All stores in my area have been out of NAC all week. Yesterday one told me that FDA has finally cracked down. Supply line choked off. I confirmed this with another store today. Amazon caved back in May, but the supplement industry was holding out. Looks like that has ended. For those of you who don’t know, NAC was introduced as a drug in the 60s. It was originally used as an expectorant for bronchial phlegm. It is also used for liver detox in Tylenol overdose. I’ve seen many Freepers post on the benefits for COVID-19 in the last year....