Banning of scientific information (re:FDA,etc.)

I don't know if they are still doing it,but last year there was a discussion on sci.med about the FDA's pressure on certain medical journal publishers not to publish certain peer-reviewed medical studies here in the US. And,as far as I can see,their policy of supressing information is effectively suppressing an effective nutritional therapy that helps people quit crack..(L-Tyrosine) Why?,Who knows. But it's telling that they always seem to support the large corporate approach to global pharmaceutical marketing.. Shades of the Opium Wars. Remember,its ten years after 1984.