Brussels, 21/10/2011 (Agence Europe) - On Friday 21 October, the European Commission opened an antitrust investigation, on its own initiative, to assess whether contractual arrangements between US-based pharmaceutical company Johnson & Johnson and the generic branches of the Swiss-based company Novartis may have had the object or effect of hindering the entry onto the market of generic versions of Fentanyl in the Netherlands. Fentanyl is a strong pain killer for chronic pain. The Commission...