approved drug. Prescription N-acetyl cysteine products are available under the guidance of a healthcare provider.
Effective
Complete or partial lung collapse(atelectasis). Inhaling a prescription form of N-acetyl cysteine helps treat collapsed lungs caused by mucus blockage. Prescription products must be given by a healthcare provider.
Lung tests. Inhaling a prescription form of N-acetyl cysteine is helpful to prepare people for diagnostic lung tests. Prescription products must be given by a healthcare provider.
Care of people with a tube placed in their windpipe(tracheostomy care). Inhaling a prescription form of N-acetyl cysteine helps prevent crusting in people with a tube in the windpipe. Prescription products must be given by a healthcare provider.
Possibly Effective for
Chest pain (angina). Taking N-acetyl cysteine by mouth or by IV seems to improve chest pain when used with the drug nitroglycerin. Taking N-acetyl cysteine by IV also seems to helpprevent nitroglycerin tolerance, but it might increase the risk for headaches and low blood pressure. IV products can only be given by a healthcare provider.
Autism. Taking N-acetyl cysteine by mouth might improve irritability in children and adolescents with autism. But it doesn't seem to help other autism symptoms.
Swelling (inflammation) of the main airways in the lung (bronchitis). Taking N-acetyl cysteine by mouth seems to reduce shortness of breath and coughing from this condition. Also, taking N-acetyl cysteine by mouth for 3-36 months seems to prevent flare-ups.
A lung disease that makes it harder to breathe (chronic obstructive pulmonary disease or COPD). Taking N-acetyl cysteine by mouth for at least 6 months seems to decrease flare-ups by about 40% in people with moderate to severe COPD. It seems to work best in people who are not already taking corticosteroids. In people with COPD who need to be hospitalized, taking N-acetyl cysteine in addition to regular treatment helps with recovery.
Kidney damagecaused by contrast dyes (contrast induced. But it only seems to help in people who already have poor kidney function.
High levels of homocysteine
Pubmed article (100s of studies of effectiveness)
The Potential Mechanism of N-acetylcysteine in Treating COVID-19
Nan Zhou et al. Curr Pharm Biotechnol. 2021.
N-Acetylcysteine (NAC) has been proposed to be used to treat Coronavirus Disease 2019 (COVID-19). By reviewing the existing pathological studies of COVID-19, it was found that abundant mucus secretion, formation of a hyaline membrane (supportive of acute respiratory distress syndrome), and interstitial fibrous exudation may be important characteristics of COVID-19 and pathological targets of drug therapy. In addition, multiple extrapulmonary organ injuries in COVID- 19 may be associated withcytokine storm. NAC is an important antioxidant and anti-inflammatory drug. NAC has been demonstrated to have mucolytic effects in bronchitis, relieve respiratory failure in acute respiratory distress syndrome, and inhibit fibrous exudation in interstitial lung disease in clinical studies. These findings suggest that NAC may have a therapeutic effect on the pathological targets of COVID-19. Furthermore, NAC decreases TNF-α, IL-1β, IL-6, IL-8, IL-10, and IL-17 serum levels in patients with sepsis, severe burns, acute liver failure, or peritoneal dialysis and may also reduce cytokine storm in COVID-19. The antiviral effect of NAC on other respiratory viruses may also benefit COVID-19 patients. Summarizing the potential mechanisms of NAC in treating COVID-19 suggests that the role of NAC in COVID-19 treatment is worthy of further research.
https://pubmed.ncbi.nlm.nih.gov/33371832/