deltaforce,
I am afraid you are mistaken.
DSL#3 is available without perscription (450 billion per sachet).
DSL#3 DS is NOT available without perscription. (900 billion per sachet).
I was so surprised when I read your post I called the Medical Information Department at Sigma-Tau Pharmaceuticals, Inc. 1-866-GET-VSL3 (438-8753), the makers of DSL.
They told me DSL#3 DS is not available over the counter; you still need a prescription for the DS.
They told me if anything labeled DSL#3 DS is being sold without a prescription, it is not authentic.