Hi vegeta, I would give methionine a try. It's very similar to NAC but gentler so you could use it even before alot of copper has been cleared....it will help you on many levels since it's a chelator of copper but also helps clear the liver, kick start methelation which is a major issue for copper toxic folks and make more bile. it also helps with estrogen dominance so there's much benefit in it...i use the powder for thru source naturals, it's cheep. start with a tiny dose and build up to 500mgs...keep me posted. also are you taking any B6? you may want to add that in the P5P form which is biouvailable since your liver may be struggling too much to convert it...also how much magnesium are you taking?