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N-Acetyl Cysteine 用于 Post-Concussion Cognitive Symptoms

B

NAC demonstrated neuroprotective effects in traumatic brain injury models. MRI studies showed improvements in resting-state brain connectivity in mild TBI patients receiving NAC treatment.

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B

结论

NAC demonstrated neuroprotective effects in traumatic brain injury models. MRI studies showed improvements in resting-state brain connectivity in mild TBI patients receiving NAC treatment.

Key Study Findings

Randomized Controlled Trial n=50 Open-label
Changes in Resting-State Functional Connectivity and Cognitive-Affective Symptoms in Patients With Post-Concussion Syndrome Treated With …
Dose: None vs: waitlist control (standard of care) Outcome: resting-state functional connectivity and cognitive-affective symptoms 效果: None p<0.05

研究人群: patients with chronic post-concussion syndrome for at least 3 months

Review
Mitigating Traumatic Brain Injury: A Narrative Review of Supplementation and Dietary Protocols.
Dose: None vs: None Outcome: TBI prevention and neuroprotection 效果: None None

研究人群: Individuals with or at risk for TBI

Controlled Clinical Trial n=65 4 weeks Open-label
N -acetylcysteine is associated with reduction of postconcussive symptoms in elderly patients: A pilot study.
Dose: None vs: Standard care alone Outcome: RPQ postconcussion symptom severity 效果: RPQ day 7: 2 vs 10; day 30: 0 vs 4 p=0.004 (day 7); p=0.021 (day

研究人群: Elderly patients (>=60y) with mild TBI

Review
Akathisia and Restless Legs Syndrome: Solving the Dopaminergic Paradox.
Dose: None vs: None Outcome: None 效果: None None

研究人群: restless legs syndrome

Review
Supraphysiologic-dose anabolic-androgenic steroid use: A risk factor for dementia?
Dose: None vs: None Outcome: None 效果: None None

研究人群: None

Review
Dietary Supplements for Health, Adaptation, and Recovery in Athletes.
Dose: None vs: None Outcome: Health, adaptation, and recovery in athletes 效果: None None

研究人群: Athletes

Key Statistics

6

研究数量

400

受试者

Positive

B

等级

Referenced Papers

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

常用剂量

general:
600-1,800 mg/day
neuroprotection:
1,200-2,400 mg/day

上限: Not established as supplement; 6,000+ mg/day used clinically (IV)

研究中使用的剂量

剂量 持续时间 效果 N
None -- Positive 50
None -- Positive --
None 4 weeks Positive 65
None -- Mixed --
None -- Positive --
None -- Mixed --
NAC 100 mg/kg body weight orally daily for 14 days 2 weeks Positive 24
None -- Mixed --

最佳服用时间: On empty stomach; split into 2-3 doses; supplement zinc if using long-term

Safety & Side Effects

已报告的副作用

  • Nausea and vomiting
  • Diarrhea
  • Unpleasant sulfur taste/smell
  • Rare: bronchospasm (inhaled form)
  • Long-term use may deplete zinc stores

已知相互作用

  • Nitroglycerin (may enhance hypotensive effects)
  • Activated charcoal (reduces NAC absorption)
  • Anticoagulants (theoretical interaction)

可耐受最高摄入量: Not established as supplement; 6,000+ mg/day used clinically (IV)

在开始服用任何补充剂之前,请务必咨询您的医疗保健提供者。

Frequently Asked Questions

Does N-Acetyl Cysteine help with Post-Concussion Cognitive Symptoms?
Based on 6 studies with 400 participants, there is moderate evidence from clinical studies that N-Acetyl Cysteine may support Post-Concussion Cognitive Symptoms management. Our evidence grade is B (Good Evidence).
How much N-Acetyl Cysteine should I take for Post-Concussion Cognitive Symptoms?
Studies have used various dosages. A commonly studied range is 600-1,800 mg/day. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of N-Acetyl Cysteine?
Reported side effects may include Nausea and vomiting, Diarrhea, Unpleasant sulfur taste/smell, Rare: bronchospasm (inhaled form). Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for N-Acetyl Cysteine and Post-Concussion Cognitive Symptoms?
We rate the evidence as Grade B (Good Evidence). This rating is based on 6 peer-reviewed studies with 400 total participants. The overall direction of effect is positive.

Related Evidence

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