Glenntaj: Thanks for this info. The R vrsion means that many fewer pills to take. I like that.

David, I can't open any of your links. I've tried using both Mozilla and Explorer and I'm at a loss. But my computer(s) home and work, are both falling apart. They're not that old and both are doing weird things. Quirky.

Alkymst, I meant N-acetyl cysteine. I went back to theorignial post to change it, but I was locked out of editing because it's too many hours since the original post.

I seem to be having a bit of trouble typing. Maybe sticky keyboards, or maybe I'm clumsier than usual, but I'm past corrcting the errors.

Thanks all, putting in an order, and waiting on the niacin.