What is N-Acetylcysteine NAC?

Category: Over the Counter Drugs

Most popular types: GNC N-Acetyl Cysteine ACC 600 Fluimucil Show all

false

See also: Acetylcysteine R+ lipoic acid and NAC SR

N-acetyl cysteine (NAC) is an altered form of the amino acid cysteine, which is commonly found in food and synthesized by the body. It is used as a mucolytic, any agent that dissolves thick mucus, to correct abnormally low glutathione levels, and for paracetamol/acetaminophen overdoses.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Idiopathic Pulmonary Fibrosis 134 41
ALS (Amyotrophic Lateral Sclerosis) 57 24
General health 33 15
Pulmonary fibrosis 14 6
Parkinson's Disease 12 6
Support immune health 10 0

Show all 76 reasons taken


  • Major
  • Moderate
  • Slight
  • None
  • Can't tell

Side effects

Side effects as an overall problem

Side effects as an overall problem
Severity Evaluations
Severe 5
Moderate 2
Mild 8
None 97

Commonly reported side effects and conditions associated with N-Acetylcysteine NAC

Side effect Patients
Nausea 3
Acid reflux 1
Decreased respiratory function 1
Diarrhea 1
Excessive gas 1
Excess mucus 1

Show all 19 reported side effects

Dosages

Based on patients currently taking N-Acetylcysteine NAC

Dosage Patients
1,200 mg daily 10
600 mg twice daily 10
600 mg daily 8
500 mg daily 5
600 mg three times daily 5
3 capsule(s) daily 4
1,800 mg daily 3
900 mg daily 2
1,200 mg twice daily 2
1 mg weekly 1

See all 27 dosages

Why patients stopped taking N-Acetylcysteine NAC

Multiple reasons could be selected

Reason Patients
Other 32
Did not seem to work 29
Doctor's advice 22
Course of treatment ended 10
Side effects too severe 9
Expense 7
Personal research 5
See all 92 patients who’ve stopped taking N-Acetylcysteine NAC

Duration

Currently taking N-Acetylcysteine NAC

Duration Patients
1 - 6 months 5
6 months - 1 year 5
1 - 2 years 10
2 - 5 years 31
5 - 10 years 14
10 years or more 2

Stopped taking N-Acetylcysteine NAC

Duration Patients
Less than 1 month 9
1 - 6 months 22
6 months - 1 year 21
1 - 2 years 20
2 - 5 years 18
5 - 10 years 4
Adherence
Adherence Evaluations
Always 73
Usually 22
Sometimes 9
Never taken as prescribed 8
Burden
Burden Evaluations
Very hard to take 1
Somewhat hard to take 7
A little hard to take 20
Not at all hard to take 84
Cost per month
Cost per month Evaluations
$200+ 0
$100-199 1
$50-99 2
$25-49 16
< $25 46
Not specified 47
Last updated:

16 patient evaluations for N-Acetylcysteine NAC

92 members have decided to share their profiles only with other members of PatientsLikeMe.

nacona
27310 thumb
nacona
Sex: M
Data Quality: 3 stars
Bulbar: mild
Arms: severe
Chest: none
Legs: moderate
I am: n
I have:
ALS

See nacona's full N-Acetylcysteine NAC history

Jun 19, 2016 (Started Nov 15, 2015)

  • Effectiveness
    Can’t tell (for ALS (Amyotrophic Lateral Sclerosis))
  • Side effects
    None
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: 600 mg Twice daily

  • 0 helpful marks
Dawn Angel
12044 thumb
Dawn Angel
Sex: F
Data Quality: 3 stars
On
Mouth/throat: none
Arms: none
Chest: none
Legs: mild
I am: n
I have:
Parkinson's

See Dawn Angel's full N-Acetylcysteine NAC history

Nov 1, 2015 (Started Jun 01, 2008)

  • Effectiveness
    None (for Support brain health)
  • Effectiveness
    None (for Parkinson's Disease)
  • Side effects
    None
  • Adherence
    Usually
  • Burden
    Not at all hard to take
Dosage: 500 mg Daily
Cost: < $25 monthly

Feb 15, 2012 (Started Jun 01, 2008)

  • Effectiveness
    Can’t tell (for Neuroprotection)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: 600 mg Daily
Cost: < $25 monthly

  • 0 helpful marks
Robert51
Portrait default thumb
Robert51
Data Quality: 1 star
  • Gender: M
  • Age: 65
Condition: Restless Legs 3 additional condition(s)
Quality of life:
  • Mental: Mild
  • Physical: None
I am: n
I have:
Restless Legs

See Robert51's full N-Acetylcysteine NAC history

May 7, 2014 (Started Dec 19, 2013)

  • Effectiveness
    Slight (for General health)
  • Effectiveness
    Slight (for RLS (Restless Legs Syndrome))
  • Side effects
    None
  • Adherence
    Sometimes
  • Burden
    A little hard to take
Dosage: 600 mg Daily
Advice & Tips: I just finished what I bought of it (200g), don't know if I will buy any more.
Cost: < $25 monthly

Feb 6, 2014 (Started Dec 19, 2013)

  • Effectiveness
    Can’t tell (for General health)
  • Effectiveness
    Moderate (for RLS (Restless Legs Syndrome))
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 600 mg Daily
Advice & Tips: Found available in powder form from fitness supplement companies. Think it may help RLS and stop mental "over-revving".
Cost: < $25 monthly

  • 0 helpful marks
Last updated:
Showing 3 of 16 patient evaluations for N-Acetylcysteine NAC