More than 100 people who claim they developed a gambling habit after taking drugs used to treat Parkinson’s disease have filed a class action lawsuit in Australia against Pfizer and Aspen Pharmacare. The claimants allege they lost hundreds of thousands of dollars and suffered family breakdowns because of compulsive gambling behaviour caused by the drugs. The drugs implicated are Cabaser, sold by Pfizer, and Permax, sold by Aspen. The class action suit claims Pfizer and Aspen failed to warn of increased risk of compulsive disorders. In 2008, a jury in Minnesota awarded US$8.2 million to a man who became a compulsive gambler after using Mirapex, a drug sold by Boehringer Ingelheim, to treat Parkinson’s disease.