Linda – you can’t buy N-AC here over the counter (you can in the US). It’s an amino acid and is quite legal, they just don’t sell it OTC here. And I don’t think brand makes any difference with this one. I usually buy mine from eBay and generally choose NOW brand as the quantity/price deal seems the best. I take 1 x 600mg cap morning and evening.
RA tried everything: Methotraxate, Arava, Humira. Pneumonia three times. Anemia. Very low iron. Hypothyroidism
AP from April 2014 till August 2015. No luck.
Current medications: Natural thyroid, Mobic, LDN, supplements incl. milk thistle, NAC, vitamins and minerals.