RESULTS: Seven trials were identified, and data from n = 447 participants were included. Pooled analysis showed improvement of positive and negative syndrome scale following NAC treatment compared with placebo.
They found it to work better in the longer term studies than the shorter term ones.
Just to be clear, this is the addition of NAC to antipsychotic medicine. Not by itself.
CONCLUSIONS: NAC improved all aspects of positive and negative syndrome scale in schizophrenic populations and may be more efficacious with treatment durations up to 24 weeks.