I thought this might interest you. I take NAC on and off for liver purposes and I was actually searching the internet for a purer pharmaceutical grade when i came across this article.
http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1952618
Its basically saying that they found that N-acetyl cysteine at high doses causes pulmonary artery hypertension which is a pretty nasty condition.
Just though some of you might be on it, and if so you can read and make your own decisions.
http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=1952618
Its basically saying that they found that N-acetyl cysteine at high doses causes pulmonary artery hypertension which is a pretty nasty condition.
Just though some of you might be on it, and if so you can read and make your own decisions.