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N-acetylcysteine (NAC)

SupplementOff-label2 reviews
+2
Average score out of 5
Based on 2 experience(s)

An antioxidant supplement that is a precursor of glutathione. Used for its potential to reduce oxidative stress and inflammation associated with Long COVID.

Information
Subcategory
Antioxidant / mucolytic
Evidence level
3/5
Evidence type
Preclinical studies and some clinical trials
Score distribution
+5
0 (0%)
+3
1 (50%)
+1
1 (50%)
0
0 (0%)
Negative
0 (0%)
Most improved symptoms
Practical information
Time to effect
1-2 months
Latest reviews
F
Anonymous review+3
26-35 y.o. · 8/22/2026

Improved my chest pain and chest tightness

F
Anonymous review+1
26-35 y.o. · 4/22/2026

Started at same time as Guanfacine so not 100% positive about what is helping but I forget words less then I used to

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