Confidential report reveals: Big Pharma trying to stop long-term safety studies of ADHD drugs (Ritalin, Concerta) - Trans World News A confidential document, now made public by a Swedish court, tells how pharmaceutical companies (calling themselves the Consortium) are trying to stop long-term safety studies of ADHD drugs (Ritalin, Concerta) The companies producing methylphenidate products (like Ritalin and Concerta) are normally competitors, marketing ADHD as a disease and the narcotic drugs as its solution. But when they are threatened with marketing restrictions they have a common interest. If more scientific long-term studies would be done showing the harmful effects of the drugs it could lead to withdrawal from the market of this class of drugs. Therefore Big Pharma has to stop all such studies not written and controlled by themselves. The only studies they support are those conducted by paid researchers like psychiatry professors Joseph Biederman, Timothy Wilens and Thomas Spencer, where the outcome is known already from the beginning.