Judge,
I think you are being a bit too specific. I doubt that you'll find much info PRECISELY about SLO-NIACIN which is the brand name of the extended release product made by Upsher Smith and available without a prescription.
In FACT, they are sprecifically prevented by LAW from making any medical claims about their product...only Niaspan (Rx) can make those claims.
I think you are on solid ground comparing SLO-NIACIN with any extended release niacin product, or indeed, with Niaspan, but probably not the inositol hexanicotinoate product which is really a different molecule than niacin.
Best is to try it and see what numbers you get.
I've been using it with Lipitor for many months now and find it just fine. Although I have just run out of my "cheapy" SLO NIACIN and switched to another time release formulation that I got in a bin at a discounter (about 20 bottles

): called DIXON'S Time Released Niacin. It is in clear capsules like those old time release cold preparations filled with the multicolored "beads." I got bottles of 100 caps- 250 mg. at $.99 each so I bought all they had.

The SLO NIACIN gave me a decent boost in HLD and, I think, a little further drop in LDL. Maybe a slight drop in Lp(a).
I take my niacin at night with my Lipitor and 650 mg. aspirin.