hi. how much NAC are you taking? some of the smaller studies I've seen referenced used very high doses, like 2 grams+, for a long time, and it took months to see benefits, even when the people/patients were kept on standard treatment.

have you tried a sustained release version? Jarrow makes one. They recommend taking your pills on an empty stomach for better results. Maybe that could help?

There are other supplements. I do old school Orthomolecular, which is basically just tons of vitamin C, B3, E, etc., plus standard treatment. Inositol, at high doses, helps some people w/ psychiatric problems.

hope this helps.