Have a symptom?
See what questions
a doctor would ask.
Supplements » NAC



NAC: NAC (N-acetyl-L-cysteine) is a modified form of cysteine, one of a number of nonessential amino acids, which make up the foundation and structure of protein in the body and have many important functions. NAC is available in supplements, such as tablets, sprays, and liquids, and capsules.

Adequate Amounts Claimed As Beneficial For Conditions: NAC

Adequate amounts of NAC are claimed to be potentially beneficial for:

Adequate Amounts Claimed As Preventative For Conditions: NAC

Adequate amounts of NAC are claimed to be potentially preventative for:

Toxicity/Overdose Risks For Supplement Or Excessive Intake: NAC

Excessive intake of NAC may involve the following risks:

  • Toxicity in some forms of cysteine, including D-cysteine, D-cystine, and 5-methyl cysteine
  • Nausea
  • Vomiting
  • Diarrhea
  • Hart disease
  • Toxicity leading to death
  • Seizures
  • Supplements not recommended for people with kidney disease
  • Taking one type of amino acid for extended periods may affect the balance and function of others
  • Possible allergic reaction in some people
  • Possible interactions with other supplements and medications
  • Consult with your healthcare provider before using any supplements, herbal remedies, and alternative therapies

NAC: Other Names

Other names for this supplements (NAC) include:

More Vitamins & Supplements Topics

  • L-carnitine
  • L-cysteine
  • Lactinex
  • Lactobacillus acidophilus
  • Laetrile
  • Lecithin
  • Lemon Balm
  • Licorice
  • Linden
  • Linoleic Acid
  • Lipoic acid

    By using this site you agree to our Terms of Use. Information provided on this site is for informational purposes only; it is not intended as a substitute for advice from your own medical team. The information on this site is not to be used for diagnosing or treating any health concerns you may have - please contact your physician or health care professional for all your medical needs. Please see our Terms of Use.

    Home | Symptoms | Diseases | Diagnosis | Videos | Tools | Forum | About Us | Terms of Use | Privacy Policy | Site Map | Advertise