Check out the ergopharm site on it.
Patrick Arnold seems to have hit shit dialed in pretty tight and he's selling it, so that's good enough for me.
He recommends taking it at the same time as creatine. He calls it "aerobic creating" whereas creatine improves your energy for anaerobic respiration.
If I'm not mistaken it's also a Nitric Oxide precursor.
Nukdae