We started to study the pain killing substance (Dextro) Propoxyphene more than 20 years ago. As a matter of fact, nobody in the research world have studied this opiate as long and as serious - as we have.
The most known brands of this substance in US were Darvon and Darvocet. These drugs are banned since Nov 19, 2010 - more than five year ago.
Hundreds of lawyers now are working full time for the Pharmaceutical Companies, they have earned millions of dollar - already.