Vitacost and other health and nutrition stores have always had it.
I don’t remember the details, but I think there are different forms of NAC. The kind that vitamin/supplement outlets have always sold may be different from the prescription type.
9 posted on 04/22/2022 10:56:40 AM PDT by Jamestown1630
("A Republic, if you can keep it.")
28 posted on 04/22/2022 1:37:03 PM PDT by catnipman
(In a post-covid world, ALL "science" is now political science: stolen elections have consequences)