Brussels, 27/11/2002 (Agence Europe) - The European Commission has taken a decision against Aventis Pharma SA and Rhône-Poulenc Biochemie SA (Aventis group) as well as Merck KgaA, which were found guilty of colluding to fix prices and market shares for methylglucamine between 1990 and 1999. Methylglucamine is a chemical substance used in x-ray analyses. Aventis and Merck are the only two pharmaceutical grade methylglucamine producers in the world, a market worth around EUR 3.1 million in...